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APPROVAL INSPECTION TESTING CERTIFICATION TECHNICAL APPROVALS FOR CONSTRUCTION

Guaranteed Asphalt Ltd

Agrément Certificate

2 Mercury Way London SE14 5RR Tel: 020 7277 8773 Fax: 020 7639 5616

00/3701

Product Sheet 2

GUARAFLEX R WATERPROOFING SYSTEMS GUARAFLEX R TANKING SYSTEM PRODUCT SCOPE AND SUMMARY OF CERTIFICATE This Certificate relates to Guaraflex R Tanking System, based on a polymer-modified mastic asphalt. The system is for use in internal and external waterproofing and damp-proof applications. 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 Weathertightness — the system will resist the passage of moisture into the building (see section 5). Resistance to mechanical damage — the system will accept the limited foot traffic and loads associated with the installation and maintenance of the system and the effects of thermal or other minor movement likely to occur in practice without damage (see section 6). Durability — under normal service conditions the system will provide an effective barrier to the transmission of liquid water and water vapour for the design life of the structure in which it is incorporated (see section 8).

The BBA has awarded this Agrément Certificate to the company named above for the system described herein. This system has been assessed by the BBA as being fit for its intended use provided it is installed, used and maintained as set out in this Certificate. On behalf of the British Board of Agrément

Date of First issue: 12 January 2009 Originally certificated on 30 March 2000

Simon Wroe Head of Approvals — Materials

Greg Cooper Chief Executive

Certificate amended on 4 January 2010 to include revised description of Guarafelt CP and Guarafelt CP Super. 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 Bucknalls Lane Garston, Watford Herts WD25 9BA

©2009 Page 1 of 12

tel: 01923 665300 fax: 01923 665301 e-mail: mail@bba.star.co.uk website: www.bbacerts.co.uk


Regulations In the opinion of the BBA, Guaraflex R Tanking System, 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:

C2(a)

Requirement:

Resistance to moisture

Tests for water resistance on the system indicate that it will enable a structure to satisfy this Requirement. See sections 5.1 and 5.2 of this Certificate.

Comment: Regulation 7

Materials and workmanship

The system is acceptable. See section 8 and the Installation part of this Certificate.

Comment:

The Building (Scotland) Regulations 2004 (as amended) Regulation:

8(1)(2)

Regulation: Standard:

9 3.4

Building standards — construction Moisture from the ground

Tests for water resistance on the system indicate that it will enable a roof to satisfy the requirements of this Standard, with reference to clauses 3.4.2(1)(2) and 3.4.7(1)(2). See sections 5.1 and 5.2 of this Certificate.

Comment: Regulation:

Fitness and durability of materials and workmanship

The use of the system satisfies the requirements of this Regulation. See sections 7, 8 and the Installation part of this Certificate.

Comment:

12

Building standards — conversions

All comments given for the system under Regulation 9, also apply to this Regulation, with reference to clause 0.12.1(1)(2) and Schedule 6(1)(2).

Comment:

(1) Technical Handbook (Domestic). (2) Technical Handbook (Non-Domestic).

The Building Regulations (Northern Ireland) 2000 (as amended) Regulation:

B2

The system is acceptable. See section 8 and the Installation part of this Certificate.

Comment: Regulation:

B3(2)

Suitability of certain materials

The system does not normally require maintenance. See section 7 of this Certificate.

Comment: Regulation:

Fitness of materials and workmanship

C4(a)

Comment:

Resistance to ground moisture and weather

Tests for water resistance on the system indicate that it will enable a roof to satisfy the requirements of this Regulation. See sections 5.1 and 5.2 of this Certificate.

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, 2.2 and 2.3) and the Installation part of this Certificate.

Non-regulatory Information NHBC Standards 2008 NHBC accepts the use of Guaraflex R Tanking System, when installed and used in accordance with this Certificate, as meeting Technical Requirement R3 in relation to NHBC Standards, Chapter 5.1 Substructure and ground bearing floors, clause M10 Tanking materials.

Zurich Building Guarantee Technical Manual 2007 In the opinion of the BBA, Guaraflex R Tanking System, when installed and used in accordance with this Certificate, satisfies the requirements of the Zurich Building Guarantee Technical Manual, Section 3, Substructure, Sub-section Basements.

