European Technical Approval ETA-06/0157 - ETA-Danmark

ETA-Danmark A/S 

Kollegievej 6 

DK-2920 Charlottenlund 

Tel. +45 72 24 59 00 

Fax +45 72 24 59 04 

Internet www.etadanmark.dk 

Authorised and notified according to 

Article 10 of the Council Directive 

89/106/EEC of 21 December 1988 on 

the approximation of laws, regulations 

and administrative provisions of 

Member States relating to construction 

products 

European Technical Approval ETA-06/0157 

MEMBER OF EOTA 

This ETA is a renewal of the previous ETA with the same number and validity from 2006-09-06 to 2011-09-06 

Trade name: 

Holder of approval: 

Generic type and use of construction 

product: 

Valid from: 

to: 

Manufacturing plant: 

This European Technical 

Approval contains: 

DERBIGUM SP 4 FR single layer roof-waterproofing 

kit and DERBICOLOR 4 WSL single layer roofwaterproofing 

kit 

Imperbel S. A. 

Parc Industriel 

B-1360 Perwez 

Tel. +32 81 65 44 11 

Fax +32 81 65 43 09 

Single layer mechanically fastened roof-waterproofing 

kit 

2011-09-06 

2016-09-06 

Imperbel S. A. 

Parc Industriel 

B-1360 Perwez 

23 pages including 4 Annexes which form an integral 

part of the document

I LEGAL BASIS AND GENERAL 

CONDITIONS 

Page 2 of 23 of European Technical Approval no. ETA-06/0157 

1 This European Technical Approval is issued by 

ETA-Danmark A/S in accordance with: 

- Council Directive 89/106/EEC of 21 December 

1988 on the approximation of laws, regulations 

and administrative provisions of Member States 

relating to construction products 1) , as amended by 

Council Directive 93/68/EEC of 22 July 1993 2) . 

- Bekendtgørelse 559 af 27-06-1994 (afløser 

bekendtgørelse 480 af 25-06-1991) om ikrafttræden 

af EF direktiv af 21. december 1988 om 

indbyrdes tilnærmelse af medlemsstaternes love 

og administrative bestemmelser om byggevarer. 

- Common Procedural Rules for Requesting, 

Preparing and the Granting of European Technical 

Approvals set out in the Annex to Commission 

Decision 94/23/EC 3) . 

- Guideline for European Technical Approval of 

Mechanically fastened roof-waterproofing kits, 

ETA-Guideline N o 006, Edition March 2000. 

2 ETA-Danmark A/S is authorized to check whether 

the provisions of this European Technical 

Approval are met. Checking may take place in the 

manufacturing plant. Nevertheless, the responsibility 

for the conformity of the products to the 

European Technical Approval and for their fitness 

for the intended use remains with the holder of 

the European Technical Approval. 

3 This European Technical Approval is not to be 

transferred to manufacturers or agents of manufacturers 

other than those indicated on page 1, or 

manufacturing plants other than those indicated 

on page 1 of this European Technical Approval. 

4 This European Technical Approval may be 

withdrawn by ETA-Danmark A/S pursuant to 

Article 5(1) of Council Directive89/106/EEC. 

1) Official Journal of the European Communities N o L40, 11 Feb 1989, p 12. 

2) Official Journal of the European Communities N o L220, 30 Aug 1993, p 1. 

3) Official Journal of the European Communities N o L 17, 20 Jan 1994, p 34. 

5 Reproduction of this European Technical Approval 

including transmission by electronic means shall be 

in full. However, partial reproduction can be made 

with the written consent of ETA-Danmark A/S. In 

this case partial reproduction has to be designated as 

such. Texts and drawings of advertising brochures 

shall not contradict or misuse the European Technical 

Approval. 

6 This European Technical Approval is issued by 

ETA-Danmark A/S in Danish. 

This version corresponds fully to the version circulated 

within EOTA. Translations into other languages 

have to be designated as such.


II SPECIAL CONDITIONS OF THE 

EUROPEAN TECHNICAL APPROVAL 

1 Definition of product and intended use 

Description of the kit 

DERBIGUM SP 4 FR is a single layer mechanically fastened roof-waterproofing kit, which consists of a membrane 

and a specified fastening system. The membrane is fastened through an insulation material into the substrate. 

DERBICOLOR 4 WSL is a single layer mechanically fastened roof-waterproofing kit, which consists of a membrane 

and a specified fastening system. The membrane is fastened through an insulation material into the substrate. 

The mineral wool boards are not part of the kit. 

DERBIGUM SP 4 FR and DERBICOLOR 4 WSL are also placed on the market with the designation DERBIGUM 

SP 4 FM and DERBICOLOR 4 FM respectively. 

Membranes 

DERBIGUM SP 4 FR is a membrane made from polymer modified bitumen (APP) with a double-layer reinforcement 

in the top layer of the membrane of approx. 150 g/m 2 non-woven polyester felt and 55 g/m 2 fibreglass. DERBIGUM 

SP 4 FR has a total thickness of 4 mm and a weight of 4,3 kg/m 2 . Standard width is 1,10 m. 

