Electronic Copy Monarflex Geomembranes Ltd Lyon Way St Albans Herts AL4 0LB Tel: 01727 830116 Fax: 01727 858998 CI/SfB (21) Ln9 Agrément Certificate No 00/3668 Designated by Government to issue European Technical Approvals MONARFLEX GAS-RESISTANT DAMP-PROOF MEMBRANES Système de barrière Sperresystem Product THIS CERTIFICATE RELATES TO THE MONARFLEX GAS- RESISTANT DAMP-PROOF MEMBRANES. The membranes are for use in restricting the flow of radon, methane and carbon dioxide from landfill and naturally occurring underground gases into buildings. These Front Sheets must be read in conjunction with the accompanying Detail Sheets, which provide information specific to particular membranes. Regulations Detail Sheet 1 1 The Building Regulations 1991 (as amended) (England and Wales) The Secretary of State has agreed with the British Board of Agrément the aspects of performance to be used by the BBA in assessing the compliance of damp-proof membranes with the Building Regulations. In the opinion of the BBA, the Monarflex Gas-Resistant Damp-Proof Membranes, if used in accordance with the provisions of this Certificate, will meet or contribute to meeting the relevant requirements. Requirement: C2 Dangerous and offensive substances The membranes can contribute to a structure satisfying the requirements of this Regulation. See sections 10.1 and 10.2 of these Front Sheets. Requirement: C4 Resistance to weather and ground moisture When properly installed in a correctly designed structure, the membranes form an effective barrier to the movement of water within the floor, enabling compliance with this Requirement. See section 6.1 of these Front Sheets. Requirement: Regulation 7 Materials and workmanship The product is an acceptable material. See section 12 of these Front Sheets. Readers are advised to check the validity of this Certificate by either referring to the BBA s website (www.bbacerts.co.uk) or contacting the BBA direct (Telephone Hotline 01923 665400).
Electronic Copy 2 The Building Standards (Scotland) Regulations 1990 (as amended) In the opinion of the BBA, the Monarflex Gas-Resistant Damp-Proof Membranes, if used in accordance with the provisions of this Certificate, will satisfy or contribute to satisfying the various Regulations and related Technical Standards as listed below. Regulation: 10 Fitness of materials Standard: B2.1 Selection and use of materials and components The product complies with this Standard. See section 12 of these Front Sheets. Regulation: 16 Preparation of sites and resistance to moisture Standard: G2.1 Preparation of a site The membranes can contribute to a structure satisfying the requirements of this Standard. See sections 10.1 and 10.2 of these Front Sheets. Regulation: 17 Preparation of sites and resistance to moisture Standard: G2.6 Resistance to moisture from the ground Standard: G3.1 Resistance to precipitation When properly installed in a correctly designed structure, the membranes form an effective barrier to the movement of water within the floor, enabling compliance with these Standards. See section 6.1 of these Front Sheets. 3 The Building Regulations (Northern Ireland) 1994 (as amended) In the opinion of the BBA, the Monarflex Gas-Resistant Damp-Proof Membranes, if used in accordance with the provisions of this Certificate, can satisfy the various Building Regulations as listed below. Regulation: B2 Fitness of materials and workmanship The product is an acceptable material. See section 12 of these Front Sheets. Regulation: C2 Preparation of site and resistance to dangerous and harmful substances The membranes can contribute to a structure satisfying the requirements of this Regulation. See sections 10.1 and 10.2 of these Front Sheets. Regulation: C5 Resistance to ground moisture and weather When properly installed in a correctly designed structure, the membranes form an effective barrier to the movement of water within the floor, enabling compliance with this Regulation. See section 6.1 of these Front Sheets. 4 Construction (Design and Management) Regulations 1994 Information in this Certificate may assist the client, planning supervisor, designer and contractors to address their obligations under these Regulations. See section: 1 Description of the relevant Detail Sheet (1.2). 2
Design Data 5 General 5.1 Monarflex Gas-Resistant Damp-Proof Membranes are satisfactory for use as a dpm and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. 5.2 Buildings in areas of risk from landfill gas should be constructed in accordance with BRE 211 Radon: guidance on protective measures for new dwellings and recommendations laid out in BRE Report 212 Construction of new buildings on gascontaminated land. 6 Resistance to water and water vapour 6.1 Tests confirm that the membranes and joints in the membranes, when completely consolidated, will adequately resist the passage of moisture from the ground and so meet the requirements of the national Building Regulations: England and Wales Approved Document C4, Section 3.3 Scotland Regulation 17, Standard G2.6 Northern Ireland Regulation C5. 6.2 The membranes are impervious to water and will give a waterproof layer capable of accepting minor structural movements without damage. 7 Resistance to puncture 7.1 The membranes can be punctured by sharp objects and care should be taken in handling building materials over the exposed surface. 7.2 Provided there are no sharp objects present on the membrane surface prior to and during installation of the protective layer, the product will not be damaged by normal foot traffic. Electronic Copy 8 Compatibility with other materials The membranes contain an aluminium foil interply which may be subject to corrosion by alkaline conditions if exposure due to damage to the membranes occurs. However, under normal circumstances the membranes are compatible with other materials and products typically used in the same areas with the exception of products containing pitch. 9 Effects of temperature The membranes remain flexible and capable of being formed at the minimum recommended temperatures. 