Sovereign Chemicals Limited Park Road Barrow-In-Furness Cumbria LA14 4EQ Tel: 01229 870800 Fax: 01229 870850 e-mail: sales@sovchem.co.uk website: www.sovchem.co.uk Agrément Certificate No 08/4534 PRODUCT SHEET 1 SOVEREIGN RADON BARRIERCOAT PRODUCT SCOPE AND SUMMARY OF CERTIFICATE This Certificate relates to Sovereign Radon Barriercoat, a liquid-applied, damp-proof membrane which also restricts the flow of radon, methane and carbon dioxide from landfill and naturally occurring underground sources into 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. KEY FACTORS ASSESSED Resistance to water and water vapour the product will adequately resist the passage of moisture from the ground (see section 5). Resistance to underground gases the product is capable of restricting the ingress of radon, methane and carbon dioxide from landfill and naturally occurring sources into the building (see section 6). Durability the product will remain effective against the ingress of water and water vapour and will restrict the ingress of radon, methane and carbon dioxide for the lifetime of the building (see section 9). The BBA has awarded this Agrément Certificate for Sovereign Radon Barriercoat to Sovereign Chemicals Limited as fit for its intended use provided it is installed, used and maintained as set out in this Agrément On behalf of the British Board of Agrément Date of First issue: 14 March 2008 Head of Approvals Materials 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 2008 website: www.bbacerts.co.uk Page 1 of 8
Regulations In the opinion of the BBA, Sovereign Radon Barriercoat, 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: C1(2) Site preparation and resistance to contaminants The product can contribute to a structure satisfying this Requirement. See sections 6.1 and 6.2 of this Requirement: C2(a) Resistance to moisture When properly installed in a correctly designed structure, the product forms an effective barrier to the movement of water and can contribute to meeting this Requirement. See sections 5.1 and 5.2 of this Requirement: Regulation 7 Materials and workmanship The product is acceptable. See section 9 and the Installation part of this The Building (Scotland) Regulations 2004 (as amended) Regulation: 8(1)(2) Fitness and durability of materials and workmanship The use of the product satisfies the requirements of this Regulation. See sections 8 and 9 and the Installation part of this Regulation: 9 Building standards construction Standard: 3.1 Site preparation harmful and dangerous substances Standard 3.2 Site preparation protection from radon gas The product can contribute to a structure satisfying these Standards, with reference to clauses 3.1.2 (1)(2) to 3.1.8 (1)(2), 3.2.1 (1)(2), 3.2.2 (1) and 3.2.3 (1). See sections 6.1 and 6.2 of this Standard: 3.4 Moisture from the ground The product can contribute to a structure satisfying this Standard, with reference to clauses 3.4.1 (1)(2), 3.4.2 (1)(2), 3.4.6 (1)(2) and 3.4.7 (1)(2). See sections 5.1 and 5.2 of this Regulation: 12 Building standards conversions All comments given for this product under Regulation 9, also apply to this Regulation, with reference to clause 0.12.1 (1)(2) and Schedule 6 (1)(2). (1) Technical Handbook (Domestic). (2) Technical Handbook (Non-Domestic). The Building Regulations (Northern Ireland) 2000 (as amended) Regulation: B2 Fitness of materials and workmanship The product is acceptable. See section 9 and the Installation part of this Regulation: B3(2) suitability of certain materials The product is acceptable. See section 8 of this Regulation: C2(1)(2) Preparation of site and resistance to dangerous and harmful substances The product can contribute to a structure satisfying this Regulation. See sections 6.1 and 6.2 of this Regulation: C4(a) Resistance to ground moisture and weather When properly installed in a correctly designed structure, the product forms an effective barrier to the movement of water and can contribute to meeting this Regulation. See sections 5.1 and 5.2 of this Construction (Design and Management) Regulations 2007 Construction (Design and Management) Regulations (Northern Ireland) 2007 Information in this Certificate may assist the client, CDM co-ordinator, designer and contractors to address their obligations under these Regulations. See section: 2 Delivery and site handling (2.1). Page 2 of 8