DERBICOLOR 4 WSL is a membrane made from polymer modified bitumen (APP) with reinforcement complex in 

the middle layer of the membrane of approx. 210 g/m 2 non-woven polyester felt and fibreglass. DERBICOLOR has a 

total thickness of 4 mm and a weight of 5,3 kg/m 2 . Standard width is 1,10 m. 

The membranes are supplied in roll form 

The different membranes and fasteners which can compose the mechanically fastened flexible roof waterproofing 

membrane kit (in the following referred to as MEFAWAME) and their properties are presented in Annexes 1 and 

2. The holder of the ETA is fundamentally responsible of the MEFAWAME. The flexible membranes which 

constitute the MEFAWAME are exclusively distributed by Imperbel S.A, subsidiary companies and distributors. 

Fasteners 

The different fasteners, manufactured by different manufacturers (SFS INTEC or LR ETANCO), depend on the 

substrate: 

Profiled metal decking substrate (standard) 

• screw IR2 4.8xL + plate IR 82x40 (manufacturer SFS INTEC) 

• screw IR2S 4.8xL + plate IR 82x40 (manufacturer SFS INTEC) 

• screw EHBDF2C 4.8xL + plate 82x40R DF (manufacturer LR ETANCO) 

• screw EVDF2C 4.8xL + plate 82x40R DF (manufacturer LR ETANCO) 

• screw EVDF2C 4.8xL + plate 82x40R SC (manufacturer LR ETANCO) 

• screw VMS2C 4.8xL + plate 82x40R DF (manufacturer LR ETANCO) 

• screw EVF2C 4.8xL + plate 82x40 R DF (manufacturer LR ETANCO) 

• screw EVF2C 4.8xL + plate 82x40R SC (manufacturer LR ETANCO) 

• screw ISODRILL TT + plate Etancoplast T80x40 (manufacturer LR ETANCO) 

• screw EGB2C 4.8XL + plate Etancoplast T80x40 (manufacturer LR ETANCO) 

• screw ISODRILL TT + plate 82x40R DF (manufacturer LR ETANCO) 

• screw ISODRILL TH DF + plate 82x40R DF (manufacturer LR ETANCO)


Perforated Profiled metal decking substrate (acoustic) 

• screw IFP2 6.7xL + plate IRP 82x40 (manufacturer SFS INTEC) 

• screw TPR 6.3xL + IRD 82x40 (manufacturer SFS INTEC) 

• screw FASTOVIS 3036 TF DF + plate 82x40R DF (manufacturer LR ETANCO) 

• rivet PER/RER + 82x40R DF (manufacturer LR ETANCO) 

Concrete substrate 

• screw TI 6.3xL + plate IRD 82x40 (manufacturer SFS INTEC) 

• nail DT 6.3xL + plate IRD 82x40 (manufacturer SFS INTEC) 

• screw TI 6.3xL + plate IF/IG C 82x40 (manufacturer SFS INTEC) 

• screw BETOFAST TH 3C + plate 82x40R (manufacturer ETANCO) 

• screw BETOFAST TH DF 3C + plate 82x40R (manufacturer ETANCO) 

• screw BETOFAST TT 2C + plastic sleeve ETANCOPLAST T80x40 (manufacturer ETANCO) 

• nail NAILFIX CH + plate 82x40 R SC (manufacturer LR ETANCO) 

Lightweight concrete substrate 

• screw IGR S 8.0xL + plate IG8 C 82x40 (manufacturer SFS INTEC) 

• screw MULTIFAST TB INOX A2 + 80x40R (manufacturer LR ETANCO) 

Wood substrate 

• screw IG 6.0xL + plate IRD 82x40 (manufacturer SFS INTEC) 

• screw IWT 5.0xL + plate IRC/W 82x40 (manufacturer SFS INTEC) 

• screw EVF2C 4.8xL + plate 82x40R SC (manufacturer LR ETANCO) 

• screw EVDF2C 4.8xL + plate 82x40R DF (manufacturer LR ETANCO) 

• screw EVDF 2C 4.8xL + plate 82x40R SC (manufacturer LR ETANCO) 

• screw MULTIFAST TF + plate 80x40R (manufacturer LR ETANCO) 

All the fasteners conform to the specifications of the ETAG 006(see Note). 

The flexible membranes and the fasteners are commercialised in separate transactions and assembled on site. 

The means of fastening are presented in annex 4. 

The insulation material is fastened in the centre of each insulation panel with fasteners. The number of fasteners 

or fasteners and the type are defined in the National Regulations and /or product certificates for the insulation 

materials. 

Note In addition to the list of fasteners, other fasteners may also be used unless they are covered by a valid 

ETA and with rectangular plate with dimensions of 82 × 40 (as example, the fasteners of the ETA 08/0285 from 

AFAST BV – Guardian Fastening System- with plate size 82 × 40) 

Insulation 

The wind uplift test has been performed on a mineral wool substrate with compressibility at 10% of 50 kPa and 

point load behaviour of 120 kPa, deformation 5 mm, and the values are valid for other insulation materials with 

the same thickness (0 mm – 350 mm) and equal or higher compressibility and point load behaviour. The 

insulation material is not part of the kit. The use of the insulation board as substrate for mechanically fastened 

roof waterproofing is defined in national provisions. 

