APPROVAL INSPECTION TESTING CERTIFICATION
Bauder Ltd 70 Landseer Road Ipswich Suffolk IP3 0DH Tel: 01473 257671 Fax: 01473 230761
TECHNICAL APPROVALS FOR CONSTRUCTION
Agrément Certificate
06/4354
e-mail:
[email protected] website: www.bauder.co.uk
Product Sheet 1
BAUDER SINGLE PLY PVC ROOF WATERPROOFING MEMBRANES THERMOFOL U This Agrément Certificate Product Sheet (1) relates to Thermofol U, a range of flexible polyvinylchloride (PVC) polyester-reinforced membranes, for use as single-ply roof waterproofing membranes. (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 Weathertightness — the membranes will resist the passage of moisture into the building (see section 6). Properties in relation to fire — tests indicate that the membranes will enable a roof to be unrestricted under the Building Regulations (see section 7). Resistance to wind uplift — the membranes will resist the effects of any likely wind suction acting on the roof (see section 8). Resistance to foot traffic — the membranes will accept the limited foot traffic and loads associated with installation and maintenance (see section 9). Durability — under normal service conditions the membranes will provide a durable roof waterproofing with a service life in excess of 30 years (see section 11). The BBA has awarded this Certificate to the company named above for the products described herein. These products have been assessed by the BBA as being fit for their intended use provided they are installed, used and maintained as set out in this Certificate. On behalf of the British Board of Agrément Date of Third issue: 23 October 2013 Originally certificated on 11 July 2006
Simon Wroe Head of Approvals — Materials
Claire Curtis-Thomas 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 Bucknalls Lane Watford Herts WD25 9BA
©2013 Page 1 of 8
tel: 01923 665300 fax: 01923 665301 e-mail:
[email protected] website: www.bbacerts.co.uk
Regulations In the opinion of the BBA, Thermofol U, if installed, used and maintained in accordance with this Certificate, will meet or contribute to meeting 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: B4(2)
External fire spread
Comment:
Tests to BS 476-3 : 2004 indicate that on a suitable substructure, the use of the membranes will enable a roof to be unrestricted under this Requirement. See section 7 of this Certificate.
Requirement: C2(b)
Resistance to moisture
Comment:
Tests for water resistance indicate that the membranes, including joints, meet this Requirement. See section 6.1 of this Certificate.
Regulation:
7
Materials and workmanship
The membranes are acceptable. See section 11 and the Installation part of this Certificate.
Comment:
The Building (Scotland) Regulations 2004 (as amended) Regulation:
8(1)(2)
Regulation: Standard:
9 2.8
3.10
7.1(a)
Statement of sustainability
The membranes can contribute to meeting the relevant requirements of Regulation 9, Standards 1 to 6 and therefore will contribute to a construction meeting a bronze level of sustainability as defined in this Standard.
Comment: Regulation:
Precipitation
Tests for water resistance indicate that the use of the membranes, including joints, will enable a roof to satisfy the requirements of this Standard, with reference to clauses 3.10.1(1)(2) and 3.10.7(1)(2). See section 6.1 of this Certificate.
Comment:
Standard:
Building standards applicable to construction Spread from neighbouring buildings
Tests to BS 476-3 : 2004 indicate that the membranes, when applied to a suitable substructure, are regarded as having low vulnerability under clause 2.8.1(1)(2) of this Standard. See section 7 of this Certificate.
Comment:
Standard:
Fitness and durability of materials and workmanship
The use of the membranes satisfies the requirements of this Regulation. See sections 10 and 11 and the Installation part of this Certificate.
Comment:
12
Building standards applicable to conversions
All comments given for the membranes 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) 2012 Regulation:
23(a)(i)(iii)(b)(i) Fitness of materials and workmanship
Comment: Regulation:
28(b)
The membranes are acceptable. See section 11 and the Installation part of this Certificate. Tests for water resistance indicate that the membranes, including joints, meet the requirements of this Regulation. See section 6.1 of this Certificate.
Comment: Regulation: Comment:
Resistance to moisture and weather
36(b)
External fire spread
Tests to BS 476-3 : 2004 indicate that on suitable substructures the use of the membranes will be unrestricted under the requirements of this Regulation. See section 7 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:
1 Description (1.2) and 3 Delivery and site handling of this Certificate.
Additional Information NHBC Standards 2013 NHBC accepts the use of Thermofol U, provided it is installed, used and maintained in accordance with this Certificate, as meeting Technical Requirement R3 in relation to NHBC Standards, Chapter 7.1 Flat roofs and balconies.
Page 2 of 8
CE marking The Certificate holder has taken the responsibility of CE marking the products in accordance with harmonised European Standard EN 13956 : 2005. 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 Thermofol U single-ply membranes are a range of flexible polyester-reinforced plasticised PVC membranes. The 1.5 mm membrane is available in a fleece-backed version. 1.2 The membranes are light grey in colour and manufactured to the nominal characteristics given in Table 1. Table 1 Nominal characteristics Parameters (units)
Membranes(1) U12
U15
U18
U20
U15V
Thickness* (mm)
1.2
1.5
1.8
2.0
1.5(2)
Roll width* (m)(3)
1.5
1.5
1.5
1.5
1.5
Roll length* (m)
20
20
20
20
20
Roll weight (kg)
46
57
67
75
63
Mass per unit area* (kg·m )
1.4
1.8
1.8
2.4
2.3
Tensile force* (N per 50 mm)
1000
1000
1000
1000
1000
–2
19
19
19
20
20
Tear strength* (N)
>180
>200
>200
>200
>300
Dynamic indentation* (mm) hard substrate soft substrate
>300 >600
>400 >700
>500 >800
>600 >900
>700 >1000
Static indentation* (kg) hard substrate soft substrate
>20 >20
>20 >20
>20 >20
>20 >20
>20 >20
Watertightness* (kPa)
10
10
10
10
10
Elongation at break* (%)
Dimensional stability* (%)