Alumasc Building Products Ltd. Derbigum roofing membranes. Derbigum Black and Mineral. Product sheet 1

Certificate 86/1593

British Board of Agrément, 2019
Alumasc Building Products Ltd. Derbigum roofing membranes. