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Certificate 07/4442 Don and Low Ltd. Don and Low underlays. Dalpro vapour permeable roof tile underlay for use in warm non-ventilated and cold ventilated roofs. Product sheet 1
Publication Year
2018
Document Status
Current
Abstract
Relates to a composite of water vapour permeable film and non-woven polypropylene fabrics, for use as underlay in warm non-ventilated and cold ventilated pitched roof systems. Key factors assessed are weathertightness, condensation risk, wind loading, strength and durability.
Document History
Fifth issue, dated 30th May 2018. Originally certificated on 23rd July 2007.
Publisher Information
British Board of Agrément
The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.
Bucknalls Lane
Watford
BBA
UK
Website: http://www.bbacerts.co.uk
Email: clientservices@bbacerts.co.uk
Tel: +44 (0) 1923 665300