Non-regulatory Information NHBC Standards 2007 NHBC accepts the use of Sovereign Radon Barriercoat, when installed and used in accordance with this Certificate, is capable of satisfying the requirements of NHBC Standards, Chapters 4.1 Land quality managing ground conditions, 5.1 Substructure and ground bearing floors, 5.2 Suspended ground floors, 5.3 Drainage below ground, and 8.1 Internal services. Zurich Building Guarantee Technical Manual 2007 In the opinion of the BBA the use of Sovereign Radon Barriercoat when installed and used in accordance with this Certificate, is capable of satisfying the requirements of the Zurich Building Guarantee Technical Manual, Section 3 Substructure, Sub-sections Site investigation, Foundations, Basements, dpc and dpm and Floors, Section 5 Internal/external works, services & finishes, Sub-section Internal works Floors and Section 6 Additional guidance for conversions. General This Certificate relates to Sovereign Radon Barriercoat, a liquid-applied, damp-proof membrane which also restricts the flow of radon, methane and carbon dioxide from landfill and naturally occurring underground sources into buildings. The product can be used in combination with passive and active systems to provide basic or full radon protection in new and existing buildings as described in BRE Report (BR 211 : 1991) Radon : guidance on protective measures for new dwellings. Technical Specification 1 Description 1.1 Sovereign Radon Barriercoat is a green water-based, liquid-applied membrane based on a styrene resin also including, fillers, pigments and other additives. 1.2 The product is manufactured by a batch blending process. Quality control is exercised on the raw materials, during the production process, and on the final product. 1.3 Ancillary materials used during installation include: Expandable PU foam for filling voids of greater than 10 mm diameter around services and penetrations Sovereign Pro-Stick 2000 an elastic construction adhesive for filling voids of less than 10 mm diameter around services and penetrations Sovereign Flexi-Tape a 125 mm wide flexible tape used to provide additional protection at wall and floor junctions, movement joints and around penetrations Sovereign Fleece Collar a preformed collar for sealing around small penetrations Sovereign Hey Di K11 a two coat, brush applied, cementitious waterproofing compound Sovereign Renderlite Renovating Plaster a lightweight cementitious backing plaster Sovereign Renderlite Finishing Plaster a gypsum-based finishing plaster. 2 Delivery and site handling 2.1 The product is supplied in 15 kg containers bearing the marketing company s name, batch number, and the BBA identification mark incorporating the number of this 2.2 The product should be stored between temperatures of 5 C and 30 C during transit, and when stored on site. 2.3 The product has a shelf-life of 12 months when stored in sealed containers. Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Sovereign Radon Barriercoat. Design Considerations 3 Use 3.1 Sovereign Radon Barriercoat is satisfactory for use as a damp-proof membrane under concrete floor slabs and cementitious screeds and on basement walls under cement/sand and gypsum-based plasters in accordance with CP 102 : 1973 and BS 8102 : 1990, and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. Page 3 of 8
3.2 Where the product is to act as a gas-resistant membrane, it may be continued up interior walls and finished with a cementitious or gypsum-based plaster as required to form a continuous barrier. 4 Practicability of installation Installation can be carried out by operatives with experience in using this type of product. 5 Resistance to water and water vapour 5.1 The product, will adequately resist the passage of moisture from the ground and so meet the requirements of the national Building Regulations as defined in: England and Wales Approved Document C, Requirement C2(a) Scotland Mandatory Standard 3.4, clauses 3.4.1 (1)(2) to 3.1.8 (1)(2), 3.2.1 (1)(2), 3.2.2 (1) and 3.2.3 (1) (1) Technical Handbook (Domestic). (2) Technical Handbook (Non-Domestic). Northern Ireland Regulation C4. 5.2 The product is impervious to water and will give a waterproof layer capable of accepting minor structural movements without damage. 5.3 When tested in accordance with BS EN ISO 12572 : 2001, Condition A, the water vapour resistance of a 0.70 mm thickness of the product was 145 MNsg 1. 6 Resistance to underground gases 6.1 The membrane is capable of restricting the ingress of radon, methane and carbon dioxide from landfill and naturally occurring sources into the building. 