Intended use 

DERBIGUM SP 4 FR and DERBICOLOR 4 WSL single layer roof waterproofing kit is used for waterproof covering 

for sloped or flat roofs. The kits are specially designed for mechanical fastening. 

The load bearing elements are made from steel, concrete, lightweight concrete or wood. The MEFAWAME can be 

installed directly on the substrate or on an insulation material. In the latter case the insulation material shall comply 

with the requirements mentioned above.


In the manufacturer's technical dossier (MTD) 4 to this European technical approval (ETA) the manufacturer has 

given information concerning the substrate, which the roof waterproofing is suitable for and on how these 

substrates shall be pre-treated. 

Assumed working life 

The tests and assessment have been based on the assumption that the working life of DERBIGUM SP 4 FR and 

DERBICOLOR 4 WSL single layer roof waterproofing kits for the above described intended use is at least 10 years. 

This cannot be understood as a guarantee given by Imperbel S.A, subsidiary companies and distributors or ETA- 

Danmark A/S. 

4 The manufacturer's technical dossier (MTD) comprises all information necessary for the production and the processing of the 

product as well as for the repair of the roof waterproofing made from that. It was checked by ETA-Danmark A/S and it was found 

to be in accordance with the conditions stated in the approval and the characteristic values determined during the approval testing


2 Characteristics of product and assessment 

Characteristics of products and systems 

The components of the roof waterproofing kit show the characteristic values with respect to the permissible 

tolerances which are stated in the MTD 5 to this ETA. 

The chemical composition and the characteristic property values of the components of the kit and the 

manufacturing methods are confidential and deposited with ETA-Danmark A/S. 

The ETA is issued for the kit on the basis of the product composition deposited with ETA-Danmark A/S. 

Changes to the components of the kit or in the production process of the components, which could result in the 

production process and/or the properties of the product deposited being incorrect should be notified to ETA- 

Danmark A/S before the changes are introduced. ETA-Danmark A/S will decide whether or not such changes 

affect the ETA and consequently the validity of the CE marking on the basis of the ETA and if so whether further 

assessment/alterations to the ETA shall be necessary. 

The performances of the membranes, the fasteners and the kits are presented in Annexes 1, 2 and 3. 

Methods of verification 

Assessment of the fitness of the roof waterproofing for the intended use with regard to the essential requirements 

N° 2 to N° 4 was performed following the "Guideline for European Technical Approval of systems of 

mechanically fastened flexible roof waterproofing membranes" (ETAG 006). 

According to the manufacturer's declaration the roof waterproofing taking account of the EU database 6 does not 

contain any dangerous or forbidden substances. 

5) The manufacturer's technical dossier (MTD) comprises all information necessary for the production and the processing of the 

product as well as for the repair of the roof waterproofing made from that. It was checked by ETA-Danmark A/S and it was found 

to be in accordance with the conditions stated in the approval and the characteristic values determined during the approval testing. 

6) In accordance with http://europa.eu.int-/comm/enterprise/construction/internal/dangsub/dangmain.htm In addition to the specific 

clauses relating to dangerous substances contained in this European Technical Approval, there may be other requirements 

applicable to the products falling within its scope (e.g. transposed European legislation and national laws, regulations and 

administrative provisions). In order to meet the provisions of the EU Construction Products Directive, these requirements need also 

to be complied with, when and where they apply.


3 Attestation of Conformity and CE marking 

3.1 Attestation of Conformity system 

The attestation of conformity applied to this product specified by the European Commission in Mandate Construct 

98/143EC of February 1998, Annex 3 is System 2+ and provides: 

a) Tasks for the manufacturer: 

(1) Initial type testing of the product 

(2) Factory production control, 

b) Tasks for the notified body: 

(1) Initial inspection of factory and of factory production control (FPC) 

(2) Continuous surveillance, assessment and approval of factory production control 

3.2 Responsibilities 

3.2.1 Tasks for the manufacturer 

3.2.1.1 Factory production control. 

The manufacturer of the membrane has a factory production control system in the plant and exercises permanent 

internal control of production. All the elements, requirements and provisions adopted by the manufacturer are 

documented in a systematic manner in the form of written policies and procedures. This production control system 

ensures that the product is in conformity with the European Technical Approval. 

The manufacturers of the fasteners have a factory production control system in the plant and exercises permanent 

internal control of production. All the elements, requirements and provisions adopted by the manufacturer are 

documented in a systematic manner in the form of written policies and procedures. This production control system 

ensures that the product is in conformity with the European Technical Approval. 

The manufacturer of membranes and fasteners may only use raw materials or components stated in the technical 

documentation of this European technical approval. 

The factory production control shall be in accordance with the "Control Plan” relating to the European technical 

approval ETA - which is part of the technical documentation of this European technical approval. The "Control 

Plan" is laid down in the context of the factory production control system operated by the manufacturer and 

deposited at ETA-Danmark A/S. 7 

The results of factory production control shall be recorded and evaluated in accordance with the provisions of the 

"Control Plan". 