General This Certificate relates to Guaraflex R Tanking System comprising Guaraflex PR polymer-modified mastic asphalt waterproofing. The system is for use in internal and external waterproofing and damp-proof applications. The product is laid using the traditional techniques for mastic asphalt described in the relevant Clauses of BS 8218 : 1998 and the Certificate holder’s instructions. Guaraflex PR is manufactured in the UK and marketed by the Certificate holder, and may be delivered to site in either hot charge or block form. Page 2 of 12


Technical Specification 1 Description 1.1 Guaraflex PR is a waterproofing grade polymer-modified mastic asphalt manufactured by blending bitumen, graded aggregates, filler and polymer using conventional techniques. 1.2 Other products used with Guaraflex PR include: • Guarafelt CP — 2 mm thick, polymer-modified glassfibre mat reinforced bitumen membrane • Guarafelt CP Super — 4 mm thick, polymer-modified glassfibre mat reinforced bitumen membrane. 1.3 Typical Guaraflex R Tanking specifications, descriptions and uses are detailed in Figure 1. Quality control 1.4 Quality control checks are performed on incoming raw materials, during production and on the finished material.

2 Delivery and site handling 2.1 Guaraflex PR is supplied in hot charge (molten) form, delivered to site in purpose-built transporters. The product information is supplied on the relevant delivery notes with each consignment. The manufacturer’s material safety data sheet should be consulted prior to discharging and handling the molten product. 2.2 Alternatively, the product may be supplied in block form (similar to traditional mastic asphalt) with labels bearing the product type and name. Each block weighs approximately 16 kg and should be stored in the same manner as traditional mastic asphalt. 2.3 The bitumen primer is supplied in 5 litre and 25 litre drums. The product is classified under The Chemicals (Hazard Information and Packaging for Supply) Regulations 2002 (CHIP3) and bears the appropriate hazard warning label. The flashpoint and hazard classification are given in Table 1. 2.4 Guaraflash and Guarafelt membranes are supplied in rolls and should be stored on end on a clean, level surface away from heat and protected from inclement weather.

Table 1

Flashpoint and hazard classification of the bitumen primer

Flashpoint (°C) 36

Classification Flammable(1), Harmful

(1) The product should be stored in accordance with the Highly Flammable Liquids and Liquefied Petroleum Gases Regulations (1972).

Assessment and Technical Investigations The following is a summary of the technical investigations carried out on the Guaraflex R Tanking System.

Design Considerations 3 Use 3.1 Guaraflex R Tanking System is satisfactory for use as below ground waterproofing on substrates of; concrete, brickwork, blockwork or masonry constructions, or as a damp-proof membrane for solid floors (see Figure 1). 3.2 The membrane is compatible with the substrate listed in section 3.1 and is resistant to those chemicals likely to occur in normal practice. If doubt arises on the compatibility with other materials, the advice of the manufacturer should be sought.

Page 3 of 12


Figure 1

Design specification

4 2 ground level

1

1

3

8(11)

stage 1

9

5

10

7

2

6 floor

7

8

6

9

12

1 Externally-applied Guaraflex PR tanking to concrete

2 Tanking detail of 'pick up' in sequence

structural reinforced concrete 20 mm three-coat Guaraflex PR with fillet to horizontal 25 mm ⍝ 25 mm chase cast in concrete cement mortar pointing paving slab (75 mm gap filled with gravel) protecting wall (brickwork)

7 8 9 10 11 12

40 mm space flushed up with mortar (course by course) 50 mm protective sand/cement screed 30 mm three-coat Guaraflex PR concrete base building paper (under pick-up only) two-coat fillet

1 (column)

4 ground level

stage 3

(see opposite diagram)

10

1 2 3 4 5 6

stage 2

8(11) (removed)

3 1 (wall and floor)

1 6

7 2

8

2

9

1 (pile cap)

10 8

piles 9

3 Externally-applied Guaraflex PR tanking under foundations

4 Externally-applied Guaraflex PR tanking over pile caps or under column bases

Page 4 of 12


Figure 1

Design specification (continued)

3 1 (floor) 6

1 (floor) ground level 5

4

2

2 5 6

1 (loading slab)

