MASTER BOOK – SECTION 1 Rev. 2007 - EKA Group

aises the level of the environment 

Access Floor 

• FEATURES 

• COATING 

• ACCESSORIES 

• INSTALLATION 

MASTER BOOK – SECTION 1 Rev. 2007

INTRODUCTION 

THE SYSTEM 

The continuous technological development makes “Nesite Access Floor System” crucial for “Intelligent Building” 

and therefore to create “Active Work Areas”, ready to deal with these changes. 

Thanks to its characteristics of flexibility, “Access Floor System” grants the designers full “design freedom”, 

offering a wide range of panels, covering materials and substructures, all manufactured according to tight 

technical standards and providing Official Certificates concerning following important technical aspects, such as: 

- fire resistance and fire reaction 

- mechanical characteristics (concentrated and distributed loads) 

- electrical characteristics (antistatic or conductive) 

- acoustical characteristics 

- anti-seismic characteristics 

PANELS 

Thanks to its experience and know-how, Nesite is able to provide to the market high level performances and 

quality panels with core made of chipboard (different possible density), inert material or even matching both. 

Being able to deal with the different acoustic and structural needs, already tested to be assembled with 

traditional market flooring, from the cheaper such as HPL to the more expensive such as ceramic, wood, marble 

and granite via the classic vinyl, linoleum, rubber and carpets. 

Nesite products have been developed co-operating with the main covering producers, elected by the R&D 

department based on aesthetic and technical consideration. 

A set of aluminium or steel top surface panels allows to lay any kind of covering. 

Special materials like glass and steel, alone or together combined, are standard products for Nesite. 

SUBSTRUCTURES 

Nesite Access Floor System is completed by a range of 6 different types of structure, all patented and 

manufactured by Nesite itself, starting from MP (Multi Purpose) family with/without stringers according to the 

required loading performances, to the SSH system (single central screw), which grants easy and fast installation 

in large areas. 

ACCESSORIES 

Nesite provides a range of accessories, especially designed to complete the “Access Floor System” for the full 

satisfaction of the end user: from underfloor partitions to ramps and steps. 

Hatches, turrets, grills and perforated metal panels optimise the use of electrical and air-conditioning equipment 

installed in the underfloor plenum. 

NESITE SERVICE 

One of the most important aspects and advantages of “Access Floor System” is the service offered by Nesite to 

its customers for the best use of the System itself. From the design to the after sales service, every phase is 

thought to grant the customers more than the simple supply of a product. 

Rev. 01.08.07 

NESITE S.p.A. – Via L. Da Vinci, 20 – 35028 PIOVE DI SACCO – Z.I. Tognana (Padova) Italy – Tel. +39.049.9713311 – Fax +39.049.9713313 

NESITE S.p.A. reserves the right to change technical data without notice 

www.nesite.com e-mail : nesite@nesite.com 

1

1 – RAISED FLOOR SYSTEM 

MASTER BOOK 

INDEX 

1.1 Fire resistance 

1.2 Fire reaction 

1.3 Acoustic insulation and comfort 

1.4 Mechanical resistance 

1.5 Electrical characteristics 

1.6 Earthing 

1.7 Antiseismic test 





2

1.1 - FIRE RESISTANCE 

The European Technical Committee CNE TC127/WG17 is drawing up a specific norm regarding the fire 

resistance of raised access floor. At the moment the valid norm in Italy is the circular of the Interior Ministry N° 

91 of 1961 which deals with the fire resistance tests of materials and building structures , or the norm UNI 

7678/ISO 834. 

After the publication of the above circular, several tests have been carried out at the Centre of Studies of the Fire 

Service of Rome and at other laboratories, obtaining the appropriate official certificates. 

Subsequently after the circular N° 91, other circulars and decrees have been issued to clarify this argument, 

stating that the tests have to take into account the following elements: 

- Structural stability (R) 

- Integrity=passage of smoke and flame (E) 

- Thermal insulation (I) 

These three elements must be tested together and at the same time for the certificate to be approved by the 

Italian Fire Service. 

Nesite possesses all the certificates issued by the Italian Interior Ministry – General Management of Civil 

Protection and Fire Protection Service attesting the validity of Nesite Raised floor certificates based on the three 

above mentioned criteria. 

The Nesite Access Floor System can be classified as REI 15, 30, 45, 60, 90, depending on the kind of cores and 

coverings. 

Test scheme 

0 

C 

Underfloor temperature 

1200 

C 

1000 

800 

600 

400 

200 

A 

B 

100 

15 30 45 

min 

An underfloor burning is simulated in a furnace and the temperature increases as per the standardized curve C. 

The average surface temperature of the panel is measured, and whenever it exceeds 150°C, the time elapsed in 

minutes is noted since the furnace has been switched on. During this measurement both the stability and 

integrity must be maintained. 

In the above drawing panel “A” has exceeded the temperature limit (150°C) after 15 minutes only, whereas panel 

“B” after 47 minutes. 





3


FURNACE TESTS PROCEDURE TO BE FOLLOWED FOR THE APPROVAL OF MATERIALS: 

1 - TEST IN ACCORDANCE WITH GOVERNMENT CIRCULAR N° 91 September 1961 

CLASSES 

REI 15, REI 30, REI 45, REI 60, REI 90, REI 120, REI 180 

EQUIPMENT USED 

Furnace able to heat the specimen and to create the required heat and pressure conditions. 

TEMPERATURE CURVE 

The firebox and the furnace temperature must increase according to the test curve shown in the following figure. 

TEMPERATURE MEASUREMENT 

The furnace temperature must be the average obtained from the temperature measured in at least three 

positions, 10 centimetres far from the tested specimen. Not less than three thermal sensors must be placed on 

the unexposed surface of the specimen. 

DIMENSIONS 

The tested elements must have the same characteristics like the ones utilized on the regular building. 

TEMPERATURE 

The average temperature shall not be over 150°C, and the temperature at any point shall not increase by more 

than 180°C above the initial temperature, and in any case not over 220°C, whatever was the initial temperature. 

OTHER FACTORS DETERMINING THE FIRE RESISTANCE 

Passage of smoke and flame; structural stability. 

2 - TEST ACCORDING TO UNI 7678 / ISO 834 

CLASSES 

F 15, F 30, F 45, F 60, F 90, F 120, F 180 

EQUIPMENT USED 

Furnace able to heat the specimen and to create the required heat and pressure conditions. 

TEMPERATURE CURVE 

The furnace temperature must vary with time, as per the following formula: 

T+To = 345 lg (8t + 1) in which: 

T = furnace temperature at time t 

To = initial furnace temperature 

t = time expressed in minutes 

TEMPERATURE MEASUREMENT 

The furnace temperature is considered as the average value calculated by the thermocouples installed in the 

furnace; 1 every 1,5 m 2 of surface. 

DIMENSIONS 

The tested elements must have the same characteristics like the ones utilized on the regular building. 

TEMPERATURE 

The average temperature shall not be over the initial temperature + 140°C, and the temperature at any point 

shall not increase by more than 180°C above the initial temperature, and in any case not over 220°C, whatever 

was the initial temperature. 

OTHER FACTORS DETERMINING THE FIRE RESISTANCE 

Passage of smoke and flame; structural stability. 





4


COMPARISON BETWEEN TEMPERATURE CURVES 

CIRCULAR 91/UNI 7678 – ISO 834 

1200 

1000 

800 

°C 

600 

400 

200 

0 

0 30 60 90 120 150 180 

min 

Circolare 91 UNI 7678 - ISO 834 

Time 

[min] 

Circular 91 

[°C] 

UNI 7678 – ISO 834 

[°C] 

5 450 556 

10 650 659 

15 750 718 

30 880 821 

60 1000 925 

90 1025 986 

120 1040 1029 

180 1100 1090 





5

1.2 FIRE REACTION 

This concept expresses the response of a raised access floor to a tentative ignition (flame penetration) coming 

from the environment (the room where the panel is installed). Most of Nesite panels has been tested with this 

method and obtained the certification in class “1”; class “0” can be achieved for instance by stones or marbles. 

Various Nesite panels have been tested and certified as per Ministerial Decree of 26/06/84, regular supplement 

of the Gazzetta Ufficiale of 25/08/84, and listed in the Gazzetta Ufficiale of 29/08/86. 

90° 

RADIANT PANEL 

SAMPLE 

WIRES 

BURNER 

FLAME 

TESTING PROCEDURE CSE RF 3/77 

COMBUSTION CHAMBER 

SAMPLE 

FLAME 

SUPPORT 

TESTING PROCEDURE CSE RF 2/75/A 

TEST FOR COVERING MATERIALS 

The flame, once the covering material has been set on fire, spreads out and cuts the wires within a cert period of 

time. In Italy the CSE/RF norm classifies the materials in classes 0,1,2,3,4 etc.; class 0 (not combustible) is the 

less sensitive. 





6

1.3 - ACOUSTIC INSULATION 

AND CONFORT 

A raised floor when walking on it generates noise, which can vary in intensity according to the following factors: 

- mass and rigidity of the panel 

- panel covering material 

- characteristics of the substructure and related gaskets. 

The noise so generated is transferred through the supporting slab, down to the area below (standardized ISO 

test method) 

Test scheme 

a) in this situation the trampling noise can be heard in the 

area below. The noise reduction is considerable. 

b) while, in this kind of situation, the trampling noise is 

heard in the same room. The noise level is slightly 

higher than that of a traditional flooring. This difference 

will be smaller by an accurate designing and choosing 

suitable materials. 

BASIC MEASUREMENTS AS COMPARISON PARAMETERS 

Test “a” has been standardized. The noise heard in the area below is examinated, comparing the noise levels of 

a raised floor with those of a traditional floor positioned in the room above. 

The influence of covering is one of the key parameters. 

Test “b” has not been standardized. The noise within the room itself is measured. 

The noise is influenced up to 80% by the type of covering, the remaining 20% by the weight of the panel. 

Therefore it is not possible to compare the two types of flooring, because at the moment a test which exactly 

quantifies such noise does not exist. 

Thus we may have a situation such as the one described hereunder, in which the arrows size means the noise 

level generated. 





7

1.4 MECHANICAL RESISTANCE 

This is intended as the capacity of a floor to bear, while deflecting, a certain working load. 

SITUATION OF CURRENT NORMS 

The CEN/TC 323 “Raised Access Floor” is issuing the European Norm prEn 12825 regarding the raised floor. 

Regarding Italy, UNI - Building Commission GL13 - SC4 has elaborated on the base of recommendations of the 

Association of Raised Floor Manufacturers the norms UNI 10465, UNI 10466, UNI 10467, UNI10467-1, UNI 

10467-2, UNI 10467-3, UNI 10467-4 and UNI 10467-5 regarding the raised floor. During 1995 these norms have 

been published and are now available. Regarding this argument the norm UNI 10466 establishes 4 different 

load-classes, as follows: 

- class 1 : kN2 (~ 200 kg) light load 

- class 2 : kN3 (~ 300 kg) medium load 

- class 3 : kN4.5 (~ 450 kg) heavy load 

- class 4 : special loads, to be defined at project stage, in any case > 4.5 kN (> 450 kg) 

ACTUAL STATUS 

Today, apart from the classification UNI 10466, the data for mechanical resistance of a raised floor is expressed 

according to two parameters: 

- concentrated load bearing capacity 

- distributed load bearing capacity (not included in the new UNI norms and in the CEN draft norm) 

The resistance values are expressed according to the deflection of the floor at the established load values during 

use. The reference value is normally 2.5 mm, and is related to the grade of comfort the floor has to give to 

walking. 

A raised floor (in case of uniformly distributed load) normally gives a higher resistance than the slab; for this 

reason this parameter is not contemplated in the norms and in the norm-drafts. 