The results of factory production control are recorded and evaluated. The records include at least the following 

information: 

• Designation of the product, basic material and components; 

• Type of control or testing; 

• Date of manufacture of the product and date of testing of the product or basic material and components; 

• Result of control and testing and, if appropriate, comparison with requirements; 

• Signature of person responsible for factory production control. 

The records shall be presented to ETA-Danmark A/S on request 

3.2.1.2 Initial type testing of the product 

7 The "control plan" is a confidential part of the European technical approval and only handed over to the approved body or bodies 

involved in the procedure of attestation of conformity. See section 3.2.2.


For initial type-testing the results of the tests performed as part of the assessment for the European Technical 

Approval shall be used unless there are changes in the production line or plant. In such cases the necessary initial type 

testing has to be agreed between ETA-Danmark A/S and the manufacturer. 

3.2.1.3 Other tasks of the manufacturer 

The manufacturer shall, on the basis of a contract, involve a body which is notified for the tasks referred to in section 

3, in the field of the product in order to undertake the actions laid down in section 3.2.2. For this purpose, the control 

plan referred to in section 3.2.2 shall be handed over by the manufacturer to the notified body involved. 

3.2.2 Tasks of notified bodies 

3.2.2.1 Initial inspection of factory and production control. 

ETA-Danmark A/S ascertains that, in accordance with the MTD, factory conditions and production control allow 

the manufacturer to ensure the consistency and homogeneity of the manufactured product and its traceability, 

thus guaranteeing that the final characteristics of the product are those indicated in chapter 2. 

3.2.2.2 Continuous surveillance, assessment and approval of Factory Production Control 

The Notified Body shall visit the factory of flexible membranes at least once a year. 

Surveillance of the manufacturing processes shall include: 

• Checking the documentation of factory production control, to ensure continuing compliance with the 

provisions of the ETA, 

• Identification of changes by comparing data obtained during the initial inspection or during the last 

inspection. 

In the event the ETA provisions are not complied with, the certificate of conformity shall be withdrawn and 

ETA-Danmark A/S will be informed without delay. 

3.3 CE Marking 

The CE marking shall be affixed on the kit, components itself/themselves, an attached label, the packaging, or the 

accompanying commercial document. 

The required information to accompany the symbol ‘’CE’’ is: 

• name or identifying name of the producer 

• number of the notified body 

• last two digits of the year in which the CE marking was affixed 

• Number of the certificate of conformity of the Factory Production Control (System 2+) 

• number of the ETA 

• ETAG 006 

The components shall be marked as belonging to the kit DERBIGUM SP 4 FR or DERBICOLOR 4 WSL.


4 Assumptions under which the fitness of the product for the intended use was favourably 

assessed 

4.1 Installation and design 

Annex 4 contains detailed information on installation and design. The information comprises the following: 

Principle sketches: 

• type of mechanical fastening of membranes 

• type of arranging of fasteners at upstands and penetrations 

Membrane: 

Seam overlap according to detailing 

Fastening: 

Design of fastener spacing and areas according to national requirements 

Spacing of fasteners (according to kind of fastening) 

Design of perimeter and edge fixation 

Fastening to supporting construction 

Design principles of up-stands and flashings 

Design principles of penetrations fastening of installed parts/units according to national requirements 

The flexible membranes manufacturer’s installation guide forms part of this ETA. 

The design of the roof intended to be covered by the mechanically fastened roof waterproofing system should 

take account of the following factors: 

• Dead and imposed loads 

• Design wind pressure 

• Structural strength, stiffness and deflection limits 

• Attachment of the roof deck to the structural framing 

• Provision of insulation 

• Assessment of condensation risk and provision of vapour control layers 

• Sound insulation 

• Fire precautions 

• Roof attachments, fixtures and penetrations 

• Falls and drainage 

• Means of access for inspection and maintenance 

4.2 Substrates 

The substrate onto which the waterproofing kit is to be laid should be sufficiently rigid, dense, and dimensionally 

stable to support the system (membrane +insulation). Its nature will depend on the type of roof selected (warm 

deck, cold deck or inverted) and in turn will have a direct influence on the method of attachment. 

In order to support the loads imposed by traffic, insulation materials for use in warm decks should be capable of 

resisting permanent deformation or damage when subjected to concentrated loads. They should have a dust-free 

surface and sufficient laminar strength to resist with a margin of safety and stress imposed by wind uplift forces.


It shall be ensured that the insulation material on site has a 10% compression of at least 50 kPa and a point load 

behaviour of 120 kPa, deformation 5 mm. The use of the insulation board as substrate for mechanically fastened 

roof waterproofing is defined in national provisions. 

4.3 Flexible membranes manufacturer’s responsibilities 

It is the manufacturer's responsibility to make sure that all those who use the kit are appropriately informed about 

the specific conditions according to sections 1, 2, 4, and 5 including the annexes to this ETA and the not 

confidential parts of the MTD to this ETA. 

