Earthwool Acoustic Floor Slab and Earthwool ... - Knauf Insulation

Knauf Insulation Ltd
P O Box 10
Stafford Road
St Helens
Merseyside WA10 3NS
Tel: 01744 24022 Fax: 01744 612007
e-mail: tech@knaufinsulation.co.uk
website: www.knaufinsulation.co.uk
KNAUF INSULATION ACOUSTIC FLOOR SLABS
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APPROVAL
INSPECTION
TESTING
CERTIFICATION
TECHNICAL APPROVALS FOR CONSTRUCTION
EARTHWOOL ACOUSTIC FLOOR SLAB AND EARTHWOOL ACOUSTIC FLOOR SLAB PLUS
PRODUCT SCOPE AND SUMMARY OF CERTIFICATE
This Certificate relates to Earthwool Acoustic Floor Slab
and Earthwool Acoustic Floor Slab Plus, rock mineral wool
slabs, for use as a resilient layer for acoustic insulation of
intermediate timber-based separating floors and intermediate
concrete floors respectively. The products may also be used
on ground-supported or suspended concrete ground floors
to reduce the thermal transmittance, in new and existing
dwellings, flats and similar buildings.
AGRÉMENT CERTIFICATION INCLUDES:
factors relating to compliance with Building Regulations
where applicable
factors relating to additional non-regulatory information
where applicable
independently verified technical specification
assessment criteria and technical investigations
design considerations
installation guidance
regular surveillance of production
formal three-yearly review.
Agrément Certificate
97/3433
Product Sheet 1
KEY FACTORS ASSESSED
Sound insulation — Earthwool Acoustic Floor Slab is a suitable resilient layer in timber platform floors, Type 3 in new build and Floor
Treatment/Type 2 in conversions and Earthwool Acoustic Floor Slab Plus is suitable in FFT4 in E-FC-1 and E-FC-2 Robust Details (see section 5).
Thermal performance — the thermal conductivity (λ 90/90 value) of the insulation component of the product as declared by the Certificate
holder is 0.036 W·m –1 ·K –1 (see section 6).
Condensation — the products can adequately limit the risk of surface condensation on floors (see section 7).
Behaviour in relation to fire — The products are classified as class A1 in accordance with BS EN 13501-1 : 2002, non-combustible,
and do not prejudice the fire resistance properties of the floor(see section 8).
Floor loading — the products, covered with a screed overlay or particle board can support design loadings for self-contained dwelling
units as defined in BS 6399-1 : 1996 without undue compression deflection (see section 9).
Durability — the products, when installed with the overlays specified, will remain effective for the life of the building in which they are
incorporated (see section 12).
The BBA has awarded this Agrément Certificate to the company named above for the products described herein.
These products have been assessed by the BBA as being fit for their intended use provided they are installed,
used and maintained as set out in this Certificate.
On behalf of the British Board of Agrément
Date of First issue: 9 September 2010 Chris Hunt Greg Cooper
Originally certificated on 11 February 1998 Head of Approvals — Physics Chief Executive
The BBA is a UKAS accredited certification body — Number 113. The schedule of the current scope of accreditation for product certification is
available in pdf format via the UKAS link on the BBA website at www.bbacerts.co.uk
Readers are advised to check the validity and latest issue number of this Agrément Certificate by either referring to the BBA website or contacting the BBA direct.
British Board of Agrément tel: 01923 665300
Bucknalls Lane fax: 01923 665301
Garston, Watford e-mail: mail@bba.star.co.uk
Herts WD25 9BA ©2010
website: www.bbacerts.co.uk

Regulations
In the opinion of the BBA, Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus, if used in
accordance with the provisions of this Certificate, will meet or contribute to meeting the relevant requirements of the
following Building Regulations:
The Building Regulations 2000 (as amended) (England and Wales)
Requirement: A1 Loading
Comment: The products have adequate strength and stiffness. See section 9.1 of this Certificate.
Requirement: C2(c) Resistance to moisture
Comment: The products can adequately limit the risk of surface condensation. See sections 7.1 and 7.2 of this
Certificate.
Requirement: E1 Protection against sound from other parts of the building and adjoining buildings
Comment: When installed in suitable floor constructions, the products can contribute to meeting this Requirement. See
sections 5.1 to 5.5 of this Certificate.