Therefore the resistance to concentrated load is has a bigger importance during the choice and evaluation of the 

raised floor system. 

Indicatively, for a choice the following concentrated loads can be considered: 

- offices ~ 2 kN (about class 1 UNI 10466) 

- computer rooms ~ 3 kN (about class 2 UNI 10466) 

- control rooms ~4.5-5 kN (about class 3 UNI 10466) 

We have to consider the following indications: 

- very heavy equipments (strong-boxes, archives, etc.) may be placed in the offices 

- some projects require higher mechanical resistance, around 500 kg concentrated loads. 

MECHANICAL RESISTANCE TESTS 

A given working load is applied on a raised floor module by means of hydraulic equipment; then the total 

deflection of the module is measured axially to the load itself. The deflection should be ≤ 2.5 mm. 

The weight is usually increased until the panel breaks. The ratio between the breaking load and the working load 

expresses the safety factor rate, which according to the new norms and the norm-drafts has to be ≥ 2. 

Load kg 

Deflection mm 





8

1.5 – ELECTRICAL CHARACTERISTICS 

This matter is very important for two reasons: 

- personal safety 

- the good functioning of the data processing equipment and other electro-sensible appliances 

On the raised access floor surface, due to trampling friction, electrostatic charges be can generated, which could 

be harmful to the people of for the functioning of the data processing equipment. The formation of such charges 

is influenced by the air relative humidity, and increases with dry air in the room. 

Therefore it is important that such electrostatic charges could dissipate from the top surface of the panels to the 

building earth, or directly to the ground. For this reason several solutions can be chosen, depending on the 

specific applicative requirements (conductive gluing or earth cables on a few spots for structures with stringers). 

To eliminate the above illustrated phenomenon the raised access floor should normally have electrical resistance 

values within the range min. 1.5 x 10 and max. 2 x 10 Ω 

HOW TO MEASURE ELECTRICAL RESISTANCE 

The panels to be tested are climated for 24 hours in a room with a temperature of 20°C and 50% relative 

humidity. As per the above figure a voltage of 100 and/or 500 V is supplied between the upper covering and the 

lower side of the panel. The electrical resistance is then measured by means of a suitable electrical device. 

100 / 500 VOLT 

TEXSAS INSTRUMENT 

The possible classifications are: 

Antistatic Offices, meeting rooms, halls, computer rooms 1 x 10 9 < R ≤ 2 x 10 10 Ω 

Static-dissipative clean rooms 1 x 10 7 ≤ R ≤ 1 x 10 9 Ω 

Conductive 

Laboratories, control rooms, operating rooms, 

explosive powder magazines 

1.5 x 10 5 < R < 1 x 10 7 Ω 

(*) As norm DIN 51953 and 54345 100 Volt; As UNI 10467-5 100 Volt; As NFPA 99 500 Volt. 





9

1.6 - EARTHING 

Earthing of the structures, apart from the the problem of the discharge of electrostatic charges, is an important 

factor especially when all the wiring run underfloor. 

Listed here are some simple but fundamental instructions to be followed for safety reasons: 

- when wires run in raceways, boxes and flexible ducts, earthing is not necessary. 

- when wires run free in the underfloor void, earthing is required: for structures with stringers a connection every 

30 m² approx. is usually enough. 

- concerning the stringerless structures, it is recommended to install the wires in tubes, boxes or flexible ducts. 

A 

BOLT M6x15 

+ NUT M6 

EARTHING TO 

THE BUILDING 

EVERY 30 m 

2 

A 

COPPER PLAIT 16 mm 

2 

WITH RING-LUG 

SEZ. A-A 

PUT TO EARTHING WITH SSH SUBSTRUCTURE 





10

1.7 - ANTISEISMIC TEST 

The Nesite Access Floor System has recently undergone rigid seismic tests comparable to very strong 

earthquake. Nowadays it is present in a large number of computer centres, public and private offices, telephone 

exchanges, hospitals and many other working places equipped with high-tech instruments. 

The response of the raised floor under specific seismic stress has been proved by means of scientific and 

reliable tests. 

These tests have been carried out at the ISMES Centre in Bergamo (Institute of experimental models and 

structures), one of the most qualified European Laboratories in this field. 

The test have been carried out on a access floor sample which has been installed within a room itself and not on 

a model, in order to verify the real effects of an earthquake. 

The results have clearly proved that the Nesite Access Floor System can bear, without damages, the effects of 

the most violent earthquake ever experienced. 

TEST RESULTS - reference spectrum according to Newmark 

FLOOR TYPE 

INTENSITY OF SEISMIC EVENT 

[Richter grades] 

Panel Structure x z xy 

RESULT 

PLT (WOT-P) MPS (SST) 8 8 6 no floor alteration 

PLT (WOT-P) MPC (SAC) 8 10 5.3 no floor alteration 

PG3 (3FO-P) MPS (SST) 8 10 6 no floor alteration 

PG3 (3FO-P) MPC (SAC) 8 8 5.3 no floor alteration 





11



INDEX 

2.1 Top Coverings 

2.2 Homogeneous vinyl 

2.3 Linoleum 

2.4 HPL (High pressure laminate) 

2.5 Granite agglomerate 

2.6 Marble agglomerate 

2.7 Needle-punch carpet 

2.8 Velour carpet 

2.9 Loose lay carpet 

2.10 Rubber 

2.11 Natural marble 

2.12 Natural granite 

2.13 Gres of Ceramic 

2.14 Natural wood 





12

2.1 – TOP COVERINGS 

There are different types of floor coverings available, but not all of them are suitable for raised floor. 

This is due to the following reasons: 

• the dimensions: since an access floor module is 60 x 60 cm, it is not possible to manufacture with 

coverings of smaller dimensions. It is also not advisable to use coverings whose dimensions are not 

compatible with the floor module, because of waste excess and/or an unsuccessful final design (for 

example studded rubber with module differing from 60 cm). 

• not all materials are suitable for being glued to an access floor panel, such as certain floor spongebottomed 

carpets; other materials can not even be cut successfully, such as certain bouclè carpet, 

because they fray. 

ELECTRICAL CHARACTERISTICS 

What ever concerning may be, PVC, needle-punch carpet, plastic laminate etc., coverings possess transversal 

electric insulation characteristics, (through their thickness), known as electrical resistance. The unit of 

measurement is ohm (Ω). 

If this value is >1x10 9 ≤2 x 10 10 Ω, we talk about antistatic coverings, if the value is ≥1x10 7 ≤1x10 9 Ω we talk 

about static-dissipative coverings, and if the value is >1.5 x 10 5 2 x 10 10 Ω, such as parquet or 

some kinds of rubber, but these coverings are not suitable for computer rooms or electronic instrument rooms. 

Carpet 

Spongy back not 

resisting to tear 

Panel 

On the above drawing, the spongy back does not resist to tear. 





13

2.2 – HOMOGENEOUS VINYL 

DESCRIPTION 

Flexible tile obtained from polyvinyl chloride, filler inerts, plasticizers and dyes, mixed at different production 

cycles. 

Available both in antistatic, static-dissipative, conductive versions or without any electrical characteristics. 

CHARACTERISTICS 

Weight Kg/m 2 x mm 1,5 

Thickness mm 2 – 3 

Fire reaction CSE/RF Class 1 

FIELDS OF APPLICATION 

- Offices, laboratories, computer rooms, technical laboratories, with medium load requirements. 

APPLICATION NOTES 

- It can be applied on PLN, PLT, PW4, PC5 and PG3 panel core. 





14

2.3 – LINOLEUM 

DESCRIPTION 

Flexible tile made of a mixture of cork and wood with various granulometry, inert charges, organic dyes, 

linseed-oil and small quantities of synthetic resins and subsequent glazing. The substance thus obtained is laid 

on a jute base and undergoes a forced natural oxidation. Since this is an organic substance, its surface does not 

attract electrostatic charges. A static-dissipative version (~ 10 8 Ω) is also available. 


Weight Kg/m 2 x mm 1.2 




- Offices, banks with low-medium traffic. For medium-high load requirements, it would be advisable to use 

bigger thickness. 

- Computer rooms in static-dissipative version. 



- It is cigarette burns resistant. 

- It is not advisable to use it in technical rooms because of its difficult maintenance and low resistance to 

acids. 

- Linoleum matures trough oxidation period and a shade variation (yellowing) is evident (it is more evident with 

lighter colours). This is temporary as it reverts back to its true colour once exposed to daylight. This effect is 

even faster if there is direct sunlight. To establish the correct colour place sample piece in direct daylight for 

a few hours. 

The yellowing is not a lack of quality but is simply a natural progression of the raw materials in linoleum. 





15

2.4 – HIGH PRESSURE LAMINATE 

DESCRIPTION 

Rigid sheet made of phenolic resin-soaked Kraft paper and of a specially treated decorative melamine layer. The 

paper sheets are then pressed at high temperature and pressure to condensate the resins. The resulting sheet is 

then roughed on its bottom side by grinding. 

It is available in antistatic or conductive version. 


Weight Kg/m 2 x mm 1,4 

Thickness mm 1,2 

Fire reaction CSE/RF Class 1* 

* on request 


- Offices, laboratories, computer rooms, technical laboratories, with medium load requirements. 







16

2.5 – GRANITE AGGLOMERATE 

DESCRIPTION 

Flat plates obtained from crushing and controlled granulometry of hard and rocky materials, mixed with polyester 

resins, and subsequent thermal polymerization in plates. The material thus obtained is then processed like any 

other traditional granite. 


Weight Kg/m 2 about 14 

Thickness mm 6,5 

Side dimensions mm 600 x 600 

Finishing Type Polished or dressed 


Composition % granite 93-95%; polyester resin 5-7% 

* on request 


- Offices with medium load requirements. 


- It can be applied on PLT, PW4, PC5, PG3 and PC2AV panel core. 

- It is not recommended, since the agglomerates mixed with resins are naturally not antistatic and 

photosensitive. 





17

2.6 – MARBLE AGGLOMERATE 

DESCRIPTION 

Flat plates obtained from crushing and controlled granulometry of soft stony materials, mixed with polyester 

resins, and subsequent vacuum polymerization in blocks or plates. The material thus obtained is then processed 

like any other traditional stony materials. 


Weight Kg/m 2 about 25 

Thickness mm 12÷13 


Finishing Type Polished or dressed 


Composition % marble 93-95%; polyester resin 5-7% 

*on request 

FIELDS APPLICATION 

- Offices with medium load requirements. 



- It is not recommended, since the agglomerates mixed with resins are naturally not antistatic and 

photosensitive. 

. 





18

2.7 – NEEDLE PUNCH CARPET 

DESCRIPTION 

Felt made of synthetic fibres of different diameters, assembled by continuous punching and combined with a 

bottom support layer - usually resinate - to increase its peeling resistance. The system requires the use of precoloured 

fibres of different colours mixed together to obtain a final result of melange. When the felt contains thin 

fibres, for instance stainless steel or carbon, it possesses conductive characteristics. 


Weight Kg/m 2 1,3 

Thickness mm about 6,5 




- Generally for offices, also with high load requirements. 


- It can be applied on PLN, PLT, PW4, PC5, and PG3 panel core. 





19

2.8 – VELOUR CARPET 

DESCRIPTION 

Carpet obtained from flake weaving of polyamide threads on a synthetic cloth (not woven). The bottom face is 

usually glued using latex. Electric conductivity can be obtained by inserting stainless steel fibres in the thread 

and contemporarily adding carbon in the lower latex layer. 



Thickness mm about 6,5 




- Generally for offices, also with high load requirements. 







20

2.9 – LOOSE LAY CARPET 

DESCRIPTION 

Square carpet tile obtained by application of needle-punch, velour or tricot carpet with a bottom layer of 

reinforced bitumen or multilayer polyvinyl chloride with special characteristics of adaptability. 