10 Resistance to underground gases 10.1 Examination of data indicates that the membranes are capable of restricting the ingress of methane and carbon dioxide gases from landfill and naturally occurring sources into the building. 10.2 BRE Reports 211 and 212 recommend 300 microns 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. In the opinion of the BBA, the Monarflex Gas-Resistant Damp-Proof Membranes meet this criteria. 11 Maintenance and repair Damage to the dpm s can be adequately repaired by patching prior to the application of protection or backfilling. 12 Durability Artificial ageing tests indicate that a satisfactory retention of physical properties is achieved. The membranes will, in normal circumstances, remain effective against the ingress of water and water vapour and will restrict the ingress of methane and carbon dioxide during the lifetime of the building. 3
Conditions of Certification 13 Conditions 13.1 This Certificate: (a) relates only to the product that is described, installed, used and maintained as set out in this Certificate; (b) is granted only to the company, firm or person identified on the front cover no other company, firm or person may hold or claim any entitlement to this Certificate; (c) has to be read, considered and used as a whole document it may be misleading and will be incomplete to be selective; (d) is copyright of the BBA. 13.2 References in this Certificate to any Act of Parliament, Regulation made thereunder, Directive or Regulation of the European Union, Statutory Instrument, Code of Practice, British Standard, manufacturers instructions or similar publication, shall be construed as references to such publication in the form in which it was current at the date of this Certificate. 13.3 This Certificate will remain valid for an unlimited period provided that the product and the manufacture and/or fabricating process(es) thereof: (a) are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA; Electronic Copy (b) continue to be checked by the BBA or its agents; and (c) are reviewed by the BBA as and when it considers appropriate. 13.4 In granting this Certificate, the BBA makes no representation as to: (a) the presence or absence of any patent or similar rights subsisting in the product or any other product; (b) the right of the Certificate holder to market, supply, install or maintain the product; and (c) the nature of individual installations of the product, including methods and workmanship. 13.5 Any recommendations relating to the use or installation of this product which are contained or referred to in this Certificate are the minimum standards required to be met when the product is used. They do 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 or in the future; nor is conformity with such recommendations to be taken as satisfying the requirements of the 1974 Act or of any present or future 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 installation and use of this product. In the opinion of the British Board of Agrément, Monarflex Gas-Resistant Damp-Proof Membranes are fit for their intended use provided they are installed, used and maintained as set out in this Certificate. Certificate No 00/3668 is accordingly awarded to Monarflex Geomembranes Ltd. On behalf of the British Board of Agrément Date of issue: 18th February 2000 Chief Executive British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: 01923 665301 2000 e-mail: mail@bba.star.co.uk website: www.bbacerts.co.uk For additional information about the Certificate, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel: Hotline 01923 665400, or check the BBA website.
Electronic Copy CI/SfB (21) Ln9 Monarflex Geomembranes Ltd REFLEX SUPER GAS-RESISTANT MEMBRANE Certificate No 00/3668 DETAIL SHEET 2 Product THIS DETAIL SHEET RELATES TO REFLEX SUPER GAS-RESISTANT DAMP-PROOF MEMBRANE. The membrane is for use as a damp-proof membrane and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. This Detail Sheet must be read in conjunction with the Front Sheets, which give the product s position regarding Regulations, general information relating to the product, and the Conditions of Certification. Technical Specification 1 Description 1.1 Reflex Super is a 0.4 mm thick, 7-layer polyethylene membrane incorporating encapsulated aluminium foil and a reinforcing grid. The membrane is sand-coloured and ribbed on the top and silver on the underside and has a smooth finish. 1.2 The nominal dimensions of the membrane are: thickness (mm) 0.4 width (m) 2 roll length (m) (1) 25, 50 roll weight (kg) 21, 42 weight per unit area (kgm 2 ) 0.42 (1) Pre-welded sheets are availabe to order. 1.3 Ancillary products available are: Monobond Gas Barrier Sealant Tape a double-sided tape, 70 mm wide for use of joining side and end overlaps of the membranes Monarflex self adhesive gas membrane for three dimensional sealing and patching. 1.4 Quality control checks are performed during manufacture and on the final product. Final product checks include: thickness width weight per unit area. 2 Delivery and site handling 2.1 Rolls are wrapped in clear polyethylene film, marked with a label bearing the product name, width, length and UK marketing company s address and phone number. 2.2 Rolls must be stacked on a flat surface, kept under cover and protected from mechanical damage. 2.3 Pre-welded sheets are suitably wrapped in polyethylene film and marked with a label bearing the product name, width, length and UK marketing company s address and telephone number. Design Data 3 General Reflex Super Gas-Resistant membrane is satisfactory for use as a damp-proof membrane under concrete, screed and floor slabs in accordance with CP 102 : 1973, Section 2 and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. Readers are advised to check the validity of this Detail Sheet by either referring to the BBA s website (www.bbacerts.co.uk) or contacting the BBA direct (Telephone Hotline 01923 665400).