Requirement: L1(a)(i) Conservation of fuel and power
Comment: The products can contribute to meeting this Requirement. See sections 6.2 and 6.3 of this Certificate.
Requirement: Regulation 7 Materials and workmanship
Comment: The products are acceptable material. See section 11 and the Installation part of this Certificate.
The Building (Scotland) Regulations 2004 (as amended)
Regulation: 8(1) Fitness and durability of materials and workmanship
Comment: The use of the products satisfies the requirement of this Regulation. See section 11 and the Installation part
of this Certificate.
Regulation: 9 Building standards — construction
Standard: 1.1(b) Structure
Comment: The products have adequate strength and stiffness, with reference to clause 1.1.1 (1) . See section 9.1 of
this Certificate.
Standard: 3.15 Condensation
Comment: The products can adequately limit the risk of surface condensation, , with reference to clauses
3.15.1 (1) ,3.15.4 (1) and 3.15.5 (1) . See sections 7.1 and 7.3 of this Certificate.
Standard: 6.1(b) Carbon dioxide emissions
Standard: 6.2 Building insulation envelope
Comment: The products can contribute to satisfying clauses, or parts of, 6.1.2 (1)(2) , 6.1.3 (1)(2) , 6.1.6 (1) , 6.2.1 (1)(2) ,
6.2.3 (1)(2) , 6.2.4 (2) , 6.2.6 (1) , 6.2.7 (1)(2) to 6.2.11 (1)(2) and 6.2.12 (2) of these Standards. See sections 6.2
and 6.3 of this Certificate.
Regulation: 12 Building standards — conversions
Comment: All comments given for the products under Regulation 9, also apply to this Regulation, with reference to
clause 0.12.1 (1) and Schedule 6 (1) .
(1) Technical Handbook (Domestic).
(2) Technical Handbook (Non-Domestic).
The Building Regulations (Northern Ireland) 2000 (as amended)
Regulation: B2 Fitness of materials and workmanship
Comment: The products are acceptable materials. See section 11 and the Installation part of this Certificate.
Regulation: C5 Condensation
Comment: The products can adequately limit the risk of surface condensation. See section 7.1 of this Certificate.
Regulation: D1 Stability
Comment: The products have adequate strength and stiffness. See section 9.1 of this Certificate.
Regulation: F2(a)(i) Conservation measures
Regulation: F3(2) Target carbon dioxide Emissions Rate
Comment: The products can contribute to meeting this Regulation. See sections 6.2 and 6.3 of this Certificate.
Regulation: G2(2) Separating walls and separating floors
Regulation: G3(2) Existing walls and floors which become separating walls and separating floors
Comment: When installed in suitable floor constructions the products can contribute to satisfying these Regulations.
See sections 5.1, 5.4 and 5.5 of this Certificate.
Construction (Design and Management) Regulations 2007
Construction (Design and Management) Regulations (Northern Ireland) 2007
In the opinion of the BBA, there is no information in this Certificate which relates to the obligations of the client, CDM
co-ordinator, designer and contractors under these Regulations.
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Non-regulatory Information
NHBC Standards 2010
NHBC accepts the use of Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus, when installed and
used in accordance with this Certificate, in relation to NHBC Standards, Chapters 5.1, Substructure and ground
bearing floors, 5.2 Suspended ground floors and 6.4 Timber and concrete upper floors.
Technical Specification
1 Description
1.1 Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus are unfaced, plain-edged slabs
manufactured from high-density mineral wool (rock) which is resin-bonded with ECOSE (1) Technology binder and is
water repellent.
(1) ECOSE is a registered trademark of Knauf Insulation Ltd.
1.2 The slabs have the nominal characteristics as shown in Table 1.
Table 1 Nominal characteristics
Length
Width
Insulation thickness
Declared overall thermal conductivity
Minimum compressive strength
Nominal density
Edge detail
Earthwool Acoustic Floor Slab Earthwool Acoustic Floor Slab Plus
900 mm
600 mm
25 mm
0.036 W·m –1 ·K –1
10 KPa
100 kg·m –3
Square
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900 mm
600 mm
25, 30, 40 and 50 mm
0.036 W·m –1 ·K –1
10 KPa
140 kg·m –3
Square
2 Delivery and site handling
2.1 The slabs are delivered to site in weatherproof Supakube packaging. Each pack carries a label bearing
the manufacturer’s name, product description, essential instructions for installation and the BBA identification mark
incorporating the number of this Certificate.