Weight Kg/m 2 5 

Thickness mm about 8 

Side dimensions mm 500 x 500 - 600 x 600 



- Generally for offices. 



- It is advisable to fix tiles using a stick/detach glue every 2-3 rows of tiles on both longitudinal and orthogonal 

directions. 





21

2.10 – RUBBER 

DESCRIPTION 

Flexible tile made of homogeneous mixture of synthetic rubber and stabilizing mineral charges. The mixture is 

then glazed and vulcanized in its mould. Also available in antistatic and/or conductive versions. The finishing 

surface can have smooth, embossed or studded design. 



Thickness mm 2 - 4 



- Control rooms, operating rooms, technical rooms, halls with high load requirements. 



- The surface finishing in relief is not always suitable for raised floor, because of the difference between panel 

size and relief size. 





22

2.11 - NATURAL MARBLE 

DESCRIPTION 

Quarry material with veined decoration or expanded design, usually with a calcareous base. Naturally it does not 

store electrostatic charges. This material is relatively resistant to the abrasion. 


Weight Kg/m 3 2300 -2800 


Measurement mm 600 x 600 

Surface finish Type Polished or dressed with chamfer 



- Low-medium load requirements. 


- It can be applied on PG1AV and PC2AV panel core. 

- It is not suitable for high traffic requirements, or in rooms with contact directly to external areas, owing to its 

low abrasion resistance. 

- The dressed version is recommended, since scratches are less evident. 

- It must not be used in rooms equipped with wheelchairs. 





23

2.12 – NATURAL GRANITE 

DESCRIPTION 

Coarse grained quarry material, with repeated thin designs. It does not store electrostatic charges. It is very 

resistant to the abrasion. 


Weight Kg/m 3 2500 –2700 


Measurement mm 600 x 600 

Surface finish Type Polished or dressed with chamfer 



- Medium-high load requirements. 


- It can be applied on PG1AV and PC2AV panel core. 





24

2.13 – GRES OF CERAMIC 

DESCRIPTION 

Flat slabs made of clay, quartz, kaolin and feldspar and obtained by sintering the material at over 1200 °C. 

The main characteristics are a good resistance to wear, to chemical and atmospherical agents, aging and 

bending. 


Weight Kg/m 2 20 – 25 


Measurement mm 300 x 300 - 600 x 600 

Surface finish type matt or polished 



- Offices, halls, laboratories, and generally rooms with high load requirements. 







25

2.14 – NATURAL WOOD 

DESCRIPTION 

Natural wood strips glued together in strips or other designs, and UV varnished on the surface. 


Weight Kg/m 2 6 – 12 

Thickness mm > 3 

Surface finish Type varnished 


*on request 


- Directional offices, generally high class offices with low-medium load requirements. 


- It can be applied on PLT, PW4, PC5 and PG3 panel core. 

- It is not suitable for high traffic requirements, or in rooms with contact directly to external areas, owing to its 

low abrasion resistance. 





26



INDEX 

3.1 Accessories for service connections 

3.2 Accessories for air passing 

3.3 Connecting ramps 

3.4 Connecting steps 

3.5 Expansion joint 

3.6 Bracing 

3.7 Underfloor and fire partitions 

3.8 Finishing accessories 

3.9 Lifting tools 





27

3.1 – ACCESSORIES FOR 

SERVICE CONNECTIONS 

PANELS WITH ACCESSORIES 

Panels are the same as the standard ones, but they have already incorporated the exits for connections such as 

electrical, phone, EDP, etc.. 

DISTRIBUTION TURRETS 

The turrets enable the connection of electrical devices and/or phone in a single point of distribution. They are 

positioned in the working areas, usually under the desks. 

B 

B 

B 

1 2 3 

A 

A 

A 

DESCRIPTION RIF. MATERIAL 

Weight A B 

[kg] [mm] [mm] 

NOTES 

Mono 1 (Vertical) 1 plastic ∼ 1 220 150 Ministry certification P.T. 

Mono 2 (Horizontal) 2 plastic ∼ 1 180 220 Ministry certification P.T. 

Triedra 3 plastic ∼ 1 160 200 Ministry certification P.T. 

FLOOR HATCH 

The floor hatches do not create any obstruction. The 5 mm thick steel plate of the hatch can withstand 

light/medium loads. 

B 

1 2 

A 

A 


WEIGHT A B 

[kg] [mm] [mm] 

NOTES 

Hatch 1 steel and plastic ∼ 1.5 195 220 load max 300 Kg 

electrical box 2 steel and plastic ∼ 2 300 120 Ministry certification P.T. 





28

3.2 – ACCESSORIES FOR AIR 

PASSING 

PERFORATED PANELS AND GRILLES 

These comprise the elements which allow the passage of air from the underfloor plenum to the room, when the 

access floor is also used as a supply duct. They can also be used for simply airing the ground floor to avoid 

stagnant air. 

There are perforated steel panels and aluminium grills, these last one normally have dimensions 150x600 mm. 

The grills and the perforated panels with 576 holes are also available with the airflow-regulation as optional. 

Perforated steel panels have usually technical coverings and are suitable for clean rooms, since they do not 

generate suspended particles, which for example could damage microchip production. 

They are usually installed in offices where there is heating/air conditioning, which uses underfloor plenum for airflow. 

The grills can be installed with a dust-collector and a sound insulator box. 

B 

B 

C 

D 

1 

2 

C 

3 

m /h 

1500 

1400 

1300 

1200 

1 

2 

3 

C 

1100 

1000 

4 

3 

4 

900 

D 

800 

700 

600 

500 

400 

PERFORATED METAL PANEL WITH 576 HOLES 

300 

200 

100 

0 

5 10 15 20 

25 

30 35 40 45 50 Pa 


Walkable grill without 

regulation 

WEIGHT 

[kg] 

THICKNESS 

[mm] 

B 

[mm] 

C 

[mm] 

D/∅ HOLES 

[mm] 

NOTES 

1 Al-alloy 2,5 30-52 150 600 - Load max 120 kg 

Walkable grill with regulation 2 Al-alloy 3,9 30-52 150 600 80 Load max 120 kg 

Metal panel with 576 holes 

without regulation 

Metal panel with 576 holes with 

regulation 

3 Steel 7 30 (*) 600 600 10 Load max 300 kg 

4 Steel 8 30 (*) 600 600 10 load max 300 kg 

(*) to adjust to thicker panels, adjusting pedestals are applied to the four angles of the panels 





29

Proprieta`riservata - Ri produzione vi etata atermine di lege- 

Copyright -Nachdruck verboten-Propriete' reservee 

3.3 – CONNECTING RAMPS 

RAMPS 

Ramps are essential features whenever the access floor is higher than the building slab. These up stands are 

usually made of wood and covered with studded rubber or any other non-slip covering. 

5 

SECTION A-A 

6 

PARTICULAR 

B 

7 

8 

A 

A 

B 

1 

2 3 4 

EXTERNAL RAMP 

DESCRIPTION RIF. MATERIAL THICKNESS NOTES 

[mm] 

metal structure of the floor 1 galvanized steel - 

steel column for height adjustment 2 galvanized steel Tube 1” regulation ±15 mm 

reinforcing frame 3 steel Tube 50x20x2 

fixing screw 4 galvanized steel - 

angular finishing element 5 aluminium 2 on request 

lateral closure 6 black melanine coated chipboard 25 on request 

non-slip covering 7 black rubber 5 on request 

terminal 8 aluminium - 

TYPE 1 TYPE 2 

H 

H 

L 

L 

W 

W 

TYPE 3 (EXTERNAL) 

TYPE 4 (INTERNAL) 

H 

L 

L 

H 

W 

W 





30

3.4 –CONNECTING STEPS 

STEPS 

Steps, such as ramps, are necessary whenever the access floor is higher than the building slab. They are 

usually made of wood and covered with studded rubber. 

3 

5 

5 

4 2 

1 

EXTERNAL STEP 

DESCRIPTION RIF. MATERIAL THICKNESS 

NOTES 

[mm] 

metal structure of the floor 1 galvanized steel - 

internal structure of the step 2 listed wood 20 

angular element 3 aluminium 2 on request 

laterale closure 4 black melanine coated chipboard 25 on request 

non-slip covering 5 black rubber 5 on request 

TYPE 1 TYPE 2 

H 

H 

L 

L 

W 

W 

TYPE 3 (EXTERNAL) 

TYPE 4 (INTERNAL) 

H 

L 

L 

H 

W 

W 





31

3.5 – EXPANSION JOINT 

JOINT 

Joint composed with a supporting aluminium profile and a 

neoprene gasket. The raised floor joint is installed in the 

same position of the building expansion joint. The profile 

is fastened with an angular element to the raised floor 

panel and to the head disc of the substructure. The 

pedestals have to be fastened to the slab by means of 

screw anchors or cross-bracings. 

6 

2 

35 

1 

3 

RIF. DESCRIPTION MATERIAL 

1 joint aluminium 

2 gasket neoprene 

3 angular element aluminium 

4 screw anchor Plastic or steel 

5 pedestal steel 

6 panel various 

4 

5 





32

3.6 – BRACING 

BRACING 

The bracing system based on tie rods and struts is required whenever the floor’s horizontal rigidity has to be 

increased. Bracing are usually applied when floor ends with vertical wall closure (e.g. curtain walls), without 

sufficient horizontal contrast capacity. The tie rods or struts are made of profiled tubes to allow easy fastening to 

the slab, on one end, and to the access floor structure, on the other end. 

panel 

stringer 

angular element 

fastened to the panel 

column 

tie rod 

glue for 

base 

screw anchor 

Scheme of access floor bracing 





33

3.7 – UNDERFLOOR AND FIRE 

PARTITIONS 

PARTITIONS 

When the conveying of underfloor air, the increasing of acoustic insulation and the fire prevention are 

necessaries, some vertical elements are used to subdivide the plenum underfloor. They are known as acoustic 

and underfloor partitions, and fire partitions. 

Usually they are made of a calcium based inert agglomerate slab, easy to be cut in case of obstacles to be 

overcome, inserted in a steel profile guide and sealed with an adhesive gasket or with intumescent mastic. This 

material in case of fire becomes spongy and swells up, thus closing up all openings perfectly. 

ACOUSTIC AND UNDERFLOOR PARTITIONS 

This range includes the vertical elements to be used to convey the air flow underfloor, when this is used as an 

inlet/outlet air conditioning duct. 

The use of underfloor partitions increase also acoustic comfort of the access floor. The acoustic partitions are 

usually installed underneath the partitioning walls installed provided for on the floor, and designed according to 

their sound deadening capacity. 

FIRE PARTITIONS 

Fire prevention is a feature which nowadays must be taken into consideration. Any precautions taken are never 

enough. Since the access floor is a linking element inside the building, whenever complete and general fire 

protection is required, it is necessary to install fire partitions under the floor. The choice of the fire resistance 

level depends on and must be in harmony with the panels installed. 

1 2 3 

panel 

panel 

panel 

dividing 

separator 

structure 

mpc 

dividing 

separator 

REI 30* 

structure 

mpc 

dividing 

separator 

REI 60 

structure 

mpc 

DESCRIPTION RIF. DIGIT MATERIAL WIDTH NOTES 

[mm] 

Underfloor partition 1 BPOA/B Reinforced calcium sulphate 12,5 

REI 30* Fire partition 2 BP2A/B Reinforced calcium sulphate 12,5 + 12,5 

REI 60 Fire partition 3 BP3A/B Cementicious matrix silicate 20 + 15 CLASS 0 

*Indicative 





34

3.8 – FINISHING ACCESSORIES 

1 

SKIRTING 

Skirting made of plastic, anodized aluminium or painted 

wood. 

