POLTERM MAX PLUS FOR USE IN TIMBER OR STEEL FRAME CONSTRUCTIONS
13Pages

Agrement Certificate 19/5672 Product Sheet 2 Saint-Gobain Isover UK Limited Whitehouse Industrial Estate Runcorn Cheshire WA7 3DP Tel: 0115 945 1143 e-mail: isover.enquiries@saint-gobain.com website: www.isover.co.uk This Agrement Certificate Product Sheet(1) relates to Polterm Max Plus for use in Timber or Steel Frame Constructions, a mineral wool insulation slab for use as thermal insulation on new and existing conventional timber- or steel-frame walls. The product is used as an insulated sheathing in domestic and non-domestic buildings with a masonry outer leaf. (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. KEY FACTORS ASSESSED Thermal performance — the product has a declared thermal conductivity (Ad) of 0.035 W-m-1-K-1 (see section 6). Condensation risk — the product can contribute to limiting the risk of condensation (see section 7). Behaviour in relation to fire — the product is classified as Class A1 in accordance with BS EN 13501-1 : 2007 (see section 8). Durability — the product will have a life equivalent to that of the wall structure in which it is incorporated (see section 11). 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 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, Polterm Max Plus for use in Timber or Steel Frame Constructions, 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(1)(4) Internal fire spread (structure) Comment: The use of the product is unrestricted by this Requirement. See...

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 2019 In the opinion of the BBA, subject to a 50 mm minimum residual cavity being maintained, NHBC accepts the use of Polterm Max Plus for use in Timber or Steel Frame Constructions,...

CE marking The Certificate holder has taken the responsibility of CE marking the product in accordance with harmonised European Standard BS EN 13162 : 2012. An asterisk (*) appearing in this Certificate indicates that data shown are given in the manufacturer’s Declaration of Performance. Technical Specification 1 Description 1.1 Polterm Max Plus for use in Timber or Steel Frame Constructions comprises slabs of rigid stone mineral wool (MW) treated with a water-repellent additive with a black glass tissue facer on one face. The slabs have the nominal characteristics shown in Table 1. Table 1...

3.3 It is recommended that dust masks, gloves and long-sleeved clothing are worn when cutting and handling the slab. 3.4 Damaged, contaminated or wet slabs must not be used. Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Polterm Max Plus for use in Timber or Steel Frame Constructions. Design Considerations 4 Use 4.1 Polterm Max Plus for use in Timber or Steel Frame Constructions is effective for use as a partial fill cavity wall insulation in reducing the U value (thermal transmittance) of external walls of...

the degree of site supervision or control available, and for the limitations in respect of exposure of the proposed building (as set out in Table 2). Table 2 Maximum allowable total exposure factors of different constructions 4.11 From ground level, the maximum height of continuous cavity walls must not exceed 12 metres; above 12 metres, the maximum height of continuous cavity walls 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. 4.12 An external render coat or other suitable finish should...

Polterm Max Plus thickn ess Polterm Max Plus thickness (clear 140 mm timber frame) (fully filled 140 mm timber frame) (1) Construction, external to internal, comprises: 102.5 mm brick (X = 0.77 W-m-1-K-1), 50 mm clear cavity, Isover Polterm Max Plus, breather membrane, 9 mm OSB (oriented strand board) sheathing board (X = 0.13 W-m-1-K-1), 140 mm timber frame (15% fraction), vcl and 15 mm plasterboard (X = 0.25 W-m-1-K-1). (2) Calculations based upon 4.4 stainless steel cavity wall ties per m2 (6.6 mm2 cross-sectional area, X = 17 W-m-1-K-1). (3) Insulation installed against the sheathing...

 stone mineral wool insulation – 1  glass tissue facer – 0.15. 7.3 If the product is to be used on the external walls of rooms expected to have high humidity, care must be taken to provide adequate permanent ventilation to avoid possible problems from the formation of interstitial condensation in the internal wall leaf. 7.4 A vcl should be used in steel and timber constructions, should the condensation risk analysis show this is necessary. Surface condensation 7.5 Walls will adequately limit the risk of surface condensation when the thermal transmittance (U value) does not exceed 0.7...