2.2 The slabs must be stored under cover until required for use.
Assessment and Technical Investigations
The following is a summary of the assessment and technical investigations carried out on Earthwool Acoustic Floor Slab
and Earthwool Acoustic Floor Slab Plus.
Design Considerations
3 General
3.1 Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus are used as a resilient layer for acoustic
insulation of intermediate timber-based separating floors and intermediate concrete floors respectively, and are also
effective in reducing the thermal transmittance (U value) of new or existing concrete floors, when used as a double layer.
3.2 Earthwool Acoustic Floor Slab is a suitable resilient layer in timber platform floors, Type 3 in new build and Floor
Treatment/Type 2 in conversions and Earthwool Acoustic Floor Slab Plus is suitable in FFT4 in E-FC-1 and E-FC-2
Robust Details.
3.3 The slabs must not be used where they may come into contact with moisture from the ground.
3.4 Ground-supported concrete floors incorporating the slabs must include a suitable damp-proof membrane laid in
accordance with the relevant clauses of CP 102 : 1973, BS 8102 : 1990 and/or BS 8215 : 1991.
3.5 Suspended concrete ground floors incorporating the boards must include a damp-proof membrane or suitable
ventilation of the sub-floor as appropriate.
3.6 The overlay to the slabs should be:
a cement-based floor screed, laid in accordance with the relevant clauses of BS 8204-1 : 2003 and/or
BS 8204-2 : 2003, and BS 8000-9 : 2003, or
wood-based floor, eg tongue-and-groove, flooring grade particle board (Type P5 or P7) to BS EN 312 : 2003
or oriented strand board of type OSB/3 or OSB/4 to BS EN 300 : 2006, 18 mm thick (minimum), installed in
accordance with DD CEN/TS 12872:2007, or
a concrete slab in accordance with BS 8204-1 : 2003 and BS 8204-2 : 2003.

3.7 Floors intended to support heavy, vibrating items must be designed to take into account the recommendations
given in section 9.2.
4 Practicability of installation
The products are designed to be installed by a competent general builder, or a contractor, experienced with this type
of product.
5 Sound insulation
5.1 Separating sub-floors, flanking elements and overlays incorporating the products must be designed and
constructed to avoid direct paths for airborne sound transmission and to minimise the flanking sound transmission.
Guidance is given in the following documents:
England and Wales — Approved Document E and the Robust Details, Part E Resistance to the passage of sound (Jan 2005)
Northern Ireland — Technical Booklets G and G1.
5.2 Laboratory tests in accordance with Appendix D of Robust Details, Part E on floating floor treatments (FFT),
comprising 25 mm and 30 mm Earthwool Acoustic Floor Slab Plus in conjunction with 18 mm chipboard,
achieved reduction in impact sound transmission ( Lw) values greater than 17 dB. These finishes may, therefore,
be used as a FFT4 on Robust concrete separating floor details E-FC-1 and E-FC-2.
5.3 Separating floors incorporating the products in England and Wales, other than those described in section 5.2,
are subject to pre-completion testing in accordance with Section 1 of Approved Document E.
5.4 New timber floors incorporating Earthwool Acoustic Floor Slab as the resilient layer will provide satisfactory
impact and airborne sound insulation when constructed in accordance with:
England and Wales — Approved Document E, Sections 3.94 to 3.120 – Floor Type 3
Northern Ireland — Technical Booklet G, Section 1.11 – Floor Type 3A.
5.5 Existing timber floors incorporating Earthwool Acoustic Floor Slab as the resilient layer will provide satisfactory
impact and airborne sound insulation when constructed in accordance with:
England and Wales — Approved Document E, Sections 4.31 to 4.34 – Floor Treatment 2
Northern Ireland — Technical Booklet G1, Section 2.6 – Floor Type 2.
6 Thermal performance
6.1 Calculations of the thermal transmittance (U value) of a floor should be carried out in accordance with
BS EN ISO 6946 : 2007, BS EN ISO 13370 : 2007 and BRE report BR 443 : 2006 Conventions for U-value
calculations using the declared thermal conductivity (λ 90/90) of 0.036 W·m –1 ·K –1 .