A 

RIF. DESCRIPTION MATERIAL A 

[mm] 

1 skirting wood 60 

1 skirting PVC 70 

1 skirting aluminium 70 

2 panel various - 

3 column steel - 

2 

3 

6 

UPSTAND 

Made of black melamine coated chipboard, it can feature 

the same covering as the floor panel, on request. 

2 1 

RIF. DESCRIPTION MATERIAL 

1 angle bar aluminium 

2 panel various 

3 upstand element black melamine coated 

chipboard 

4 screw anchor plastic or steel 

5 rectangular element steel 

6 screw steel 

7 pedestal steel 

7 

5 

3 

6 

4 





35

3.9 – LIFTING TOOLS 

For removing panels in case of maintenance operations, it is recommended the use of suitable lifting tools, which 

differ in accordance with the panel covering involved: 

- single cup lifting tool for resilient coverings (smooth finish); 

- double cup lifting tool for inert and generally heavy panels (e.g. PG3, PG1AV); 

- special lifting tool for carpet coverings; 

- nail type tool for special coverings. 

LIFTING TOOLS 

A double-cup lifting tool is recommended for inert (e.g. PG3) and generally heavy panels (PG1AV). The special 

lifting tool, for carpet coverings, is suitable for any kind of panel core. 

LIFTING NAIL 

It is used in case of special finishing panels, for instance bushhammered stones, studded rubbers and worked 

metal plates. When designing an access floor with such coverings, it is necessary to include a certain number of 

perforated panels and related nails (1 each 3 sqm ca.) to be distributed all around the floor surface. 

3 

1 2 

DESCRIPTION RIF. MATERIAL WEIGHT 

NOTES 

[kg] 

Single cup lifting tool 1 Aluminium-steel-rubber 0,5 Packed in carton box 

Double cup lifting tool 2 Aluminium-steel-rubber 1 Packed in carton box 

special lifting tool for 

carpet 

3 Aluminium-rubber 1,25 Packed in carton box 

Lifting nail 4 Steel 0,05 Nut, lock nut and washer included 

raising pos. 

lifting 

hook 

resting pos. 

4 

panel 

with hole 

hook 

washer 

panel with hole 

nut&counter-nut 





36



INDEX 

4.1 Installation 

4.2 Guide for the installation of raised floor 

4.3 Installation of raised floor with MPS substructure 

4.4 Installation of raised floor with MPL/MPM/MPH substructure 

4.5 Installation of raised floor with MPC substructure 

4.6 Installation of raised floor with SSH substructure 

4.7 Complementary products 





37

4.1 – INSTALLATION 

1 - SURVEY FOR THE PREPARATION AND ORGANISATION OF THE SITE 

First of all the site’s suitability to receive all the materials involved in the installation of the access floor has to be 

inspected. The site should have adequate facilities as follows: 

- suitable ways to get to the site by truck 

- closed weather-protected site for stocking materials 

- keeper 

- lifting equipment to bring materials to various floors (crane, elevators) 

- adequate service access to introduce materials to the various floors (access, doors, windows, ramps, etc.) 

- power sockets for apparatus 

- adequate electrical lighting 

- the rooms where the floor is going to be installed have to be clean and free of materials left from previous 

work 

- false ceiling and eventual sprinkler system (if any) should be already installed 

- external doors and windows should be already installed 

- when necessary, sealing of cableways, expansion joints and cracks, should be carried out 

- it is very important to verify the quality of the sub-floor finishing, which should be almost smooth. Such a 

finishing can be already obtained caring the sub-floor casting. 

In order to optimize the fulfilment of the work, the site personnel should give an appropriate support to: 

- The installers 

- The building Management 

- The customer 

2 - ALTIMETRICAL SURVEY AND TRACING 

After the inspection, when required, the position of the panels has to be traced out. This operation, in agreement 

with the client, is very useful as it allows rapid installation and good esthetical results. The floor layout may be 

different every time, but some preliminary rules should be followed to obtain better final results. 

It is also necessary to calculate the pedestals height, even if they are adjustable up to 50 mm, since the 

difference in level in the rooms can be higher than that. 

Concerning the height, the range is wider, starting from a minimum height of 10 cm up to about 1 m (and more, 

with a dedicated design for the columns). 





38


3 - INSTALLATION 

The floor installation has to be carried out in accordance with the above mentioned conditions. The slab in the 

room should be cleaned with a vacuum cleaner and a layer of anti-dust paint, preferably polyurethanic or 

epossidic types (because they do not alter in the time), should be applied. This procedure must be followed 

when the subfloor void will be used as an air-supply/return duct. 

The installation method depends on type of floor, with or without stringers. Once the layout of the panels has 

been decided, the installation can start. 

In order to obtain a reference point, such as a system of right angled lines, two perpendicular nylon wires are 

fastened from wall to wall; to calculate their perpendicularity, Pythagoras’ theorem, or simply 3-4-5 method, 

should be applied. 

Point “O” of fig. 1 refers to the starting and reference point of pedestals and panels installation. Once the 

structure has been installed, it has to be positioned perfectly flat. For this purpose several tools can be used: 15 

metre-long spirit levels, laser levels, optical theodolite, or the more common 3 metre-long rigid levelling rods. 

Once the structure has been installed, the panels installation can start too. It is advisable to start from the first 

row of internal panels along the two right-angled reference wires. Make sure that there are no small piece of 

panel on the floor. 

For stringerless substructures, whose bases have to be glued on the slab, pedestals and panels are installed at 

the same time, with constant levelling. In this case it is advisable to walk on the floor during the first 24 hours, in 

order to let the glue dry out. 

Once the panels and pedestals have been installed, the final stage consists of the installation of ramps, steps, 

upstands and relevant accessories. 

After the installation, if other refinishing touches are necessary, it is advisable to protect the floor covering 

surface with cardboard or polyethylene sheets. 

4- INSTALLATION TIME 

The installation time of raised access floor depends on several factors: 

- installer’s skill and experience 

- installation tools 

- dimensions, shape and access to the rooms 

- type of panel and covering (lower and upper surfaces) 

- type of structure 

A team of 2 installers can install from 20 to 80 m ² of floor per day, depending on the above mentioned factors. 

It is important to remember that a lot of time is required for the cutting and installation of the perimetral stringers 

and panels. 

It is advisable to give the job to skilled installers, equipped with all suitable tools necessary for a proper 

installation. 

NYLON THREADS 

3 

5 

0 

4 

Starting and reference wires scheme, 

whose perpendicularity is verified by 

Pythagora’s theorem also known as the 

3-4-5 method (and relevant multiples and 

submultiples). 

Final result of the floor grid at the 

end of installation. 





39


5 - RECOMMENDATIONS 

Keep free from obstruction all the access roads to the site where the raised floor will be installed, in order to 

permit the unloading of the materials near the access zones or the lifting equipment. 

Keep free from obstruction also the horizontal access to the site and to the lifting equipment to the floors, in 

order to permit the easy movement of the materials with transpallet. Appropriate passages for the transpallet 

have to be indicated where the raised floor will be installed. 

It is advisable to define contractually the characteristics and program of use of the lifting equipment for the 

vertical transport of materials. 

6 - STORAGE ON SITE 

The material has to be stored in dry and protected area, with temperature between 5°C and 35°C and relative 

humidity between 40% and 75%. 

7 - CONDITIONS OF THE ROOMS 

The raised floor should be installed in rooms with temperature between 5°C and 35°C and relative humidity 

between 40% and 75%. The building works should have been terminated not less than 30 days earlier, damp 

works not less than 15 days. External frames have to be already installed, the slab must be clean and flat. 

In the installation rooms, the exact finished floor height must to be indicated. 

Before starting the installation of the raised floor, all accessory works have to be completed, except from the 

mobile partitions which will be installed on the floor, 

In order to guarantee the safety and the quality of the installation, nobody (except for the installer can walk on 

the raised floor during installation and, if adhesives are being used, also for 24 hours after installation. 

8 - CLEANING OF THE SITE 

The installation includes the removal of all the wastage material on a pallet next to the installed and cleaned 

floor; it excludes the transport to the base level of the building and the transport to the public dump. 

After the floor installation and cleaning, it is advisable to protect the covering surface with a suitable material to 

avoid impacts, scratches and abrasions during following works. A suitable material is the MDF 2-3 mm thick, or 

a similar product. 

9 - HANDING OVER OF THE FLOOR 

The raised floor is tested and handed over just as soon as the installation is completed, before the application of 

the protection material (recommended),and the other accessory works. 





40


10 - FINAL CONTROL 

Procedure and acceptance criteria of the site final control. 

After the installation the raised floor has to correspond to following parameters: 

- allowed deviation of the alignment of the gaps between panels ± 3 mm 

- allowed difference of level between adjoining panels measured near the edge (panels without load) ± 1 mm 

- allowed difference of level on all the surface of the installed raised floor ± 6 mm 

N.B. except from other dispositions of the Customer Site Manager, with reference to connections to other 

floors. 

- perimetral cuts: maximum gap allowed between cut panel and wall or other element to be cut ≤ 10 mm. 

- stability of the panel: the panel has to rest on at least 4 points, (excl. perimetral adjustments) with balancing 

allowed, measured alternatively on two opposite corners of the panel without load ± 1 mm. 





41

4.2 – GUIDE TO THE 

INSTALLATION OF 

Preliminary to every installation the following general instructions are valid. 

Make sure that the slab is suitable to support the chosen substructure. Generally it can be said that the more 

regular the slab, the easier will be the installation and the better the final result. 

Make sure that the room where the raised floor will be installed is free of debris and perfectly clean. 

Check that all the brickwork and the complementary installation (in particular the external frames) have been 

installed some time before the installation is to take place, in order to avoid the formation of moisture. 

When required, verify that the slab has been treated with antidust primer. 

Check all the materials in order to determine what is missing. 

Determine the lowest and the highest point in the room so as to be able to calculate the height of the pedestals. 

To reduce the possibility of an error it is advisable to start with an area not exceeding 100-200 m²; nevertheless 

the amount may vary according to installer experience. 

Also for substructures with stringers sometimes it is necessary to fasten the bases to the slab either with glue or 

screw anchor, for example in the following cases: 

• height over 60 cm, 

• near the joints 

• in case of floor without perimetral walls (curtain walls) 

• whenever a better stability and stiffness of the raised floor is required. 





42

4.3 – INSTALLATION OF RAISED 

FLOOR WITH MPS 

1) The adoption of an MPS substructure requires that the slab is laid as flat as possible; the more this 

recommendation is followed, the better the final result and stability of the raised floor and the easier the 

installation. 

2) Start from 2 walls that are as much as possible right-angled; fasten two tight wires, at a distance of not more 

than 58 cm from the wall, and at about 2-3 cm above the finished floor. Calculate their perpendicularity by 

means of the 3-4-5 method (Pythagoras’ Theorem). Check that there will be no panel crop-ends against the 

wall which are shorter than 15 cm. 

3) Assemble the MPS pedestals (base + column + gaskets) approximately adapting them to the height 

required in the design measurement. 

4) Start the installation by laying the first panel on four pedestals, placing it with two sides exactly along the 

right-angled wires. Make sure that the mentioned wires do not meet any obstacles and have not been 

diverted. 

5) Proceeding by placing two parallel rows of panels and pedestals, carefully following the longer wire. 

6) Glue the bases of the pedestals to the floor with a suitable glue. Apply the glue under the base of the 

pedestal. 

7) The complete pedestal is then positioned and settled in its place by pressing it vertically until the glue 

squirts out from under the base perimeter. 