5 Recommendations 

5.1 Packaging, transport and storage 

This product is neither toxic nor inflammable, so it is not necessary to follow any safety instructions for transport 

and handling. 

Rolls must always be stored vertically. 

The product must keep away from any source of heat, sparks, flame, etc. 

5.2 Maintenance and repair of the works 

The assessment of the fitness for use is based on the assumption that a normal maintenance of the system is 

performed. 

This maintenance shall include: 

• inspections of the roof at regular interval, e.g. twice a year. This inspection should include: 

o cleaning of downpipes and leaf filters 

o removal of stones, branches and leafs… 

o inspection of flashings along the edge of the roof, chimneys, drains and roof lights 

o removal of organic growths such as vines 

• Flashings to chimneys, roof edges, skylights, caps, drains etc. should be inspected every 5 years and 

corrected or replaced if necessary 

• Abrasion and minor impact damage shall be repaired. 

When replacing components they shall be approved by the manufacturer and covered by the ETA. 

Thomas Bruun 

Manager, ETA-Danmark A/S


Annex 1 

Characteristics of membranes (manufacturers declared values) 

MEMBRANE Expression of result DERBIGUM SP4 DERBICOLOR 4 

WSL 

Reference 

Reaction to fire Euroclass Euroclass E Euroclass F EN 13501-1 

Peel resistance of joint MDV(±20%) 60 N/50 mm 90 N/50 mm EN 12316-1 

Shear resistance of joint MDV (±10%) 560 N/50 mm 950 N/50 mm EN 12317-1 

Tear resistance (nail) Long 

MDV(±20%) 

200 N 

300 N 

EN 12310-1 

Trans 

MDV(±20%) 

200 N 

300 N 

Cold bending MLV -15 °C -18 °C EN 1109 

Water pressure No leakage Pass Pass EN 1928 

Tensile properties Long 

(MDV ± 20 %) 

700 N/50 mm 1000 N/50 mm EN 12311-1 

Trans 

650 N/50 mm 1000 N/50 mm 

Elongation 

(MDV ± 20 %) 

Long 

(MDV ± 15) 

45 % 

18 % 

Trans 

(MDV ± 15) 

45 % 

18 % 

Static loading resistance MLV 

20 kg 

20 kg 

EN 12730 

Impact loading resistance MLV 

Peel resistance after After heat 

ageing 

After water: 

Shear resistance after After heat 

ageing 

Cold bending After heat 

After UV 

Dimensional stability Long 

MLV 

Trans 

MLV 

∅ 15 mm 

Max ∆ 20 % 

∅ 15 mm 

Max ∆ 20 % 

EN 12691 

EN 12316-1 

Max ∆ 20 % Max ∆ 20 % 

Max ∆ 20 % Max ∆ 20 % EN 12317-1 

Max ∆ 15 °C 

Max ∆ 15 °C 

0,2 % 

0,2 % 

Max ∆ 15 °C 

Max ∆ 15 °C 

0,3 % 

0,3 % 

EN 1109 

EN 1107-1

Type 

ETAG Paragraph 

IR2 4,8 × L + IR 82 × 40 

SFS INTEC 

IR2S 4,8 × L + IR 82 × 40 

SFS INTEC 

EHBDF2C 4.8xL + 82x40R DF 

LR ETANCO 

EVDF2C 4.8xL + 82x40R DF 


EVDF2C 4.8xL + 82x40R SC 


VMS2C 4.8xL + 82x40R DF 


EVF2C 4.8xL + 82x40R SC 


EVF2C 4.8xL + 82x40R DF 


ISODRILL TT + Etancoplast 

T80x40 


EGB2C 4.8xL + Etancoplast 

T80x40 


ISODRILL TT + 82x40 R DF 


ISODRILL TH DF + 82x40 R DF 



5.3.4.1 

Axial 

loading 

test 

(N) 

Annex 2 

Characteristics of fasteners 

5.3.4.2 

Unwinding 

5.3.4.3 

Mechanical 

resistance of 

sleeve 

5.3.7.1 

Resistance to 

corrosion of 

metallic 

fastenings, 

15 Kesternich 

cycles 

5.3.7.2 

Mechanical 

resistance after 

heat ageing of 

plastic 

fastenings 

Profiled steel deck 

1450 Pass Not relevant Pass (

Type 


ETAG Paragraph 

IFP2 6,7 × L + IRP 82 × 40 

SFS INTEC 

TPR 6,3 × L + IRD 82 × 40 

SFS INTEC 

FASTOVIS 3036 TF + 82x40R DF 


Rivet RER/PER + 82x40 R DF 


TI 6,3 × L + IRD 82 × 40 

SFS INTEC 

TI 6,3 × L + IF/IG C 82 × 40 

SFS INTEC 

DT 6,3 × L + IRD 82 × 40 

SFS INTEC 

BETOFAST TH 3C + 82x40R 


BETOFAST TH DF 3C + 82x40R 


NAILFIX CH + 82x40 R SC 


BETOFAST TT 2C+ ETANCOPLAST 

T80x40 


IGR S 8,0 × L + IG8 C 82 × 40 

SFS INTEC 

MULTIFAST TB INOX + 82x40R 


IG 6,0 × L + IRD 82 × 40 

SFS INTEC 

IWT 5.0 × L + IRC/W 82 × 40 

SFS INTEC 

MULTIFAST TF + 80x40R 


EVF2C 4.8xL + 82x40R SC 


EVDF2C 4.8xL + 82x40R DF 


EVDF2C 4.8xL + 82x40R SC 


5.3.4.1 

Axial 

loading 

test 

(N) 