Installation Electronic Copy Technical Investigations 4 General 4.1 Installation of the membrane is carried out in accordance with the manufacturer s instructions, the relevant clauses of CP 102 : 1973, Section 2, BS 8102 : 1990 and BS 8000 : Part 4 : 1989. 4.2 The membrane can be installed in all normal site conditions provided the air temperature is not below 12 C to prevent the risk of surface condensation. 5 Procedure 5.1 Reflex Super Membrane should be applied to surfaces that have a smooth finish, ie they should be free from voids, projections and mortar deposits. Surfaces should be dry and free from dust and frost. 5.2 Concrete surfaces should be dense. Vertical surfaces of brickwork and blockwork should be dry and rendered to provide an even surface. Brickwork or blockwork not rendered must be flush pointed to give a smooth surface without sudden changes in level. 5.3 Where the Monarflex self adhesive gas membrane is required (ie dusty or porous substrates) the surface should be primed with a Type B primer at the recommended coverage rate, and allowed to dry. Vertical surfaces must always be primed. 5.4 The membrane is rolled out, ensuring that it is properly aligned. All end and side overlaps should be a minimum of 150 mm and prepared in accordance with the manufacturer s instructions. 5.5 All joints where possible should be extrusionwelded. 5.6 The surface of the dpm to be lapped should be dry and dust free. To ensure a watertight bond, and gastight integrity, all laps and joints should be extrusion welded where possible. When using Monobond Gas Barrier Sealant Tape, the joints should be pressed down and well rolled. 5.7 All service penetrations and direction changes should be properly detailed. Service ducts should be vented to prevent the possibility of gas accumulating in confined spaces. 5.8 Any damage to the membrane must be repaired using a patch of Reflex Super Gas- Resistant Membrane welded in place, or a patch of the Monarflex self adhesive gas membrane. All patches must extend a minimum of 150 mm from the damaged area. 5.9 The membrane must extend over the footprint of the building with a stepped damp-proof course separated with a mortar joint. 5.10 The membrane should be covered by a screed or other protective layer as soon as possible after installation. If blockwork protection is used, care must be taken to avoid damage to the membrane during construction. 2 The following is a summary of the technical investigations carried out on Reflex Super Gas Resistant Membrane. 6 Tests The results of the tests carried out by the BBA are typical values for the materials, and summarised in Tables 1 to 3. Table 1 Physical properties general Test (units) Method* Mean results Weight per unit area Direct measurement 0.495 (kgm 2 ) Water vapour permeability BS 3177 0.01 (75% RH/25 C) (gm 2 day 1 ) Water vapour resistance 20520 (MNsg 1 ) *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents. Table 2 Physical properties directional Test (units) Method* Mean results long (1) trans (2) Low temperature (3) MOAT 27 : 5.4.2 flexibility ( C) 30 30 Tensile strength BS 2782 : 326E (N per 25 mm): (100 mm min 1 ) unaged 271 270 heat aged (4) 285 285 UV ageing (5) 265 282 Elongation BS 2782 : 320A (at maximum load) (%): (100 mm min 1 ) unaged 11.6 12.2 heat aged (4) 12.9 12.3 UV ageing (5) 11.7 13.8 Nail tear at MOAT 27 : 5.4.1 maximum load (N) unaged 219 231 heat aged (4) 237 225 Dimensional stability MOAT 27 : 5.1.5 (%) unrestrained 1.0 0.1 (1) Longitudinal direction. (2) Transverse direction. (3) Lowest non-crack temperature ( C). (4) Heat aged at 60 C for 56 days. (5) 100 hours UVB exposure. *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents. Table 3 Service performance (membranes and joints) Test (units) Method* Mean results Chisel impact: 20 C T1/13 (1) puncture, full penetration 0 C puncture, full penetration Resistance to leakage MOAT 27 : 5.2.1 no leakage Tensile strength of joints MOAT 27 : 5.2.2 (N per 50 mm): unaged 271 heat aged (2) 277 (1) BBA test method. (2) Heat aged at 60 C for 28 days. *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents.