8) Adjust the structure height using the adjusting nut, making sure that the indexing notches have been 

connected, the head gasket tabs are correctly coupled with the lower panel corners and the pedestal is in 

the vertical position. 

9) Check the flatness using a spirit level and a rigid levelling rod at least 5 modules (3 m) long. 

10) Proceed with the installation of the panels using the parallel wires, aligning them with the previous installed 

rows of panels. 

11) Finish the operation with the laying of the perimetral panels, previously cut to size, on the pedestals which 

have already been glued to the slab. 

12) Cut with a cutter the gasket tabs along the perimeter wall, otherwise they would impede the correct support 

of the perimeter panels. 

13) Put a few drops of thread locking glue on the height adjusting nuts. 

14) Do not walk on the access floor if the perimetral panels have not been installed yet, and if the glues have 

not completely polymerized (about 24 hours). 

15) Sweep the floor and collect the residual materials on a pallet near the installed floor. 

16) After the floor installation and cleaning, it is advisable to cover the panels with a suitable material, in order to 

protect it from impacts, scratches and abrasions, for instance MDF 2-3 mm thick, or a similar product. 

MPS structure low 

MPS structure standard 





43


FLOOR WITH 





2) Assemble the MP pedestals (base + column + gaskets) approximately adapting them to the height required 

in the design measurement. 

3) Distribute the pedestals, already assembled, approximately following the designed floor grid and aligning 

them with reference to the right-angle wires. 

4) Starting from the intersection point of the wires, assemble the whole module with the horizontal stringers, 

covering an area of about 100 m² (area that can vary according to installer experience). 

5) Insert the fixing screws and fasten them. If you use an electric screw-driver take care that the tool has a 

suitable friction setting to avoid damaging the screw’s thread. 

6) Align the structure according to the exact network module using the wires as a reference and with the help 

of the tape measure. 

7) Adjust to the required height the pedestal which is closest to a height reference point set by the customer. 

Using a laser or an optical theodolite or a rigid levelling rod having a length equal to 5 modules (3 m) and a 

spirit level proceed with the levelling of all the other pedestals. 

8) Cover the structure with the relevant gaskets. 

9) At this point the panels can be laid in rows at right angles starting from the intersection point of the wires, 

using a rubber or plastic hammer, fitting the structure as the panel modules require. Take care not to dent 

the panel coverings. 

10) Complete the perimeter substructure by cutting the relevant stringers to size. In case of perimetral panel cut 

to small size, or in any case when necessary, place a portion of a stringer between the wall and the 

pedestal. Cover this part with a gasket. 

11) Cut with a cutter the gasket tabs parallel to the perimeter wall, as otherwise they would impede the correct 

placing of the perimeter panels. 

12) Complete the installation by placing the perimetral panels, which have previously been cut to size. 




MPL structure low MPM structure low MPH structure low 

MPL structure standard MPM structure standard MPH structure standard 





44


FLOOR WITH MPC 





2) Assemble the MPC pedestals (base + column + gaskets) approximately adapting them to the height 

required in the design measurement. 

3) Arrange the stringers along the floor, with the 1800 stringers placed longitudinally and the 560 mm ones 

placed transversally, and approximately following the designed floor grid, aligning them with reference to the 

right-angled wires. 

4) In the same way distribute the previously assembled pedestals. 

5) Place, in succession, the 1800 mm stringers on the pedestals and then the 560 mm ones, which act as 

spacers, on the nodal pedestals. 

6) Verify the perfect alignment using the right-angle reference wires and complete the perimetral section by 

cutting the stringers to size. 

7) Determine the correct size of the modules by measuring 10 - 15 perfectly aligned panels in succession. 

8) Insert the fixing plates and tighten the relative fixing screws on the pedestal heads, after checking the exact 

positioning with reference to the floor grid. 

9) With the help of a tight wire also arrange the intermediate pedestals along the 1800 mm stringers and insert 

the remaining 560 mm stringers fastening the screws on the relevant plates. 

10) Adjust to the required height the pedestal which is closest to a fixed height reference point set by the 

customer. Using this point as a reference, and using a laser or an optical theodolite or a levelling rod at 

least 5 modules (3 m) long and a spirit level, proceed with the levelling of all the other pedestals. 

11) Cover the stringers with the relevant gaskets. 

12) Starting at the crossing point of the wires, lay the full panels, verifying their centralization on the structure 

below. Perform this operation using a rubber or plastic hammer and take care not to damage the panel 

coverings. 









45

SEZ. A-A 

A 

A 


FLOOR WITH SSH 





2) Insert the fixing plate in the non tapered end of the square section tube rods. 

3) Insert the bases in the tapered end of the square section tube, and distribute the already assembled 

pedestals approximately following the designed floor grid and aligning them with reference to the rightangled 

wires. 

4) Starting from the intersection point of the wires, assemble the whole module with the horizontal stringers 

covering an area of about 100 m² (area that can vary according to installer experience). 

5) Insert the fixing screws and fasten them. If you use an electric screw-driver take care that the tool has a 

suitable friction setting to avoid damaging the screw’s thread. 

6) Align the structure according to the exact network module using the wires as a reference and with the help 

of the tape measure. 

7) Adjust to the required height the pedestal which is closest to a fixed height reference point set by the 

customer. Using a laser or an optical theodolite or a rigid levelling rod having a length equal to 5 modules (3 

m) and a spirit level proceed with the levelling of all the other pedestals. 

8) Cover the structure with the relevant gaskets. 

9) At this point the panels can be laid in rows at right angles starting from the intersection point of the wires, 

using a rubber or plastic hammer, fitting the structure as the panel modules require. Take care not to dent 

the panel coverings. 

10) Complete the perimeter substructure by cutting the relevant stringers to size, which will be supported at the 

cut end by the appropriate terminal stringers. In case of perimetral panel cut to small size, or in any case 

when necessary, place a portion of a stringer between the wall and the pedestal. Cover this part with a 

gasket. 

11) Cut with a cutter the gasket tabs parallel to the perimeter wall, as otherwise they would impede the correct 

placing of the perimeter panels. 





SSH structure 





46

4.7 – COMPLEMENTARY 

PRODUCTS 

1 - GLUE FOR BASES 

One component polyurethanic glue of various colours. It guarantees a perfect gluing between the structure steel 

base and the slab. Once the tin is opened, it must be used completely. 

- It hardens in about 24 hours; during this period do not walk on the floor. 

- Application: by hand or with pneumatic tool directly to the base of the structure. 

- Coverage: 1 kg for approx. 24m² 

- Package: 0.5 kg tins 

2 - ANTIDUST PRIMER 

It is used to harden the slab surface, in order to avoid undesired emission of dust or any other little fragments of 

material. This product is spread out on the slab after its careful cleaning and vacuuming before starting the floor 

installation. 

One component polyurethanic primer complete with diluent: 

- Application: by roll or brush 

- Coverage: 1 kg for approx. 3 m² 

- Package: 10 kg tins 

- 2 layers recommended 

One component water base vinyl primer: 


- Coverage: 1 kg for approx. 3 m² 

- Package: 10 kg tins 


One component water base polyurethanic antidust varnish: 


- Coverage: 1 kg of mixture for approx. 5 m² 

- Package: 2,5 kg tins 


3 - THREAD LOCKING GLUE 

One component glue to be applied in small quantities (a few drops) to lock the heads of columns or the adjusting 

nuts of the structure base. This is to avoid rotation due to accidental contact during maintenance purpose, or to 

vibration of the floor. It is supplied together with the access floor materials. 

- Package: 50g small bottles 

- Coverage: approx. 40 m² per small bottle 

- Application: a few drops by the bottle neck 

4 - THERMOADHESIVE EDGE 

Black plastic thermoadhesive edge to be used on site for perimetral cut panels or in case of small repairs. 

- Application: with a hot iron 

- Height: 45 mm 

- Thickness: approx. 0.5 mm 

- Package: 30 m rolls 





47

4.7 – COMPLEMENTARY 

PRODUCTS 

5 - COMPENSATION GASKET (TERODAEM) 

Semi-rigid self-adhesive strip used for small interventions of compensations between panel and structure, 

between panel and perimetral wall, and whenever a small spacer is required. 

- Dimensions: 500 x 20 x 1 mm 

- Package : 50 cm strips 

6 - AIRTIGHT GASKET 

Elastic and spongy self-adhesive tape generally used to seal the underfloor partition or for small finishing and 

sealing touches. It can also be used as an elastic spacer on the floor perimeter. 

- Dimensions: 13 x 8 mm 

- Package: in rolls 





48



INDEX 

5.1 Maintenance and cleaning 





49

5.1 – MAINTENANCE AND 

CLEANING 

1 - RECOMMENDATIONS OF USE 

Use the raised floor system in dry and protected environments, with temperature between 5°C and 35°C and 

relative humidity between 40% and 75%. 

In order to obtain the above mentioned conditions, It is advisable to separate the heat sources and to foresee a 

good ventilation if under the floor there is a piping containing hot fluids which could affect the local or general 

thermohygrometrical conditions, 

The distribution of the equipments should respect the modularity of the access floor. 

2 - ADVICE ON MAINTENANCE 

Use and maintenance 

The raised floor is composed of many removable components, in particular the walking surface panels lay down 

next to each other; therefore the stability of the floor should be maintained following some simple rules: 

a) When moving furniture, machinery or other heavy objects, a manual lifting trolley should be used rolled on at 

least 40 mm thick planks. 

b) If you remove several panels at once, avoid the creation of “islands” or long “channels”, and just lift the 

minimum quantity of panels needed. At the completion of the operations replace step by step all the panels. 

c) In case of raised floor with stringers, the underfloor hermetic seal is assured by the gasket strips fitted to the 

stringers; particular attention should be paid not to damage or move gaskets, which in case of damage have 

to be substituted. 

d) Removal and installation of panels must be executed only using appropriate lifting tools, never use 

mechanical or lever tools. 

e) During the repositioning of the panels proceed with highest care using slight pressure and not forcing in 

case of difficulty, verifying the correct position of the adjacent panels. 

If difficulties persist, you should contact the Nesite Site Service. Before definitely closing the floor, verify that 

eventual impurities have been cleared away. Verify that the structure is correctly positioned, the screws are 

tightened, and gaskets installed. 

f) Take particular care when removing panels with accessories (i.e. grills, electrical distribution, etc.) not to 

damage their connections. 

g) When removing cut panels (perimetral positions) take care to re-install them in the original position. 

h) If it is necessary to dismantle a part of the floor, it is advisable to number the panels in order to ensure the 

correct reassembly. 

i) The cutting or drilling of panels for accessories should be done respecting the distance from the edge to 

guarantee the Concentrated Loading Performance; it is recommended to cut or drill at a distance of at least 

100 mm from the edge using adequate tools. 





50

5.1 – MAINTANANCE AND 

CLEANING 

3 - CLEANING 

The regular and appropriate cleaning is essential for the maintenance of the characteristics of the raised floor 

system; the following recommendations have to be respected: 

a) Water or other liquids can be used on raised floor only if they not stay too long on the surface, and taking 

care that they do not seep in the sub-floor, or at least only the minimum possible; use a well wrung cloth and 

pay attention near the power and phone distribution systems; do not use water for the cleaning of the subfloor 

b) Do not use alkaline detergents, solvents, soda or soap 

c) Do not use pumice, sandpaper, wire wool pads or other abrasive substances 

d) If you need to use wax or other protective treatments, it is advisable to try this treatment on a small part of 

the raised floor, preferably which is not too visible. 

e) Waxes, which contain deodorants, supershine additives or perfumes are harmful. 

f) When the floor has particular electrical characteristics (antistaticity), consider that synthetic waxes are 

generally insulating. Therefore make sure that the used wax is a suitable one (antistatic) to preserve the 

electrical characteristics of the floor. 