5.3.4.2 

Unwinding 

5.3.4.3 

Mechanical 

resistance of 

sleeve 

5.3.7.1 

Resistance to 

corrosion of 

metallic 

fastenings, 

15 Kesternich 

cycles 

5.3.7.2 

Mechanical 

resistance after 

heat ageing of 

plastic 

fastenings 

Perforated profiled steel deck 

2600 Pass Not relevant Pass (

Material properties of the screws and fasteners: 


Screws 

• IR2 4.8xL: Hardened carbon steel screw. Double-thread, with a diameter of 4,8 mm, length L and with a 8 mm 

hexagonal head. Durocoat corrosion protection. 

• IR2S 4,8xL: Austenitic stainless steel A4 screw. Diameter of 4,8 mm, length L and with a 8 mm hexagon head. 

• IFP2 6,7xL: Hardened carbon steel screw. Double-thread, with a diameter of 6,7 mm, length L and with a 11 mm 

diameter flat head. Durocoat corrosion protection. 

• IWT 5xL: Hardened carbon steel screw. Diameter of 5 mm, length L and with a 9.5 mm diameter flat head. 

Duracoat corrosion protection. 

• IG 6xL: Hardened carbon steel screw. Diameter of 6 mm, length L and with a 8 mm diameter flat head. Duracoat 

corrosion protection. 

• IGR-S 8,0xL: Austenitic stainless steel A2 screw. Diameter of 8,0 mm, length L and with a 12 mm countersunk 

head. 

• TI 6,3xL: Hardened carbon steel screw. Diameter of 6,3 mm, length L and with a 8 mm hexagon head. Duracoat 


• DT 6xL: Hardened carbon steel screw. Diameter of 6,3 mm, length L 

• IG 6xL: Hardened carbon steel screw. Diameter of 6 mm, length L and with a 8 mm diameter flat head. Duracoat 


• EVF 2C 4.8xL: hardened carbon steel screw. Diameter of 4,8 mm, length L and with a 12 mm circular head. 

Supracoat corrosion protection. 

• EVDF 2C 4.8xL: hardened carbon steel screws with double-thread under head, with a diameter of 4,8 mm, length L 

and with a 12 mm circular head. Supracoat corrosion protection. 

• EVBDF 2C: hardened carbon steel screws with double-thread under head, with a diameter of 4,8 mm, length L and 

with a 12 mm circular head. Supracoat corrosion protection. 

• EHBDF 2C 4.8xL: hardened carbon steel screw with double-thread under head, with a diameter of 4,8 mm, length 

L and with a 8 mm hexagonal head. Supracoat corrosion protection. 

• VMS 2C 4.8xL: hardened carbon steel screw. Diameter of 4,8 mm, length L and with a 8.5 mm circular head. 


• EGB 2C 4.8xL: hardened carbon steel screw. Diameter of 4,8 mm, length L and with a 12 mm circular head. 


• ISODRILL TT: stainless steel screw. Diameter of 4,8 mm, length L and with a 8,5 mm circular head. A4 (1.4404) 

Stainless steel. 

• ISODRILL TH DF: Stainless steel screw with double-thread under head, with a diameter of 4,8 mm, length L and 

with a 8 mm hexagonal head. A4 (1.4304) stainless steel. 

• FASTOVIS 3036 TF 2C : hardened carbon steel screw. Diameter of 6,5 mm, length L and with a 11 mm 

cuntersunk head. Supracoat corrosion protection. 

• FASTOVIS 3036 TF DF 2C : hardened carbon steel screws with double-thread under head, with a diameter of 6,5 

mm, length L and with a 11 mm countersunk head. Supracoat corrosion protection. 

• PER and RER : Aluminium rivet. Diameter of 4,8 mm, length L and with a 10 mm circular head. 

• TPR 6,3xL : Aluminium rivet. Diameter of 6,3 mm, length L. 

• BETOFAST TH 3C: hardened carbon steel screw, with a diameter of 6,6 mm, length L and with a 8 mm hexagonal 

head. Supracoat corrosion protection. 

• BETOFAST TH DF 3C : hardened carbon steel screw with double-thread under head, with a diameter of 6,6 mm, 

length L and with a 8 mm hexagonal head. Supracoat corrosion protection. 

• BETOFAST TT 2C: hardened carbon steel screw. Diameter of 4,8 mm, length L and with a 8,5 mm circular head. 

Supracoat corrosion protection 

• NAILFIX CH: carbon steel nail diameter 4,8 mm, length L with a 10 circular head. Hot dip galvanized corrosion 

protection. 