6.2 The U value of a floor will depend on the thickness of the products, the perimeter/area ratio and the floor
type. Examples of U values are given in Table 2. Floor constructions incorporating the products can contribute to
achieving the design U values given in Tables 3 and 4.
Table 2 Floor U values (1)
Floor type Perimeter/ area ratio Insulation thickness
40 mm 75 mm 100 mm
Slab on ground support 0.2
0.24 0.19 0.17
0.4
— 0.25 0.21
0.6
— — 0.24
0.8
— — 0.25
Suspended timber floor 0.2
0.25 0.2 0.18
0.4
— 0.25 0.21
0.6
— — 0.23
0.8
— — 0.24
1.0
— — 0.24
(1) Excluding edge insulation for the ground-supported floor system.
Table 3 Typical design U values for floors — England and Wales, and Northern Ireland
Construction type U values
(W·m –2 ·K –1 )
Mean for new extensions (1) 0.22
‘Notional’ mean in SAP and SBEM and limit mean for new-build 0.25
Mean for replacement, renovated and retained floors and non domestic
consequential improvements (1)
0.25
Individual limit for new-build and flexible approaches (1) 0.70
(1) Alternative or flexible approaches are given in relevant documents supporting the national Building Regulations.
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Table 4 Typical design U values for floors — Scotland
Construction type U values
(W·m –2 ·K –1 )
‘Notional’ mean for new dwellings in SAP and the ‘simplified’ approach:
solid fuel, packages 3 and 6
other fuels, packages 1, 2, 4 and 5
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0.20
0.22
Mean for conversion of unheated buildings and stand alone buildings of less than 50 m2 0.22
Mean for extensions and alterations (1) ‘Notional’ mean for non-domestic in SBEM and limit mean for all new build and stand
0.22
alone buildings of 50 m2 or more
Individual limit for; new build, new extensions, and alterations
0.25
(1) and conversions of
heated buildings and stand alone buildings of less than 50 m2 0.70
(1) Alternative or flexible approaches are given in relevant documents supporting the national Building Regulations.
6.3 The product can contribute to maintaining continuity of thermal insulation at junctions between ground floors and
external walls. Example junction details shown in Figure 2 will allow the use of the default psi values for Accredited
Construction Details in carbon emission calculations. Detailed guidance for other junctions and on limiting heat loss by
air infiltration can be found in:
England and Wales — Accredited Construction Details (version 1.0)
Scotland — Accredited Construction Details (Scotland)
Northern Ireland — Accredited Construction Details (version 1.0).
7 Condensation
Interstitial condensation
7.1 Floors will adequately limit the risk of interstitial condensation when they are designed and constructed in
accordance with BS 5250 : 2002, Section 8.5 and Appendix D.
Surface condensation
7.2 Floors will adequately limit the risk of surface condensation when the thermal transmittance (U value) does
not exceed 0.7 W·m –2 ·K –1 at any point, and the junctions with walls are designed in accordance section 6.3.
7.3 Floors will adequately limit the risk of surface condensation when the thermal transmittance (U value) does
not exceed 1.2 W·m –2 ·K –1 at any point. Guidance may be obtained from Section 8 of BS 5250 : 2002 and
BRE report (BR 262 : 2002) Thermal insulation : avoiding risks.
8 Behaviour in relation to fire
8.1 The products are classified as class A1 in accordance with BS EN 13501-1 : 2002, non-combustible and do not
prejudice the fire resistance properties of the floor.
8.2 When properly installed, the slabs will not add significantly to any existing fire hazard. The slabs will be
contained within the floor by the overlay until the overlay itself is destroyed. Therefore, the boards will not contribute to
the development stages of a fire or present a smoke or toxic hazard.
9 Floor loading
9.1 The products are suitable for occupancies defined in this Certificate when covered with a suitable floor
covering and are capable of resisting a uniformly distributed load of

Installation
12 General
12.1 Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus must be installed in accordance with
the Certificate holder’s instructions. Installation should not commence until the building is weatherproof and wet trades
complete and dried out.
12.2 All concrete floor surfaces should be smooth, level and flat to within 5 mm when measured with a two-metre
straight-edge. Irregularities greater than this must be removed. Minor depressions (up to 10 mm deep) may be levelled
with mortar or a thin screed.