FOR ALL COVERINGS (CARPET EXCLUDED) 

- Immediately after installation wash thoroughly with a well wrung out cloth and warm water containing a 

normal amount of neutral detergent as indicated by the manufacturer. 

- Repeat this operation after a few minutes. 

- Dry the floor completely with a clean cloth. 

- After a few hours polish the floor with a polisher fitted with felt pads. 

- If desired (but absolutely NOT recommended on plastic laminate) a thin layer of good quality wax polish, 

never containing solvents or perfumes, can be apply by hand. 

Daily cleaning 

- Remove dust using a vacuum cleaner. 

- Brighten up shine, If desired, by polishing with felt pads attached to a polisher. 

- Eventual re-polishing should be carried out, when necessary, using only good quality liquid polish in small 

quantities. 

- Apply the polish, if necessary, after wiping over the wax lightly using a damp cloth. 

- For a better shine use a small quantity of liquid emulsion polish mixed with water. 

FOR CARPET COVERING 

- Immediately after installation thoroughly vacuum the floor by a brush type vacuum cleaner (not carpet 

sweeper) on needle punch carpet, and a roller type (carpet sweeper) on bouclé or velour carpet. 

EXTRAORDINARY CLEANING STAIN REMOVAL 

For all coverings (carpet excluding) 

- Superficial stains and scaling, cigarette and match burns, etc. can be removed by using gently a fine wire 

wool pad (not on laminate). Then wash with a damp cloth, dry and re-polish (not on laminate). 

For carpet covering: 

- Stain removal of a small area should be carried out by using one of the suitable dry foam stain removers 

(spray) available on the market, referring to the manufacturer’s instructions. It is particularly important that 

any stains should be removed immediately. 

- Dry foam washing is recommended once a year. Not with normal damp carpet cleaner machines. 

Note: 

Nesite does not assume any responsibility for damages due to incorrect uses. 

Nesite reserves the right to change indication without notice. 





51

STRUCTURE : MPH 

alza il livello dell’ambiente 

Closed section stringer 

TECHNICAL DATA 

DIGIT ADJUSTMENT CONFIGURATION 

06 

07 

09 

Min 50mm 

Min 65mm 

Min 75mm 

Max 80mm 

Max 90mm 

Max 115mm 

Low 

Low 

Low 

11 

12 

13 

According to height cm 

Min 100mm 

Min110mm 

Min 110mm 

- 20mm 

Max 120mm 

Max 130mm 

Max 150mm 

+ 20mm 

High 

High 

High 

High 

WEIGHT 

6 Kg / m2 H = 200 mm Extra weight for every further cm of height: 0.028 Kg / cm2 

PEDESTAL AXIAL LOAD (Safety factor ≥ 2) 

LOW 

HIGH 

H mm 65 80 95 105 120 200 300 400 500 600 700 800 900 65 

kN 17.00 17.00 17.00 17.00 17.00 17.00 16.50 16.00 15.50 14.50 12.00 10.00 8.00 17.00 

5 

4 

3 

9 

8 

7 

9 

5 

4 

3 

7 

8 

6 

1 

2 

1 

MPH low MPH low exploded MPH standard MPH standard exploded 

DESCRIPTION REF. MATERIAL PIECES / m 2 

Base + threaded rod M14 1 Galvanized steel 3.3 

Nut M 14 2 Galvanized steel 3.3 

Column Ø 25 x 1.5 mm 3 Galvanized steel 3.3 

Head 4 Galvanized steel 3.3 

Head gasket 5 Conductive polyethylene 3.3 

Internally threaded rod M14 6 Galvanized steel 3.3 

Stringer 7 Galvanized steel 5.9 

Stringer gasket 8 Self-extinguishing polyethylene 5.9 

Fixing screw M5 9 Galvanized steel 12 

Rev.July 2005 



www.nesite.com e-mail : nesite@nesite.com

STRUCTURE : MPH 


Closed section stringer 

DESCRIPTION 

MPH structure is available in two basic configuration : 

1- With nominal height 60, 70 and 90 mm (low configuration); 

2- With nominal height from 110 up to mm (high configuration). 

Pedestal low configuration 

BASE: 2 mm thick galvanized steel plate, diameter 90 mm, with 8 radial stiffening ribs, two of which are 

provided with a hole for the fixing of a self-tapping screw (M5) in case of fastening to the slab. The base is 

coupled with a diameter 14 mm galvanized steel threaded rod (type M14). 

COLUMN: 3 mm thick galvanized steel head, diameter 90 mm, with 4 series of notches, coupled with a 25 mm 

galvanized steel tube 1.5 mm thick, with a M14 internally threaded galvanized steel rod which fits into the 

pedestal base’s rod. 

HEIGHT ADJUSTMENT: obtained by screwing/unscrewing the base’s threaded rod into the column. Locking is 

obtained by use of a thread locking glue (one component adhesive). 

Pedestal high configuration 





galvanized steel tube 1.5 mm thick, tapered on one end to fit into the pedestal base’s rod. 

HEIGHT ADJUSTMENT: obtained by a galvanized steel nut provided with 6 male notches for self-locking with 

the female notches on the column. 

NOTE: the above mentioned components are supplied in two separate packings, assembled as follows: 

− Base + adjusting nut; 

− Column (head + tube). 

Components valid for both low and high configuration 

STRINGER : galvanized steel closed rectangular section tube, 40 x 25 x 1.2 mm. 

STRINGER GASKET : 1 mm thick black self-extinguishing extruded polyethylene C shaped. 

HEAD GASKET: 3 mm thick black conductive polyethylene with electrical resistance 10 4 ohms. It self-locates 

onto the head owing to 4 small protuberances which fit into suitable notches on the head. 

FIXING SCREW : self-tapping galvanized steel M5. 

APPLICATION 

FIELD OF APPLICATION 

Offices, EDPs, control rooms, laboratories and any other industrial application with medium/heavy load 

requirements.. 


− A regular subfloor is necessary; 

− For height of over 600 mm, base glueing is provided for (one component conductive poliurethane adhesive); 

− Earthing by means of connections every 30 m 2 . 

Rev. July 2005 




STRUCTURE : MPL 


Open U section stringer 



03 

04 

06 

07 

09 

Min 30mm 

Min 40mm 

Min 50mm 

Min 65mm 

Min 75mm 

Max 45mm 

Max 55mm 

Max 80mm 

Max 90mm 

Max 115mm 

Low 

Low 

Low 

Low 

Low 

11 

12 

13 


Min 100mm 

Min110mm 

Min 110mm 

- 20mm 

Max 120mm 

Max 130mm 

Max 150mm 

+ 20mm 

High 

High 

High 

High 

WEIGHT 

4.2 Kg / m 2 H = 200 mm Extra weight for every further cm of height: 0.028 Kg / cm 2 


LOW 

HIGH 

H mm 45 65 80 95 105 120 200 300 400 500 600 700 800 900 H 

mm 

kN 17.00 17.00 17.00 17.00 17.00 17.00 16.50 16.00 15.50 14.50 13.50 12.00 10.00 8.00 kN 

5 

4 

3 

9 

8 

7 

9 

5 

4 

3 

7 

8 

6 

1 

2 

1 

MPL low MPL low exploded MPL standard MPL standard exploded 















STRUCTURE : MPL 



DESCRIPTION 

MPL structure is available in two basic configuration : 

1- With nominal height 30, 40, 60, 70 e 90 mm (low configuration); 

2- With nominal height from 110 up to 600 mm (high configuration). 










NOTE: the above mentioned components are supplied already assembled (thread locking glue excluded). 













STRINGER : galvanized steel open U section 15 x 25 x 1 mm. 


HEAD GASKET: 3 mm thick black conductive polyethylene with electrical resistance 10 4 ohms.It self-locates 



APPLICATION 


Offices, EDPs, control rooms, laboratories and any other industrial application with light/medium load 

requirements. 





Rev. july 2005 





PANELS : PLTMV 

Covering : Various 

core : Chipboard 

Core made of a mixture of chipboard and thermosetting resins, 38 mm thick; 

Galvanized steel tray lower side approx. 0.4 mm thick; 

The top surface can be of various covering materials; 

PVC edge trim, 0.45 mm thick, securing air tightness and no squeaking. 

600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

e 

Galvanized steel tray 

a 


TYPE 

COVERING 

Nominal Dimension (mm) 

Weight 

each 

Fire 

Resist 

Fire 

Reaction 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

a b c e Kg REI 

CSE/RF 

Class 

Ω dB W/m °C 

PLTMVA Aluminium ∼38.5 0.05 38 0.5 ∼11 30 1 ≤2x10 10 >32 0.17 

PLTMVV Vinyl ∼40.5 2 38 0.5 ∼12 30 1 ≤2x10 10 >32 0.17/0.384 

PLTMVL Linoleum ∼40.5 2 38 0.5 ∼12 30 1 ≤2x10 10 >32 0.17/0.200 

PLTMVP HPL ∼39.5 ∼1 38 0.5 ∼12 30 1 ≤2x10 10 >32 0.17/0.112 

PLTMVM carpet ∼44.5 6 38 0.5 ∼12 30 1 ≤2x10 10 >32 0.17/0.058 

(1) value for panel with antistatic coverings. For conductive coverings consider 1,5x10 5 ÷ 1x10 7. For other coverings please ask each time. 

MECHANICAL CHARACTERISTICS (Deflection ≤2.5 mm; Safety Factor ≥2) 

STRUCTURE 

Specification CONCENTRATED LOAD kN (2) DISTRIBUTED LOAD kN/m 2 

MPS/L MPM MPH MPO SSH MPS/L MPM MPH MPO SSH 

UNI 10467 3.00 3.50 4.50 5.00 3.80 21.00 23.00 31.00 35.00 23.00 

UNI 10466 2 2 3 3 2 

(2) Load valid at any point of the system. 

For Finished Floor Height FFH more than 750 mm, please verify the real operating condition of the System. 


− Offices, EDPs, control rooms, laboratories, with medium/high load bearing requirements. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material. 






PANELS : PLTMR0 

Covering : Galvanized Steel 



Galvanized steel tray lower side 0.4 mm thick; 

Top surface galvanized steel 0.4 mm thick; 

PVC edge trim, approx. 0.5 mm thick, securing air tightness and no squeaking. 

600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 

Fire 

Reaction 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 


CSE/RF 

class 

Ω dB W/m °C 

PLTMR0 Galvanized steel ∼39 0.5 38 0.5 ∼12.5 30 1 ≤2x10 10 30 0.17 



STRUCTURE 



UNI 10467 3.80 4.60 5.00 6.00 4.60 24.00 26.00 34.00 39.00 26.00 

UNI 10466 2 3 3 3 3 




− Offices, EDPs, control rooms, laboratories, with high load bearing requirements. 


− Suitable for loose lay covering material. 






PANELS : PLTMM-PLTMB 



Core made of chipboard and thermosetting resins, 38 mm thick; 

Aluminium foil lower surface 0.05 mm thick; 



600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

a 

e 

Aluminium foil 


TYPE 

COVERING 


Weight 

each 

Fire Resist 


Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω dB W/m °C 

PLTMBO Aluminium ∼38 0.05 38 0.05 ∼10 45 1 ≤2x10 10 >32 0.17 

PLTMMV Vinyl ∼40 2 38 0.05 ∼11 45 1 ≤2x10 10 >32 0.17/0.384 

PLTMML Linoleum ∼40 2 38 0.05 ∼11 45 1 ≤2x10 10 >32 0.17/0.200 

PLTMMP HPL ∼39 ∼1 38 0.05 ∼11 45 1 ≤2x10 10 >32 0.17/0.112 

PLTMMM carpet ∼44 6 38 0.05 ∼11 45 1 ≤2x10 10 >32 0.17/0.058 



STRUCTURE 



UNI 10467 1.90 2.40 3.40 4.20 2.40 13.00 17.00 23.00 27.00 17.00 

UNI 10466 - 1 2 2 1 




− Offices, EDPs, control rooms, laboratories, with medium load bearing requirements. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material (PLTMB). 