• MULTIFAST TB INOX A2 : Stainless steel screw. Diameter of 6 mm, length L and with a 12 mm circular head. 

A2 (1.4301) stainless steel. 

• MULTIFAST TF : Stainless steel screw. Diameter of 6 mm, length L and with a 11 mm countersunk head. A2 

(1.4301) stainless steel.


Washers 

• 82x40 R DF: reinforced steel plate 82x40 mm, thickness 10/10e mm with punched inside cone. Hole Ø 5,1 mm. 

Aluzinc AZ 150 protection 

• 82x40 R: reinforced steel plate 82x40 mm, thickness 10/10e with punched inside cone. Hole Ø 6 mm. Aluzinc AZ 

150 protection 

• 82x40 R SC: reinforced steel plate 82x40 mm, thickness 10/10e mm. Hole Ø 6,4 mm. Aluzinc AZ 150 protection 

• IR 82x40, IRD 82x40, IRP 82x40, IF/IG C 82x40, IG8 C 82x40, IRC/W 82x40: steel plates with aluzinc 

protection, dimension 82x40 mm, thickness 1.00 mm 

• Etancoplast T 80x40: Ø 73x40 plastic plate with shaft 

Note In addition to the list of fasteners, other fasteners may also be used unless they are covered by a valid ETA and 

with rectangular plate with dimensions of 82X40 (as example, the fasteners of the ETA 08/0285 from AFAST BV – 

Guardian Fastening System- with plate size 82X40)


Annex 3 

Characteristics of the kit 

Membrane Fastener Wadm External fire performance 

DERBIGUM SP 4 FR See list in 1.1 784 N/Fastener Broof (t1) 

Field of application: see 

below 

Broof (t2) 


below 

Broof (t3) 


below 

DERBICOLOR 4 WSL See list in 1.1 784 N/Fastener Broof (t1) 


below 

Field of application for external fire performance 

Broof (t2) 


below 

Broof (t3) 


below 

The classification valid for the following conditions: 

• All pitches up to 20° 

• Range of decks: any wooden continuous deck with a minimum thickness of 16 mm and with gaps not exceeding 

5mm +/- 0.5 mm and any non-combustible continuous deck with a minimum thickness of 10 mm 

• Range of insulations: Combustible and non-combustible insulation materials with a density of at least 25 kg/m 3 and 

thickness at least 50 mm. 

• Mechanically fastened according to this ETA 

Wadm was determined with a fastener with axial loading resistance Roc = 1458 N, 

To determine Wadm for other combinations (other substrate and other fastener) the following formula and conditions 

apply: 

If Rnc ≥ Roc then Wadm, nc = Wadm, oc 

If Rnc < Roc then Wadm, nc = (Rnc/Roc) × Wadm,oc 

The application of the full scale test results for systems with other fasteners (Rnc) and/or substrates according to annex 2 

of this ETA, a separate ETA or Fastener PASS issued on the basis of ETAG 006, is possible if: 

• The plates are protected against corrosion; 

• The minimal thickness of the metallic plates is: 

o 0.75 mm, if they are ribbed, 

o 1.00 mm, if they are flat. 

In the new system, the use of plates that are different from those in the reference system is possible under the following 

conditions: 

• The steel plates are permitted with their resistance R determined in the whole system,


• The metal grades and thicknesses are higher or equal to those of reference ones, 

• The dimensions of washers comply with the conditions in the following Table. 

Round washers 

Plates “nc” 

Square, rectangular or oblong 

Plates “oc” 

washers 

Round, Ø test Ø ≥ Ø test Width and length larger than or 

equal to the one tested 

Square, rectangular or 

Ø ≥ diagonal of washer tested Dimensions larger than or equal 

oblong 

oc = original combination (tested) 

nc = new combination 

to the one tested 

The fasteners have to be in conformity with the specifications given in section 1.1.2 and annex 2 of this ETA, an ETA 

delivered on the basis on the ETAG 006 or a FASTENER PASS FOR MEFAWAME ETA – Intermediate evaluation in 

compliance with the European Technical Approval Guideline n°006.


Annex 4 

Design and installation details 

Design and installation 

The suitability of this kit is valid only if the installation is carried out in accordance with the manufacturer’s 

instructions. 

The kit may be laid in conditions normal to roofing work and must not be laid in rain, snow or heavy fog, nor if the 

temperature falls below 2°C, unless specific precautions have been taken. 

Laying and overlaps 

The roll, with a nominal width of 110 or 55 cm, is aligned and unrolled in contact of the substrate. The DERBIGUM 

will always be placed with its glass fibre armature, of which the stripes are visible, upwards. 

The roll is then mechanically fixed with the fasteners and washers under the longitudinal overlaps (cfr Figure 1). The 

longitudinal overlaps between adjacent membranes are 130 mm ± 10 mm (min 120 mm), the end overlaps are 150 mm. 

Figure 1 : longitudinal overlap with mechanical fastener 

The crossing of the overlaps is done with a T-joint. The edge of the corner is cut at 45° (cfr Figure 2). 