7

6 7

8

1 (wall/floor) 6 Internally-applied Guaraflex PR tanking

5 Externally-applied Guaraflex PR tanked basement as a sump or inspection chamber

1 (wall/floor)

stage 1

7

stage 2

pipe detail (see opposite) 9

2

stage 3 20 mm three-coat two-coat angle fillet stage 4

7a Guaraflex PR lining to cold water storage tanks

20 mm two-coat

30 mm three-coat

3

7b Provision of service pipe passing through Guaraflex PR tanking or tank lining

4 9 pipe 1 2 3 4 5 6 7 8 9

5

2

6 8

7 8 Guaraflex PR lining to catch pit for discharge of hot liquid

Page 5 of 12

structural reinforced concrete 20 mm three-coat Guaraflex PR with fillet to horizontal 25 mm ⍝ 25 mm chase cast in concrete and cut in brickwork protecting wall (brickwork) 40 mm space flushed up with mortar (course by course) 50 mm protective sand/cement screed 30 mm three-coat Guaraflex PR concrete base Guaraflex PR sleeve to pipe


4 Practicability of installation The product can be installed readily by operatives experienced with this type of product.

5 Weathertightness 5.1 Test data confirm that the system will adequately resist the passage of water and water vapour to the inside of the building and so enable a structure to comply with the relevant requirements of the national Building Regulations. 5.2 When used in the systems described, it will provide a weathertight layer capable of accepting minor structural movements without leakage.

6 Resistance to mechanical damage 6.1 Tests indicate that the system can accommodate, without damage, the thermal movement likely to occur in practice and the limited foot traffic and light concentrated loads associated with installation and maintenance operations. 6.2 Reasonable care is required, however, to avoid prolonged loading by sharp objects, (see the Technical Investigations section Table for Performance tests).

7 Maintenance As the product is confined within a structure and has suitable durability, maintenance is not required.

8 Durability Guaraflex R, when fully protected and subjected to normal service conditions, will provide an effective barrier to the transmission of liquid water and water vapour for the design life of the structure in which it is incorporated.

Installation 9.1 Surfaces must be dry, clean, and free from sharp projections and concrete nibs. 9.2 Guaraflex R Tanking System must be installed in accordance with the relevant requirements of CP 102 : 1973, Section 2, BS 8102 : 1990 and the manufacturer’s instructions. 9.3 Concrete substrates must be wood float or shutter finish and free from large voids and sharp projections such as concrete nibs. Any abrupt irregularities greater than 3 mm must be removed or filled prior to application. 9.4 New concrete should be well compacted and finished, preferably by power floating and power trowelling, without excessive laitance, to a dense, smooth finish free from defects. Concrete toppings/screeds should be properly formulated, applied and compacted. They should be bonded to the substrate and have a wood-floated finish with minimum laitance. 9.5 A minimum curing period of 28 days is normally allowed before installing the product on new concrete substrates. 9.6 Substrates should be free from physical defects such as cracks. Small surface defects can be filled with a proprietary mortar. 9.7 The surface must be dry, clean and free from loose particles, paint, grease and oil, or other contaminants which may affect the application of the product. 9.8 When application is made to an old substrate the advice of the Certificate holder must be sought. 9.9 Installation of the waterproofing layer should be carried out using the techniques for laying mastic asphalt described in the relevant Clauses of BS 8218 : 1998. Where not controlled by hot charge delivery, advice on the laying temperature should be obtained from the Certificate holder. 9.10 If required, Guaraflex PR waterproofing, can be applied over Guaraflex CP or Guaraflex CP Super felt isolating membranes. 9.11 Gauges should be used to ensure the correct thickness of Guaraflex PR and to provide a bonding edge between adjacent bays of asphalt. 9.12 The membrane should be protected against damage from construction activities as soon as possible after application. The vertical membrane can be protected with a brick or block wall. Pipe detailing [see Figure 1(7.b)] 9.13 Pipes manufactured from coated or uncoated cast-iron mild steel or pitch fibre pipes are cleaned and brushed prior to painting with a primer coat. The primed pipe is sleeved with two coats of Guaraflex PR tanking. 9.14 The Guaraflex PR sleeve portion of the pipe to be built into the structure must project 75 mm before further Guaraflex PR is applied.

Page 6 of 12


9.15 Guaraflex PR Tanking is then applied up to the Guaraflex PR sleeve which is warmed and cleaned to ensure a sound joint. Additional coats are applied as a collar over the Guaraflex PR and pipe (clipped if necessary) and finished with an application of a two-coat angle fillet. 9.16 A protecting wall is constructed if the tanking is external or a loading wall or slab if the tanking is internal.

10 Repair Any damage to the system must be repaired as soon as possible and before the application of the surface protection. The system may be repaired by removing the damaged area and reinstating the system to the original specification. The advice of the Certificate holder should be sought.