12.3 The concrete floor over which the elements are to be laid should be left as long as possible to maximise drying
out, eg the recommendations of BS 8203 : 2001 should be followed
12.4 Before installation, timber floors should be inspected thoroughly for possible defects and its condition should meet
the recommendations of BS 8201 : 1987, Section 6.
12.5 Typical methods of installing the products in separating floors and ground floors are shown in Figures 1 and 2
respectively.
Figure 1 Typical separating floor installation constructions
Figure 2 Typical ground floor installation constructions
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Timber and concrete separating floors
12.6 To ensure that paths for sound transmission through the floor assembly and the flanking elements are minimised.
Each installation should be checked to ensure that:
the floors are as shown in Figure 1
the timber floor incorporates a minimum of 100 mm thick mineral wool quilt in the cavity
junctions between the flanking elements and the sub-floor deck are suitably sealed
junctions in cavity walls flanking the floor are stopped
junctions with internal non-loadbearing walls are sealed
fixings or services do not bridge the acoustic floor slab
ceiling comprises two layers of plasterboard with joints staggered not less than 30 mm overall thickness
junctions between ceiling and wall linings are filled and taped.
Concrete ground floors (see Figure 2)
12.7 Where the slabs are used over ground-supported concrete floor slabs a suitable damp-proof membrane in
accordance with CP 102 : 1973, Section 11 and BS 8204-1 : 2003 or BS 8204-2 : 2003 should be laid to
resist moisture from the ground. If a liquid-type damp-proof membrane is applied to the slabs, it should be of a type
compatible with the boards and be allowed to dry out fully prior to installation of the slabs.
12.8 The slabs can be used on beam and block suspended concrete floors, that are the subject of a current Agrément
Certificate and installed in accordance with and within the limitations imposed by that Certificate, or those designed
and installed to the precast concrete and general loading codes, that have been assessed as suitable.
12.9 Where the slabs are used on hardcore bases under ground-supported concrete slabs, the hardcore must be
compacted and blinded with a thin layer of sand before application of the dpm and boards.
12.10 Where a screed or concrete slab is laid over the products, vertical upstands of insulation should be provided
and be of sufficient depth to fully separate the screed or slab from the wall and provide a minimum thermal resistance
of 0.75 m2 ·K·W –1 . Alternatively, a suitable partial fill cavity wall insulation material can be extended below the
damp-proof course level to provide edge insulation to the floor.
12.11 To limit the risk of damage from condensation and other sources of dampness, the boards and overlays should
only be laid after the construction is made substantially weathertight, eg after glazing. During construction the boards
must also be protected from water spillage, plaster droppings and traffic.
13 Procedure
13.1 The slabs are cut to size, as necessary and laid with closely-butted joints ensuring that all spaces are completely filled.
Particle board overlay
13.2 Permanent heavy items should be supported with battens positioned on the sub-floor and recessed into the
insulation. Partitions should be built directly on to the sub-floor. For further information, contact the Certificate holder’s
Technical Advisory Service.
13.3 Where the slabs are laid on a dpm, a continuous vapour control layer with sealed joints of polyethylene sheet,
minimum thickness 0.25 mm (1000 gauge) may be laid between the slabs and the particle board unless a
condensation risk analysis to BS 5250 : 2002 shows that it is not necessary. The polyethylene sheet must have
150 mm overlaps taped at the joints and is turned up 100 mm at the walls (see Figure 2).
13.4 Tongue-and-groove particle board (type P5 or P7), or OSB/3 and OSB/4, 18 mm thick, should be laid with
staggered cross-joints in accordance with DD CEN/TS 12872 : 2007.
13.5 An expansion gap between the particle board and the perimeter walls or abutments should be provided at the
rate of 2 mm per metre run or a minimum of 10 mm, whichever is the greater.
13.6 Where there are long, uninterrupted lengths of floor, eg corridors, proprietary expansion joints must be installed
at intervals on the basis of a 2 mm gap per metre run of particle board.
13.7 Before the slabs are interlocked, a PVA adhesive should be applied to the joints.
13.8 Once the particle board has been laid, temporary wedges are inserted between the walls and the floor to
maintain tight joints until the adhesive has set.