Figure 2 : T-joint 

Overlaps must be then welded over their whole widths, the edges are then correctly pressed down. A small quantity of 

bitumen must be exuded from the overlap joint.


Fasteners 

The system is mechanically fastened in the overlaps by using prescribed fasteners (see chapter above). The position of 

the fastener in the overlap is shown on the figure 1 above. 

The calculation of the distance between fasteners and the number of fasteners per square meters on the different roof 

zones are determined according to the national Standards. 

The distance E between fasteners is determined by the formula E ≤ 1 / (D * Lr) with the following restrictive 

conditions: 

- Minimal distance between fasteners = 18 cm 

- Maximal distance between fasteners = 34 cm (or in accordance with national standards). 

With 

- D = minimal density of fasteners = Dp / Wadm of the “kit” 

- Lr = distance between fasteners rows (= width of the waterproofing sheet – width of the overlap; 97 cm for a 

110 cm sheet, 42 cm for a 55 cm sheet). Figure 5 below gives Lr values for several sheet laying. 

- Dp = Wind air pressure in the different roof zones (central, edge, corner,…) according to the national standards. 

If the calculated distance with a 110 cm sheet is E < 18 cm it is needed to adapt the laying of the system by either : 

- using sheets of 55 cm in width with fasteners in the longitudinal overlaps. See figure 3 below. 

- laying additional fasteners in a row at the middle of the sheet. Those fasteners are then recovered by a bridging 

stroke of width 20 cm in DERBIGUM fully torched. See figure 4 below. 

- Enlarge the width of the longitudinal overlaps > 130 mm. 

Figure 3 : half strokes Figure 4 : bridging strokes


Figure 5 : Distance between rows of fasteners 

Insulation 

The possibly laid insulation layer is constituted by thermal insulation boards appropriate for the use considered (see 

ETAG 006 chapter 5.4 and 6.4). They are loose laid on the possibly present vapour barrier. The mechanical fastening 

of the waterproofing system fastens the movement of the underlying layers to the deck. In some case (in function of 

insulation boards size and national standards) the insulation boards need to be independently fixed by 1 or 2 fasteners 

per boards that are not counted for in the density calculation for the mechanically fixed waterproofing. The insulation 

layer and the vapour barrier are realized according to the national standards.

Details 


Upstands 

The waterproofing upstand on vertical surfaces is carried out according to the details 6 and 7. The realization detail 

(size of strokes, minimal upstand height) and the finishing at the top of the upstand (flashing, finishing profile, etc…) 

are in accordance with national recommendations. 

Examples of layout for the waterproofing upstand 

5 

3 4 

≥ 2 cm 

≥ 4 cm 

Figure 6 : Upstand with upperlying 

reinforcing strip 

h 2 

1. Substrate of the waterproofing sheet 

2. Waterproofing mechanically fixed 

3. Reinforcing strip fully torched 

4. Waterproofing upstand fully torched 

5. Finishing at the end of the waterproofing 

h minimum height : see national recommendations 

For the realization details : see national recommendations 

1 

5 

3 4 

≥ 2 cm ≥ 4 cm 

Figure 7 : Upstand with underlying 

reinforcing strip 

h 2 

Water outlet 

A recess is carried in the substrate or in the insulation board (in case of a warm roof buildup) around the water outlet, 

with a thickness difference of min 10 mm. See detail here below. 

1. Recess in the waterproofing substrate 

1 

Figure 8 : water outlet with fastened flange 

a 

5 3 

2 

4 

1


2. Reinforcing piece in DERBIGUM 

3. Flange of the water outlet mechanically fixed at the corners 


5. Grate 

a minimum width of the flange : see national recommendations 

For the realization details: see national recommendations 

Penetration fastening 

The waterproofing detail on punctual penetration are carried as shown in Figure 9. 

Figure 9 : Penetration fastening example 

1 

≥ 100 mm 

a 

6 

1. Substrate 


3. Sleeve of the penetration (duct, tube, roof vent etc…) with flange mechanically fixed at the corners 

4. Fastener of the flange 


6. Flashing 

a minimum width of the flange : see national recommendations 

Details relatives to some specific national recommendations 

Central valley with a zero slope 

1. Valley reinforcement ; 

- waterproofing mechanically fixed ; DERBIGUM SP 4 FR 

- or waterproofing mechanically fixed ; DERBICOLOR WSL returned 

3 

4 

5 

2


- or DERBICOAT HP (380N/fastener) with a line of additional fixation in the middle of the sheet, with the same 

spacing of fasteners as on the edge 

2. Waterproofing fully torched 


Edge valley with a zero slope 

1. Reinforcement corner or strip 

2. Valley reinforcement ; 

- waterproofing mechanically fixed ; DERBIGUM SP 4 FR 

- or waterproofing mechanically fixed ; DERBICOLOR WSL 

- or DERBICOAT HP (380N/fastener) with a line of additional fixation in the middle of the sheet, with the same 

spacing of fasteners as on the edge 

3. Upstands fully torched

European Technical Approval ETA-06/0157 - ETA-Danmark

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