ISOVER CAVITY WALL INSULATION CWS 36, CWS 34 AND CWS 32 FOR FULL FILL
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Saint-Gobain Isover UK Limited Whitehouse Industrial Estate Runcorn Cheshire WA7 3DP Tel: 0800 032 2555 e-mail: isover.enquiries@saint-gobain.com website: www.isover.co.uk This Agrement Certificate Products Sheet(1) relates to CWS 36, CWS 34 and CWS 32 for Full Fill, unfaced glass mineral wool slabs for use as full fill thermal insulation in new external masonry cavity walls, up to 25 metres in height, in new buildings of a domestic and non-domestic nature (additional requirements apply for buildings above 12 metres). The products are installed during construction. (1) Hereinafter referred to as 'Certificate'. 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. Thermal performance — the products have declared thermal conductivities (Ad) of 0.036 W-m-1-K-1 for CWS 36, 0.034 W-m-1-K-1 for CWS 34 and 0.032 W-m-1-K-1 for CWS 32 (see section 6). Water resistance — the products will resist the transfer of water across the cavity (see section 7). Condensation risk — the products can contribute to limiting the risk of condensation (see section 8). Behaviour in relation to fire — the products have a reaction to fire classification of Class A1 to BS EN 13501-1 : 2007 (see section 9). Durability — the products are durable, rot proof, water resistant and sufficiently stable to remain effective as insulation for the life of the building (see section 11). The BBA is a UKAS accredited certification body - Number 113. The schedule of the current scope of accreditation for products 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 Agrement Certificate by either referring to the BBA website or contacting the BBA direct. Any photographs are for illustrative purposes only, do not constitute advice and should not be relied upon. British Board of Agrement Bucknalls Lane tel: 01923 665300 Watford clientservices@bbacerts.co.uk

In the opinion of the BBA, CWS 36, CWS 34 and CWS 32 for Full Fill, if installed, used and maintained in accordance with this Certificate, can satisfy or contribute to satisfying the relevant requirements of the following Building Regulations (the presence of a UK map indicates that the subject is related to the Building Regulations in the region or regions of the UK depicted): The Building Regulations 2010 (England and Wales) (as amended) Requirement: B3(4) Internal fire spread (structure) The products can contribute to satisfying this Requirement. See section 9 of this Certificate....

(1) Technical Handbook (Domestic). (2) Technical Handbook (Non-Domestic). The Building Regulations (Northern Ireland) 2012 (as amended) Regulation:

Construction (Design and Management) Regulations 2015 Construction (Design and Management) Regulations (Northern Ireland) 2016 Information in this Certificate may assist the client, designer (including Principal Designer) and contractor (including Principal Contractor) to address their obligations under these Regulations. See section: 3 Delivery and site handling (3.3) of this Certificate. NHBC Standards 2018 In the opinion of the BBA, CWS 36, CWS 34 and CWS 32 for Full Fill, if installed, used and maintained in accordance with this Certificate, can satisfy or contribute to satisfying the...

3 Delivery and site handling 3.1 The slabs are delivered to site in polythene-wrapped packs. Each pack contains a label bearing the manufacturer’s name, board dimensions and the BBA logo incorporating the number of this Certificate. 3.2 The slabs should be stored clear of the ground, on a clean level surface and preferably under cover to protect them from prolonged exposure to moisture or mechanical damage. 3.3 It is recommended that dust masks, gloves and long-sleeved clothing are worn during the cutting and handling of the products. 3.4 Damaged, contaminated or wet products must not be...

• resistance to sound transmission when flanking separating walls and floors. Buildings over 12 metres high and up to and including 25 metres high 4.9 Where the walls of a building are between 12 and 25 metres high, the following requirements also apply: • from ground level, the maximum height of a continuous cavity must not exceed 12 metres. Above 12 metres, the maximum height of continuous cavity must not exceed 7 metres. In both cases, breaks should be in the form of continuous horizontal cavity trays and weepholes discharging to the outside • the area to be insulated must not be an...

Junctions 6.3 The products can contribute to maintaining continuity of thermal insulation at junctions with other elements and minimise thermal bridges and air infiltration. Detailed guidance can be found in the documents supporting the national Building Regulations. Advice can also be sought from the Certificate holder. 7 Water resistance 7.1 The products may be used in situations where they bridge the dpc in walls; dampness from the ground will not pass through to the inner leaf provided the wall is detailed in accordance with the requirements and provisions of the national Building...

9 Behaviour in relation to fire The products have a reaction to fire classification* of Class A1 to BS EN 13501-1 : 2007 and are, therefore defined as non-combustible under the national Building Regulations. 10 Maintenance As the products are confined within the wall cavity and have suitable durability (see section 11), maintenance is not required. 11 Durability The products are unaffected by the normal conditions in a wall, and are durable, rot proof, water resistant and sufficiently stable to remain effective as insulation for the life of the building. Installation 12 General 12.1 The...