13.9 When the wedges are removed and before the skirting boards are fixed, suitable compressible filler, eg pieces
of glass wool or foam should be fitted around the perimeter of the floor between the particle board and the walls.
13.10 Where there is a likelihood of regular water spillage, eg in rooms such as kitchens, bathrooms, shower and
utility rooms, additional protection should be considered, eg a continuous, flexible, vinyl sheet flooring with welded
joints and cove skirting.
Concrete slab overlay (ground bearing only)
13.11 Perimeter insulation of minimum thickness 25 mm should be placed vertically between edge of the slab
and external wall, up to the lower edge of the skirting. The concrete slab is laid over building paper to the required
thickness in accordance with BS 8000-9 : 2003 and BS 8204-1 : 2003. [see Figure 2(c)].
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Cement-based screed overlay (ground bearing only)
13.12 Perimeter edge pieces are cut and placed around the edges before building paper and a properly compacted
screed of a minimum 65 mm thickness laid. The relevant clauses of BS 8204-1 : 2003 or BS 8204-2 : 2003 should
be followed and BRE’s Building Elements, Floors & Flooring, Chapter 4.2, should be consulted.
Timber-based separating floors
13.13 To ensure perimeter support and isolation of the flooring system, Floorfoam Easy Edge Strip should be used.
The strip is fixed to the wall. The skirting board is fixed to the wall, securing the flanking band between the skirting and
the deck.
13.14 Preservative-treated battens with a 6 mm resilient foam cushion, in accordance with BS 1282 : 1999 are
positioned at room perimeters, doorways, access panels and to support partitions. Adequate time should be allowed
for preservatives to be fixed and the solvents from solvent-based preservatives to evaporate.
13.15 The slabs are laid over timber or wood-based floor decking (12 mm minimum thick) and covered with 19 mm
thick plasterboard (or other board of no lesser weight) and butted against the Floorfoam Easy Edge Strip. Spot bond
18 mm thick tongue and groove timber or wood-based flooring to the plasterboard, with joints staggered and glue the
tongue and groove joints. The Floorfoam Easy Edge Strip is folded under the skirting to provide acoustic isolation of the
floor deck from the wall. [see also sections 13.2, 13.4 to 13.8 and 13.10 and Figure 1(b)].
Concrete-based separating floors
13.16 The procedure starts in the same way as shown in sections 13.13 and 13.14.
13.7 The slabs are laid over the concrete floor. 18 mm thick tongue and groove timber or wood-based flooring is laid
over the slabs and joints glued. The Floorfoam Easy Edge Strip is folded under the skirting to provide acoustic isolation
of the floor deck from the wall.
14 Incorporation of services
14.1 The slabs must not be used in direct contact with electrical heating cables. De-rating of electrical cables should
be considered where the insulation restricts air cooling of cables (see section 14.3).
14.2 Where the slabs are installed on a floor of a suspended beam and block design, all services must be installed in
accordance with the Agrément Certificate for that floor and/or with the relevant current codes of practice.
14.3 Where possible, electrical conduits, gas and water pipes or other services should be contained within ducts or
channels within the concrete slab. Where this is not possible, the services may be accommodated within the insulation,
provided they are securely fixed to the concrete slab. Electrical cables should be enclosed in a suitable conduit.
14.4 Where water pipes are installed below or within the insulation they should be pre-lagged. Generally, insulation
will be relatively thin so it would not be possible to install pipes within the insulation. Pipes installed above the insulation
will not require lagging, although some provision needs to be made for expansion and contraction.
14.5 For particle board overlay floors which require access to services, a duct may be formed by mechanically fixing
timber bearers (which should be the same thickness as the insulation) to the floor, in order to provide support for the
overlay. The duct should be as narrow as possible and not exceed 400 mm in width or the maximum particle board
spans given in DD CEN/TS 12872 : 2007 without intermediate support. Services should be suitably fixed to the floor
base and not to the insulation boards (see section 6.3 with regard to limiting heat loss).
14.6 In timber separating floors, all the services should be incorporated beneath the existing floor.
Technical Investigations
15 Tests
Tests were carried out on Earthwool Acoustic Floor Slab and Earthwool Acoustic Floor Slab Plus to determine:
creep density dimensional analysis deformation under compressive load.
16 Investigations
16.1 An examination was made of data relating to:
thermal conductivity durability properties in relation to fire
effect of moisture physical properties of the slab sound insulation performance ratings.