Technical Investigations 11 Tests The BBA obtained samples of the Guaraflex PR asphaltic cement and Guaraflex PR for testing. The results of tests on the asphaltic cement and tests for the general physical properties and service performance on Guaraflex PR are given in Tables 2, 3 and 4 respectively.

Table 2

General characteristics — asphaltic cement

Test (units) Ash content (%)

Mean result

Method(1)

0.71

BS 2000-223

Ring and ball softening point (°C)

59

BS 2000-58

Needle penetration at 25°C (dmm)

38

BS 2000-49

(1) The test document is detailed in the Bibliography. Numbers in the table refer to sections/parts of the document.

Table 3

General physical properties — Guaraflex PR

Test (units) Density (kgm–3) 10 mm Guaraflex PR Weight per unit area (kgm–2) 10 mm Guaraflex PR Tensile strength (Nmm–2) 10 mm Guaraflex PR unaged 56 days heat aged at 70°C 180 days heat aged at 70°C Elongation (%) 10 mm Guaraflex PR unaged 56 days heat aged at 70°C 180 days heat aged at 70°C

Mean result

direct measurement 2137 direct measurement 22 BS 2782-3.320E 0.62 0.97 1.33 BS 2782-3.320E 3.8 1.9 0.9

Water vapour permeability (gm–2 day) 10 mm Guaraflex PR

Method(1)

BS 3177 (75% RH/25°C) 0.067

(1) The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents.

Page 7 of 12


Table 4

Service performance

Test (units)

Mean result

Method(1)

Resistance to water pressure (6 m head on 10 mm Guaraflex PR)

no penetration

MOAT 27 : Method 5.1.4

Resistance to static indentation at 23°C Guaraflex PR on concrete substrate Hardness at 23°C (dmm) Guaraflex PR unaged heat aged at 70°C for 56 days 180 days 5 cycles(2) 6 hours at 250°C 6 hours at 290°C Hard body impact at –10°C drop height (mm) at +20°C drop height (mm)

MOAT 27 : Method 5.1.9 L4 BS 5284 18 17 20 13 18 29 BBA method(3)

–1000 –1100

small indentation failure of sample

–1000 –1100

small indentation failure of sample

(1) The test documents are detailed in the Bibliography. Numbers in the table refer to sections/parts of the various documents. (2) 1 cycle = 6 hours heating at 240°C and 18 hours cooling at ambient temperature. (3) 1 kg steel ball on Guaraflex PR on concrete substrate.

12 Investigations 12.1 Factory visits were performed to examine the manufacturing and quality control procedures at the production location. 12.2 A user survey was carried out to assess the product’s performance in service.

Additional Information The management systems of Guaranteed Asphalt Ltd have been assessed and registered as meeting the requirements of BS EN ISO 9002 : 1994 by the British Standards Institution Quality Assurance, Certificate Nos KM 07942 and KM 07350.

Page 8 of 12


Bibliography BS 2000-49 : 1993 Methods of test for petroleum and its products — Determination of needle penetration of bituminous material BS 2000-58 : 1993 Methods of test for petroleum and its products — Determination of softening point of bitumen — Ring and ball method BS 2000-223 : 1993 Methods of test for petroleum and its products — Determination of ash of petroleum products containing mineral matter BS 2782-3.320A to 320F : 1976 Methods of testing plastics — Mechanical properties — Tensile strength, elongation and elastic modulus BS 3177 : 1959 Method for determining the permeability to water vapour of flexible sheet materials used for packaging BS 5284 : 1976 Methods. Sampling and testing mastic asphalt and pitchmastic used in building BS 8102 : 1990 Code of practice for protection of structures against water from the ground BS 8218 : 1998 Code of practice for mastic asphalt roofing BS EN ISO 9002 : 1994 Quality systems. Model for quality assurance in production, installation and servicing 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

Page 9 of 12


Conditions of Certification 13 Conditions 13.1 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. 13.2 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 Certificate. 13.3 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. 13.4 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. 13.5 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.

Page 10 of 12


BLANK PAGE Page 11 of 12


British Board of AgrĂŠment Bucknalls Lane Garston, Watford Herts WD25 9BA

Š2009 Page 12 of 12

tel: 01923 665300 fax: 01923 665301 e-mail: mail@bba.star.co.uk website: www.bbacerts.co.uk


GuaraFLEX - Tanking Systems