PANELS : PLNAV 




Galvanized steel tray lower side approx. 0.4 mm thick; 



600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

e 


a 


Nominal Dimension (mm) Weight Fire Fire Electrical Acoustic Conductivity 

each Resist Reaction Resistance Insulation (core/cover) 

TYPE COVERING 

(1) 


CSE/RF 

class 

Ω dB W/m °C 

PLNAVA Aluminium ∼28.5 0.05 28 

∼0. 

4 

∼9 15 1 ≤2x10 10 >30 0.17 

PLNAVV Vinyl ∼30.5 2 28 

∼0. 

4 

∼10 15 1 ≤2x10 10 >30 0.17/0.384 

PLNAVL Linoleum ∼30.5 2 28 

∼0. 

4 

∼10 15 1 ≤2x10 10 >30 0.17/0.200 

PLNAVP HPL ∼29.5 ∼1 28 

∼0. 

4 

∼10 15 1 ≤2x10 10 >30 0.17/0.112 

PLNAVM carpet ∼34.5 6 28 

∼0. 

4 

∼10 15 1 ≤2x10 10 >30 0.17/0.058 



STRUCTURE 



UNI 10467 1.70 2.20 3.30 4.00 2.20 12.00 16.00 22.00 26.00 16.00 

UNI 10466 - 1 2 2 1 




− Offices, EDPs, control rooms, laboratories, with light-medium load bearing requirements. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material (PLNAVA). 






PANELS : PLNAR0 





Top surface galvanized steel 0.4 mm thick; 

PVC edge trim, approx. 0.5 mm thick, securing air tightness and no squeaking. 

600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 

Fire 

Reaction 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 


CSE/RF 

class 

Ω dB W/m °C 

PLNAR0 Galvanized steel ∼29 0.5 28 0.5 ∼10 15 1 ≤2x10 10 30 0.17 



STRUCTURE 



UNI 10467 2.30 3.00 4.00 4.80 2.90 17.50 20.00 25.00 29.50 20.00 

UNI 10466 1 2 2 3 2 




− Offices, EDPs, control rooms, laboratories, with medium-high load bearing requirements. 


− Suitable for loose-lay covering material. 






PANELS : PLNAM-PLNAB 



Core made of chipboard and thermosetting resins, 28 mm thick; 




600 

b 

Covering 

600 

ac 

Edge 

Chipboard 

core 

a 

e 



TYPE 

COVERING 


Weight 

each 

Fire Resist 

Fire 

Reaction 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 


CSE/RF 

class 

Ω dB W/m °C 

PLNABO Aluminium ∼28 0.05 28 0.05 ∼7.5 30 - ≤2x10 10 >30 0.17 

PLNAMV Vinyl ∼30 2 28 0.05 ∼8.5 30 1 ≤2x10 10 >30 0.17/0.384 

PLNAML Linoleum ∼30 2 28 0.05 ∼8.5 30 1 ≤2x10 10 >30 0.17/0.200 

PLNAMM carpet ∼34 6 28 0.05 ∼8.5 30 1 ≤2x10 10 >30 0.17/0.058 



STRUCTURE 



UNI 10467 1.00 1.50 2.30 2.80 1.50 7.50 10.00 15.00 17.00 10.00 

UNI 10466 - - 1 1 - 




− Offices, EDPs, control rooms, laboratories, with light-medium load bearing requirements. 


− Suitable for homogeneous vinyl, rubber, linoleum, carpet and loose lay covering material (PLNAB0). 





Core made of a mixture of calcium sulphate and organic fibres, 30 mm thick; 



PVC edge trim 0,6 mm thick, securing air tightness and no squeaking. 

PANELS : PG6AV 


core : Inert Material 

600 

b 

Covering 

600 

ac 

Edge 

Calcium sulphate 

core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 


Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω DB W/m °C 

PG6AVA Aluminium ∼30.4 0.05 30 ∼0.4 ∼16 45 1 ≤2x10 10 >34 0.41 

PG6AVV Vinyl ∼32.4 2 30 ∼0.4 ∼17 45 1 ≤2x10 10 >34 0.41/0.384 

PG6AVL Linoleum ∼32.4 2 30 ∼0.4 ∼17 45 1 ≤2x10 10 >34 0.41/0.200 

PG6AVP HPL ∼31 ∼1 30 ∼0.4 ∼17 45 1 ≤2x10 10 >34 0.41/0.200 

PG6AVM carpet ∼36.4 6 30 ∼0.4 ∼17 45 1 ≤2x10 10 >34 0.41/0.058 



STRUCTURE 



Test UNI 10467 4.00 4.50 5.20 5.60 4.50 24.00 26.00 34.00 39.00 26.00 

Class UNI 10466 2 3 3 3 3 




− Offices, EDPs, control rooms, technical rooms, laboratories, with medium load bearing requirements. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material (PG6AVA). 

 

 

! ""! # $% &'$( )* *+,-,,... /0+,-,,.. 

1212)31%3))$3%)3*')4)3$5)$) 

4442)$6 76*82)92)$6


PANELS : PG6AR0 

Covering : steel 




Galvanized steel sheet on top surface 0.4 mm thick; 

Black plastic semirigid material edge trim 0,6 mm thick, securing air tightness and no squeaking. 

600 

b 

Covering 

600 

ac 

Edge 


core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 


Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω DB W/m °C 

PG6AR0 steel ∼31 ∼0.4 30 ∼0.4 ∼17.5 30 1 ≤2x10 10 34 0.41 



STRUCTURE 


MPS/L MPM MPH MPC SSH MPS/L MPM MPH MPC SSH 

UNI 10467 3.80 4.60 5.00 6.00 4.60 20.00 25.00 30.00 35.00 25.00 

UNI 10466 2 3 3 4 3 






− Suitable for loose lay covering material (carpet) 

Rev. Luglio 2007 section 2.1.11 





PANELS : PG6AM-PG6AB 



Core made of a mixture of calcium sulphate and organic fibres, 30 mm thick, primerized on both upper and lower 

sides (PG6A0); 

It is also available with aluminium foil 0.05 mm thick on underside (PG6AM), or on both upper and lower side 

(PG6AB0); 


600 

b 

Covering 

600 

ac 

Edge 


core 

a 

e 



TYPE 

COVERING 


Weight 

each 

Fire Resist 

Fire 

Reaction 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 


CSE/RF 

class 

Ω dB W/m °C 

PG6A00 Without ∼30 - 30 - ∼16 60 1 ≤2x10 10 >34 0.41 

PG6AM00 Without ∼30 - 30 0.05 ∼16 60 1 ≤2x10 10 >34 0.41 

PG6AB0 Aluminium ∼30 0.05 30 0.05 ∼16 60 1 ≤2x10 10 >34 0.41/0.058 

PG6AMV Vinyl ∼32 2 30 0.05 ∼17 60 1 ≤2x10 10 >34 0.41/0.384 

PG6AML Linoleum ∼32 2 30 0.05 ∼17 60 1 ≤2x10 10 >34 0.41/0.200 

PG6AMP HPL ∼31 ∼1 30 0.05 ∼17 60 1 ≤2x10 10 >34 0.41/0.112 

PG6AMG Rubber 32 2 30 0.05 ∼17 60 1 ≤2x10 10 >34 0.41/0.1 

PG6AMM carpet ∼36 6 30 0.05 ∼17 60 1 ≤2x10 10 >34 0.41/0.058 



Rev. May 2007 

STRUCTURE 



UNI 10467 2.40 3.10 3.80 4.80 3.10 12.00 16.00 22.00 26.00 16.00 

UNI 10466 1 2 2 3 2 




− Offices, EDPs, control rooms, technical rooms with medium/high load bearing requirements and any room with particular fire 

resistance rate. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material (PG6A00-PG6AB0). 





PANELS : PG3AV 







600 

b 

Covering 

600 

ac 

Edge 


core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 


Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω DB W/m °C 

PG3AVA Aluminium ∼34.4 0.05 34 ∼0.4 ∼19 60 1 ≤2x10 10 >38 0.41 

PG3AVV Vinyl ∼36.4 2 34 ∼0.4 ∼20 60 1 ≤2x10 10 >38 0.41/0.384 

PG3AVL Linoleum ∼36.4 2 34 ∼0.4 ∼20 60 1 ≤2x10 10 >38 0.41/0.200 

PG3AVP HPL ∼35 ∼1 34 ∼0.4 ∼20 60 1 ≤2x10 10 >38 0.41/0.200 

PG3AVM carpet ∼40.4 6 34 ∼0.4 ∼20 60 1 ≤2x10 10 >38 0.41/0.058 



STRUCTURE 



UNI 10467 5.00 5.50 6.00 6.50 5.50 29.00 34.00 39.00 45.00 34.00 

UNI 10466 3 3 4 4 3 






− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material (PG3AVA). 

Rev. May 2007 

2.1.13 PG3AV 




PANELS : PG3AR0 


core : Calcium sulphate 

 

 

Core made of a mixture of calcium sulphate and organic fibres, 34 mm thick, galvanized steel tray approx. 0,4 

mm on lower surface and galvanized steel sheet approx. 0,4 mm on top surface. 

Black plastic semirigid edge trim 0,6 mm thick, securing air tightness and no squeaking. 

600 

b 

Covering 

600 

ac 

Edge 


core 

e 


a 


TYPE 

COVERING 


Weight 

each 

Fire Resist 


Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω dB W/m °C 

PG3AR0 Steel sheet ∼35 ∼0,4 34 ∼0,4 ∼20 60 1 ≤2x10 10 >38 0.41 



STRUCTURE 



UNI 10467 5.00 5.50 6.00 6.50 5.50 29.00 34.00 39.00 45.00 34.00 

UNI 10466 3 3 3 4 3 




− Offices, EDPs, control rooms, laboratories, with high load bearing requirements. 


− Suitable for loose lay covering material. 

 

 

!"#$ %%$ & ' (#)* +!,-,,.!! /0+!,-,,.!!! 

1121'22'2)32 

3334 54674


PANNELLO : PG3AB-PG3AM 

rivestimento : Vario 

anima : Inerte 

Anima costituita da una mescola di solfato di calcio e fibre organiche di spessore nominale 34 mm, primerizzata su entrambe le 

superfici (PG3A00). 

Disponibile anche con rivestimento in foglio di alluminio, spessore 0.05 mm, sulla superficie inferiore (PG3AM), e/o su entrambe le 

superfici (PG3AB0). 

Bordo perimetrale in materiale plastico semirigido antiscricchiolio e autoestinguente, spessore 0.6 mm. 

600 

b Rivestimento superiore 

600 

a 

Bordo 

perimetrale 

c 

Anima in 

solfato di calcio 

a 

e 

Rivestimento inferiore 

DATI TECNICI 

TIPO 

RIVESTIMENTO 

SUPERIORE 

Dimensioni nominali (mm) 

Peso 

cad. 

Resistenza 

al fuoco 

a b c e kg REI 

Reazione 

al fuoco 

CSE/RF 

classe 

Resistenz 

a elettrica 

(1) 

Potere 

fonoisolante 

Conduttività 

termica λ 

(anima/rivest.) 