7 Other investigations 7.1 The manufacturing process was examined, including the methods adopted for quality control, and details were obtained of the quality and composition of the materials used. 7.2 A site visit was conducted to assess the practicability of installation. 7.3 An evaluation was made of data on the permeability of radon, methane and carbon dioxide in relation to the product. Bibliography BS 2782 Methods of testing plastics Part 3 Mechanical properties Methods 320A to 320F : 1976(1989) Tensile strength, elongation and elastic modulus Electronic Copy BS 3177 : 1959(1997) Method for determining the permeability of water vapour of flexible sheet materials used for packaging BS 8000 Workmanship on building sites Part 4 : 1989 Code of practice for waterproofing BS 8102 : 1990 Code of practice for protection of structures against water from the ground CP 102 : 1973 Code of practice for protection of buildings against water from the ground MOAT No 27 : 1983 General Directive for the Assessment of Roof Waterproofing Systems On behalf of the British Board of Agrément Date of issue: 18th February 2000 Chief Executive 3
Electronic Copy British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: 01923 665301 2000 e-mail: mail@bba.star.co.uk website: www.bbacerts.co.uk For additional information about the Certificate, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel: Hotline 01923 665400, or check the BBA website.
Electronic Copy CI/SfB (21) Ln9 Monarflex Geomembranes Ltd MONARFLEX RAC GAS-RESISTANT MEMBRANE Certificate No 00/3668 DETAIL SHEET 3 Product THIS DETAIL SHEET RELATES TO MONARFLEX RAC GAS-RESISTANT DAMP-PROOF MEMBRANE. The membrane is for use as a damp-proof membrane and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. This Detail Sheet must be read in conjunction with the Front Sheets, which give the product s position regarding Regulations, general information relating to the product, and the Conditions of Certification. Technical Specification 1 Description 1.1 Monarflex RAC Gas-Resistant Membrane is a 0.9 mm thick, 10-layer polyethylene membrane incorporating encapsulated aluminium foil and a reinforcing grid. The membrane is grey-coloured and has a smooth finish. 1.2 The nominal dimensions of the membrane are: thickness (mm) 0.9 width (m) 2 roll length (m) (1) 25 roll weight (kg) 45 weight per unit area (kgm 2 ) 0.90 (1) Pre-welded sheets are available to order. 1.3 Ancillary products available are: Monobond Gas Barrier Sealant Tape a doublesided tape, 70 mm wide for use of joining side and end overlaps of the membranes Monarflex self adhesive gas membrane for three-dimensional sealing and patching. 1.4 Quality control checks are performed during manufacture and on the final product. Final product checks include: thickness width weight per unit area. 2 Delivery and site handling 2.1 Rolls are wrapped in clear polyethylene film, marked with a label bearing the product name, width, length and UK marketing company s address and phone number. 2.2 Rolls must be stacked on a flat surface, kept under cover and protected from mechanical damage. 2.3 Pre-welded sheets are suitably wrapped in polyethylene film and marked with a label bearing the product name, width, length and UK marketing company s address and telephone number. Design Data 3 General Monarflex RAC Gas-Resistant Membrane is satisfactory for use as a damp-proof membrane under concrete, screed and floor slabs in accordance with CP 102 : 1973, Section 2 and to restrict the ingress of radon, methane and carbon dioxide gases into buildings from landfill and naturally occurring sources. Readers are advised to check the validity of this Detail Sheet by either referring to the BBA s website (www.bbacerts.co.uk) or contacting the BBA direct (Telephone Hotline 01923 665400).