6.2 BRE Report (BR 211 : 1991) Radon : Guidance on protective measure for new dwellings, BRE Report (BR 376 : 1999) Radon : Guidance on protective measures for new dwellings in Scotland, BRE Report (BR 413 : 2001) Radon : Guidance on protective measures for new dwellings in Northern Ireland, BRE Report (BR 212 : 1991) Construction of new buildings on gas-contaminated land and BR Report (BR 414 : 2001) Protective measures for houses on gascontaminated land recommend 300 µm thick polyethylene as the minimum required thickness for a gas-resistant membrane. It is generally accepted that other materials with comparable or higher gas resistance can be suitable, provided they can withstand the construction processes. Test data indicate that the product s resistance to radon, methane and carbon dioxide is greater than a 300 µm thick polyethylene sheet. 7 Resistance to puncture 7.1 The product can be punctured by sharp objects and care should be taken in handling materials over the exposed surface. 7.2 Provided sufficient care is taken, the product will not be damaged by normal foot traffic. 8 Maintenance and repair Any damaged or loose product should be removed by cutting back to sound material. The damaged area should be checked to ensure it is sound. The area should be cleaned using water to remove any dust or debris and, allowed to dry. Two coats of the product are applied to the damaged area as described in section 11.6 ensuring that the application is extended by 150 mm beyond the area being repaired. 9 Durability In normal circumstances, the product will remain effective against the ingress of water and water vapour through the ground slab and basement walls and will restrict the ingress of radon, methane and carbon dioxide for the lifetime of the building. Installation 10 General 10.1 Buildings in areas of risk from landfill gas should be designed and constructed in accordance with BRE Report BR 211 (BR 376 in Scotland and BR 413 in Northern Ireland) BR 414 and the recommendations laid out in BR 212. 10.2 Where required to act as a gas-resistance membrane, particular care should be taken to ensure that the product is incorporated into the building as part of a complete system to prevent the ingress or build-up of contaminants; this may require the use of additional methods such as sumps, ventilation. 10.3 An initial site survey should be carried out by a suitably qualified individual to establish the required level of protection (see sections 10.1 and 10.2). Page 4 of 8
10.4 Installation of the product should be carried out in accordance with the Certificate holder s instructions, the relevant clauses of BS 8000-4 : 1989, BS 8102 : 1990 and CP 102 : 1973. 10.5 The product should not be installed in wet conditions or at temperatures below 7 C. 10.6 The product is suitable for application to substrates of concrete, brickwork and concrete blockwork (dense and lightweight). The product is not suitable for use directly over beam and block flooring. 10.7 For tanking applications, the product is suitable for use with Sovereign Hey Di K11. 11 Procedure 11.1 The substrate must have a smooth finish or a light even texture free from voids, projections and mortar deposits. Surfaces should be clean, sound and free from dust, standing surface water and loose material. 11.2 When applying the product to porous or high-suction substrates, the surface should first be wetted to ensure that it is damp but free from standing water prior to application. 11.3 For large service penetrations any gaps around the penetration are filled either with expanding PU foam (for gaps greater than 10 mm) or Sovereign Pro-Stick 2000 (for gaps less than 10 mm), left to cure for a minimum of 24 hours and cut flush with the substrate. Two coats of Sovereign Radon Barriercoat are applied around the penetration and over any gap filler and extended up the penetration by 150 mm. The second coat should be applied as soon as the first has become touch dry. A collar of Sovereign Pro-Stick 2000 is applied around the penetration over the coating and left to cure for 24 hours. 11.4 For smaller service penetrations the product is applied to the substrate around the penetration and to the back of a preformed fleece collar. The collar is placed over the penetration and pressed in to the wet coating, once dry a second coat is applied over the collar and the surrounding substrate. 11.5 In either case, once the penetrations are sealed, the surrounding area is coated as described in sections 11.6 and 11.7 overlapping the joint 150 mm on each side of the penetration. 11.6 The product is applied in two coats by brush, roller or airless spray at a total coverage rate of 2 kgm 2 to give a finished dry film thickness of 1 mm. 11.7 The second coat should be applied at right angles once the first coat has become touch dry and within 24 hours of applying the first coat. The advice of the Certificate holder should be sought where this cannot be achieved. 