Ω dB W/m °C 

PG3A00 senza ∼34 - 34 - ∼18 90 1 ≤2x10 10 >38 0.41 

PG3AM0 senza ∼34 - 34 0.05 ∼18 90 1 ≤2x10 10 >38 0.41 

PG3AB0 alluminio ∼34 0.05 34 0.05 ∼18 90 1 ≤2x10 10 >38 0.41/0.058 

PG3AMV vinile ∼36 2 34 0.05 ∼19 90 1 ≤2x10 10 >38 0.41/0.384 

PG3AML linoleum ∼36 2 34 0.05 ∼19 90 1 ≤2x10 10 >38 0.41/0.200 

PG3AMG gomma ∼36 2 34 0.05 ∼19 90 1 

>10 10 

antistatico 

>38 0.41/0.100 

PG3AMP laminato ∼35 ∼1 34 0.05 ∼19 90 1 ≤2x10 10 >38 0.41/0.112 

PG3AMM moquette ∼40 6 34 0.05 ∼19 90 1 ≤2x10 10 >38 0.41/0.058 

(1) valori relativi ai rivestimenti antistatici. Per rivestimenti conduttivi considerare 1.5x10 5 ÷ 1x10 7 . Per altri rivestimenti contattare i ns. servizi tecnici. 

RESISTENZA MECCANICA (Freccia ≤2.5 mm; Coefficiente sicurezza ≥2) 

STRUTTURA 

Specifica CARICO CONCENTRATO kN (2) CARICO DISTRIBUITO kN/m 2 


Prova UNI 10467 3.00 3.80 4.50 5.20 3.80 23.00 27.00 31.00 35.00 27.00 

Classe UNI 10466 2 2 3 3 2 

(2) Dati di carico valevoli su qualsiasi punto del sistema. 

Per altezze oltre 750 mm si raccomanda di verificare le reali condizioni d’ impiego del sistema 

CAMPI D’ IMPIEGO 

− Uffici, CED, sale di controllo, laboratori, con requisiti di carico medio/pesante ed una elevata resistenza al fuoco. 

NOTE D’IMPIEGO 

− Idoneo per rivestimenti in vinile omogeneo, gomma, linoleum, laminato plastico, moquette e coperture autoposanti (PG3A00 – 

PG3AB0). 

Rev.: maggio 2007 


NESITE S.p.A. si riserva la facoltà di modificare i dati senza darne preavviso 


STRUCTURE : 

MPS 


Without stringers 

DESCRIPTION 

MPS structure is available in two basic configuration : 

1- With nominal height 30, 40, 60, 70 e 90 mm (low configuration); 



BASE: 2 mm thick galvanized steel plate, diameter 90 mm, with 8 radial stiffening ribs, two of which are provided 

with a hole for the fixing of a self-tapping screw (M5) in case of fastening to the slab. The base is coupled with a 

diameter 14 mm galvanized steel threaded rod (type M14). 



















HEAD GASKET: 3 mm thick black conductive polyethylene with electrical resistance 10 4 ohms.It self-locates 


BASE GLUE : one component conductive poliurethane adhesive. 

THREAD LOCKING GLUE: one component adhesive. 

APPLICATION 


Offices, EDPs, control rooms, laboratories and any other industrial application with light/medium load 

requirements. 



− The base must be glued to the subfloor (with poliuretanic and conductive one component glue); 

− The height adjustment nut must be locked by use of a few drops of thread locking glue. 





STRUCTURE : MPS 


Without stringers 



03 

04 

06 

07 

09 

Min 30mm 

Min 40mm 

Min 50mm 

Min 65mm 

Min 75mm 

Max 45mm 

Max 55mm 

Max 80mm 

Max 90mm 

Max 115mm 

Low 

Low 

Low 

Low 

Low 

11 

12 

13 


Min 100mm 

Min110mm 

Min 110mm 

- 20mm 

Max 120mm 

Max 130mm 

Max 150mm 

+ 20mm 

High 

High 

High 

High 

WEIGHT 

2 Kg / m 2 H = 200 mm Extra weight for every further cm of height: 0.028 Kg / m 2 


LOW 

HIGH 

H mm 45 65 80 95 105 120 200 300 400 500 600 

kN 17.00 17.00 17.00 17.00 17.00 17.00 16.50 16.00 15.50 14.50 13.50 

5 

4 

5 

4 

3 

3 

6 

1 

2 

MPS low MPS low exploded MPS standard MPS standard exploded 

1 

DESCRIPTION REF. MATERIAL PIECES m 2 











STRUCTURE : 

MPO 


Closed omega stringer 

DESCRIPTION 

MPO structure is available in two basic configuration: 

1- With nominal height 70, 80, 100, 110 and 130 mm mm (low configuration); 

2- With nominal height from 150 up to 935 mm mm (high configuration). 


BASE: galvanized steel plate, diameter 90 mm with 8 radial stiffening ribs (two of which are provided with a hole 

for the fixing of a self-tapping screw in case of fastening to the slab. The base is coupled with a diameter 14 mm 

galvanized steel threaded rod (type M14). 

COLUMN: galvanized steel head, diameter 90 mm, with 4 series of notches, coupled with a 25 mm galvanized 

steel tube, with a M14 internally threaded galvanized steel rod which fits into the pedestal base’s rod. 



NOTE: the above components are supplied already assembled (thread locking glue not included). 


BASE: galvanized steel plate, diameter 90 mm, with 8 radial stiffening ribs, two of which are provided with a hole 

for the fixing of a self-tapping screw (M5) in case of fastening to the slab. The base is coupled with a diameter 14 

mm galvanized steel threaded rod (type M14). 

COLUMN: galvanized steel head, diameter 90 mm, with 4 series of notches, coupled with a 25 mm galvanized 

steel tube, tapered on one end to fit into the pedestal base’s rod. 



NOTE: the above components are supplied in 2 separated packing, assembled as following: 

− Base + adjustement nut; 

− column (tube + head). 

Components valid for both low and high configuration: 

STRINGER : galvanized steel omega closed section tube, height 39 mm, large 25 mm, on the base side large 39 

mm, thickness 1,2 mm, supplied in due sizes: 560mm and 1800 mm. 

STRINGER GASKET : 1 mm thick black conductive extruded polyethylene C shaped. 

CROSS GASKET : 2 mm thick black conductive extruded polyethylene C shaped, with electrical resistance 10 4 

ohms. It self- locates onto the cross of the stringers. 

HEAD GASKET : 3 mm thick black conductive extruded polyethylene C shaped, with electrical resistance 10 4 

ohm. 


FIXING PLATE : 1,5 mm thick galvanized steel plate. 

APPLICATION 

Offices, EDPs, control rooms, laboratories and any other industrial application with heavy load requirements. 





Rev.: July 2005 




STRUCTURE : 

MPO 


Closed omega stringer 



07 

08 

10 

11 

13 

15 

16 

17 


TOTAL WEIGHT STRUCTURE 

Min 70mm 

Min 80mm 

Min 90mm 

Min 105mm 

Min 115mm 

Min 140mm 

Min150mm 

Min 150mm 

- 20mm 

Max 85mm 

Max 95mm 

Max 120mm 

Max 130mm 

Max 155mm 

Max 160mm 

Max 170mm 

Max 190mm 

+ 20mm 

Low 

Low 

Low 

Low 

Low 

High 

High 

High 

High 

8.2 Kg / m 2 H = 200 mm Extra weight for every further cm of height: 0.028 Kg / cm 


LOW 

HIGH 

H mm 75 100 115 130 140 150 200 300 400 500 600 700 800 935 

kN 17.00 17.00 17.00 17.00 17.00 17.00 16.50 16.00 15.50 14.50 13.50 12.00 10.00 

8.00 

8 

10 9 

6 

8 

10 

5 

9 

7 

4 

6 

5 

12 

7 

4 

3 

12 

3 

11 

1 

2 

1 

MP Omega bassa 

MP Omega bassa: esploso 

MP Omega alta 

MP Omega alta: esploso 

DESCRIPTION REF. MATERIAL PIECES PER m 2 

Base 1 Galvanized steel 3.3 


Tube Ø 25 3 Galvanized steel 3.3 


Stringer 560 mm 5 Galvanized steel 3.5 

Stringer 1800 mm 6 Galvanized steel 1.0 

Stringer gasket 7 Self extinguishing polyethylene 5.9 

Cross gasket 8 Conductive polyethylene 3.3 

Fixing screw M5 9 Galvanized steel 13.2 

Fixing plate 10 Galvanized steel 13.2 

Bush M14 11 Galvanized steel 3.3 






STRUCTURE : MPM 



DESCRIPTION 

MPM structure is available in two basic configuration : 

1- With nominal height 60, 70 e 90 mm (low configuration); 
























STRINGER : galvanized steel open U section 30 x 25 x 1 mm. 


HEAD GASKET: 3 mm thick black conductive polyethylene with electrical resistance 10 4 ohms. It self-locates 



APPLICATION 


Offices, EDPs, control rooms, laboratories and any other industrial application with medium load requirements.. 









STRUCTURE : MPM 





06 

07 

09 

Min 50mm 

Min 65mm 

Min 75mm 

Max 80mm 

Max 90mm 

Max 115mm 

Low 

Low 

Low 

11 

12 

13 


Min 100mm 

Min110mm 

Min 110mm 

- 20mm 

Max 120mm 

Max 130mm 

Max 150mm 

+ 20mm 

High 

High 

High 

High 

WEIGHT 

4.5 Kg / m 2 H = 200 mm Extra weight for every further cm of height: 0.028 Kg / cm 2 


LOW 

HIGH 

H mm 45 65 80 95 105 120 200 300 400 500 600 700 800 900 

kN 17.00 17.00 17.00 17.00 17.00 17.00 16.50 16.00 15.50 14.50 13.50 12.00 10.00 8.00 

5 

4 

3 

9 

8 

7 

9 

5 

4 

3 

8 

7 

6 

1 

2 

1 

MPM low MPM low exploded MPM standard MPM standard exploded 
















PANELS : PW4AM-PW4AB 


core : Chipboard + 

Inert Material 

Core made of a mixture of chipboard and thermosetting resins, 28 mm thick matched to a calcium sulphate and 

organic fibres board 12.5 mm thick; 



It is also available with aluminium foil 0.05 mm thk on both upper and lower sides (PW4AB0).; 


600 

b 

Covering 

600 

a 

Edge 

c 

Chipboard 

core 

e 


d 


core 

a 


TYPE 

COVERING 


Weight 

each 

Fire 

Resist 

a b c d e Kg REI 

Fire 

Reaction 

CSE/RF 

class 

Electrical 

Resistance 

(1) 

Acoustic 

Insulation 

Conductivity 

(core/cover) 

Ω dB W/m °C 

PW4AB0 Aluminium ∼40.5 0.05 28 12.5 0.05 ∼13.5 60 1 ≤2x10 10 >34 0.17/0.41 

PW4AMV Vinyl ∼42.5 2 28 12.5 0.05 ∼14 60 1 ≤2x10 10 >34 0.17/0.41/0.384 

PW4AML Linoleum ∼42.5 2 28 12.5 0.05 ∼14 60 1 ≤2x10 10 >34 0.17/0.41/0.200 

PW4AMP HPL ∼41.5 ∼1 28 12.5 0.05 ∼14 60 1 ≤2x10 10 >34 0.17/0.41/0.112 

PW4AMM carpet ∼46.5 6 28 12.5 0.05 ∼14 60 1 ≤2x10 10 >34 0.17/0.41/0.058 



STRUCTURE 



UNI 10467 2.30 2.80 4.00 4.80 2.80 16.00 19.00 25.00 30.00 19.00 

UNI 10466 1 1 2 3 1 




− Offices, EDPs, control rooms, laboratories, with medium load bearing requirements and any room with high fire resistance rate. 


− Suitable for homogeneous vinyl, rubber, linoleum, plastic laminate, carpet and loose lay covering material.

MASTER BOOK – SECTION 1 Rev. 2007 - EKA Group

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