16.2 Existing data relating to the risk of interstitial condensation were examined and confirmed.
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Bibliography
BS 1282 : 1999 Wood preservatives — Guidance on choice, use and application
BS 5250 : 2002 Code of practice for control of condensation in buildings
BS 6399-1 : 1996 Loading for buildings — Code of practice for dead and imposed loads
BS 8000-9 : 2003 Workmanship on building sites — Cementitious levelling screeds and wearing screeds — Code of
practice
BS 8102 : 1990 Code of practice for protection of structures against water from the ground
BS 8201 : 1987 Code of practice for flooring of timber, timber products and wood based panel products
BS 8203 : 2001 Code of practice for installation of resilient floor coverings
BS 8204-1 : 2003 Screeds, bases and in-situ floorings — Concrete bases and cement sand levelling screeds to
receive
BS 8204-2 : 2003 Screeds, bases and in-situ floorings — Concrete wearing surfaces — Code of practice
BS 8215 : 1991 Code of practice for design and installation of damp-proof courses in masonry construction
BS EN 300 : 2006 Oriented Strand Boards (OSB) — Definitions, classification and specifications
BS EN 312 : 2003 Particleboards — Specifications
BS EN 1991-1-1 : 2002 Eurocode 1 : Actions on structures — General actions— Densities, self-weight, imposed
loads for buildings
BS EN 13501-1 : 2002 Fire classification of construction products and building elements. Classification using test
data from reaction to fire tests
BS EN ISO 6946 : 2007 Building components and building elements — Thermal resistance and thermal transmittance
— Calculation method
BS EN ISO 13370 : 2007 Thermal performance of buildings — Heat transfer via the ground — Calculation methods
CP 102 : 1973 Code of practice for protection of buildings against water from the ground
DD CEN/TS 12872 : 2007 Wood-based panels — Guidance on the use of load-bearing boards in floors, walls and
roofs
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Conditions of Certification
17 Conditions
17.1 This Certificate:
relates only to the product/system that is named and described on the front page
is granted only to the company, firm or person named on the front page — no other company, firm or person may
hold or claim any entitlement to this Certificate
is valid only within the UK
has to be read, considered and used as a whole document — it may be misleading and will be incomplete to be
selective
is copyright of the BBA
is subject to English law.
17.2 Publications and documents referred to in this Certificate are those that the BBA deems to be relevant at the date
of issue or re-issue of this Certificate and include any: Act of Parliament; Statutory Instrument; Directive; Regulation;
British, European or International Standard; Code of Practice; manufacturers’ instructions; or any other publication or
document similar or related to the aforementioned.
17.3 This Certificate will remain valid for an unlimited period provided that the product/system and the manufacture
and/or fabrication including all related and relevant processes thereof:
are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA
continue to be checked as and when deemed appropriate by the BBA under arrangements that it will determine
are reviewed by the BBA as and when it considers appropriate.
17.4 In granting this Certificate, the BBA is not responsible for:
the presence or absence of any patent, intellectual property or similar rights subsisting in the product/system or any
other product/system
the right of the Certificate holder to manufacture, supply, install, maintain or market the product/system
individual installations of the product/system, including the nature, design, methods and workmanship of or related
to the installation
the actual works in which the product/system is installed, used and maintained, including the nature, design,
methods and workmanship of such works.
17.5 Any information relating to the manufacture, supply, installation, use and maintenance of this product/system
which is contained or referred to in this Certificate is the minimum required to be met when the product/system is
manufactured, supplied, installed, used and maintained. It does not purport in any way to restate the requirements
of the Health & Safety at Work etc Act 1974, or of any other statutory, common law or other duty which may exist
at the date of this Certificate; nor is conformity with such information to be taken as satisfying the requirements of the
1974 Act or of any statutory, common law or other duty of care. In granting this Certificate, the BBA does not accept
responsibility to any person or body for any loss or damage, including personal injury, arising as a direct or indirect
result of the manufacture, supply, installation, use and maintenance of this product/system.
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British Board of Agrément tel: 01923 665300
Bucknalls Lane fax: 01923 665301
Garston, Watford e-mail: mail@bba.star.co.uk
Herts WD25 9BA ©2010
website: www.bbacerts.co.uk
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