11.8 In areas of movement or high stress such as wall/floor junctions or over movement joints, Sovereign Flexi-Tape is installed. The tape is rolled into the wet first coat across the joint and subsequently recoated once the first coat has dried to a tacky condition. If the walls are not true the tape maybe cut in to manageable lengths and overlapped. 11.9 Where internal walls are already constructed and have an existing physical barrier (ie plastic membrane) the coating should be continued 150 mm up the wall. 11.10 All joints in the substrate should be opened up using an angle grinding tool and filled with a sand/cement/ SBR mix in accordance with the Certificate holder s instructions. Once dry, the joint should be coated with the product, extending the application 150 mm beyond the filled joint. Sovereign Flexi-Tape is embedded into the first coat along the length of the joint and the second coat of the product applied (see Figure 1). Day joints may be formed by overlapping the previous application by 150 mm with a further two coats of the product. Figure 1 Formation of a construction joint Flexi-Tape, bedded into first coat of Sovereign Radon Barriercoat immediately after application ie into the wet coating second coat of Sovereign Radon Barriercoat substrate crack/joint opened up with an angle grinder and filled with 3:1 sand:cement, gauged with SBR:water 1.3 11.11 Where the product is to be used as a radon barrier, consideration should be given to post-installation monitoring to confirm the effectiveness of the system and any necessary additional measures taken as appropriate as described in BRE Report (BR 211 : 1991). 12 Finishing Once installed the product is vulnerable to damage and should not be left permanently exposed. The product should be finished with a suitable concrete or cementitious screed or Sovereign Renderlite Renovating Plaster and Sovereign Renderlite Finishing Plaster. Any damage to the membrane should be made good (as described in section 8) prior to overcoating. Page 5 of 8
13 Fixings 13.1 Service penetrations or fixing through the membrane should be kept to a minimum. Where unavoidable, they should be sealed so as to be gas-tight in accordance with sections 11.3 to 11.4. 13.2 Where the use of fixings is unavoidable they should be sealed using Sovereign Pro-Stick 2000 in accordance with the Certificate holder s instructions. Technical Investigations 14 Tests 14.1 Tests were carried out to determine: resistance to water under pressure tensile adhesion to concrete, lightweight block, brick, Hey Di K11, gypsum plaster and cement/sand plaster, including the effect of heat ageing and water soak tensile adhesion of a day joint resistance to chisel impact resistance to static and dynamic indentation resistance to fatigue movement. 14.2 An examination was made of data relating to: water vapour permeability permeability to carbon dioxide permeability to methane permeability to radon. 15 Investigations 15.1 The manufacturing process was examined, including the methods adopted for quality control, and details were obtained of the quality and composition of materials used. 15.2 A site visit was carried out to assess the practicability of installation with particular reference to junctions, joints and penetrations. Page 6 of 8
Bibliography BS 8000-4 : 1989 Workmanship on building sites Code of practice for waterproofing BS 8102 : 1990 Code of practice for protection of structures against water from the ground BS EN ISO 12572 : 2001 Hygrothermal performance of building materials and products Determination of water vapour transmission properties CP 102 : 1973 Code of practice for protection of buildings against water from the ground Page 7 of 8
Conditions of Certification 16 Conditions 16.1 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. 16.2 References in this Certificate to any Act of Parliament, Statutory Instrument, Directive or Regulation of the European Union, British, European or International Standard, Code of Practice, manufacturers instructions or similar publication, are references to such publication in the form in which it was current at the date of this 16.3 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. 16.4 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. 16.5 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. British Board of Agrément tel: 01923 665300 Bucknalls Lane fax: 01923 665301 Garston, Watford e-mail: mail@bba.star.co.uk Herts WD25 9BA 2008 Page 8 of 8 website: www.bbacerts.co.uk