Installation Electronic Copy Technical Investigations 4 General 4.1 Installation of the membrane is carried out in accordance with the manufacturer s instructions, the relevant clauses of CP 102 : 1973, Section 2, BS 8102 : 1990 and BS 8000 : Part 4 : 1989. 4.2 The membrane can be installed in all normal site conditions provided the air temperature is not below 12 C to prevent the risk of surface condensation. 5 Procedure 5.1 Monarflex RAC Gas-Resistant Membrane should be applied to surfaces that have a smooth finish, ie they should be free from voids, projections and mortar deposits. Surfaces should be dry and free from dust and frost. 5.2 Concrete surfaces should be dense. Vertical surfaces of brickwork and blockwork should be dry and rendered to provide an even surface. Brickwork or blockwork not rendered must be flush pointed to give a smooth surface without sudden changes in level. 5.3 Where the Monarflex self adhesive gas membrane is required (ie dusty or porous substrates) the surface should be primed with a Type B primer at the recommended coverage rate, and allowed to dry. Vertical surfaces must always be primed. 5.4 The membrane is rolled out, ensuring that it is properly aligned. All end and side overlaps should be a minimum of 150 mm and prepared in accordance with the manufacturer s instructions. 5.5 All joints where possible should be extrusionwelded. 5.6 The surface of the dpm to be lapped should be dry and dust free. To ensure a watertight bond, and gastight integrity, all laps and joints should be extrusion welded where possible. When using Monobond Gas Barrier Sealant Tape, the joints should be pressed down and well rolled. 5.7 All service penetrations and direction changes should be properly detailed. Service ducts should be vented to prevent the possibility of gas accumulating in confined spaces. 5.8 Any damage to the membrane must be repaired by using a patch of RAC Gas-Resistant Membrane and welded in place, or a patch of Monarflex self adhesive gas-membrane. All patches must extend a minimum of 150 mm from the damaged area. 5.9 The membrane must extend over the footprint of the building with a stepped damp-proof course separated with a mortar joint. 5.10 The membrane should be covered by a screed or other protective layer as soon as possible after installation. If blockwork protection is used, care must be taken to avoid damage to the membrane during construction. 2 The following is a summary of the technical investigations carried out on Monarflex RAC Gas- Resistant Membrane. 6 Tests The results of the tests carried out by the BBA are typical values for the materials, and summarised in Tables 1 to 3. Table 1 Physical properties general Test (units) Method* Mean results Weight per unit area Direct measurement 0.902 (kgm 2 ) Water vapour permeability BS 3177 0.01 (75% RH/25 C) (gm 2 day 1 ) Water vapour resistance 20520 (MNsg 1 ) *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents. Table 2 Physical properties directional Test (units) Method* Mean results long (1) trans (2) Low temperature (3) MOAT 27 : 5.4.2 flexibility ( C) 30 30 Tensile strength BS 2782 : 326E (N per 25 mm): (100 mm min 1 ) unaged 393 363 Change in tensile strength (%) heat aged (4) 5 5 UV ageing (5) 2 4 Elongation BS 2782 : 320A (at maximum load) (%): (100 mm min 1 ) unaged 15.8 13.8 Change in elongation (%) heat aged (4) 11 0.8 UV ageing (5) 0.8 13 Nail tear at MOAT 27 : 5.4.1 maximum load (N): unaged 424 449 heat aged (4) 8 3 Dimensional stability MOAT 27 : 5.1.5 (%) unrestrained 0.5 +0.1 (1) Longitudinal direction. (2) Transverse direction. (3) Lowest non-crack temperature ( C). (4) Heat aged at 60 C for 56 days. (5) 100 hours UVB exposure. *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents. Table 3 Service performance (membranes and joints) Test (units) Method* Mean results Chisel impact: 20 C T1/13 (1) severe indentation 0 C severe indentation Tensile strength of joints MOAT 27 : 5.2.2 (N per 50 mm): unaged 333 (1) BBA test method *The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents.
7 Other investigations 7.1 The manufacturing process was examined, including the methods adopted for quality control, and details were obtained of the quality and composition of the materials used. 7.2 A site visit was conducted to assess the practicability of installation. 7.3 An evaluation was made of data on the permeability of radon, methane, and carbon dioxide in relation to the product. Bibliography BS 2782 Methods of testing plastics Part 3 Mechanical properties Methods 320A to 320F : 1976(1989) Tensile strength, elongation and elastic modulus Electronic Copy BS 3177 : 1959(1997) Method for determining the permeability of water vapour of flexible sheet materials used for packaging BS 8000 Workmanship on building sites Part 4 : 1989 Code of practice for waterproofing BS 8102 : 1990 Code of practice for protection of structures against water from the ground CP 102 : 1973 Code of practice for protection of buildings against water from the ground MOAT No 27 : 1983 General Directive for the Assessment of Roof Waterproofing Systems On behalf of the British Board of Agrément Date of issue: 18th February 2000 Chief Executive 3
Electronic Copy British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: 01923 665301 2000 e-mail: mail@bba.star.co.uk website: www.bbacerts.co.uk For additional information about the Certificate, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel: Hotline 01923 665400, or check the BBA website.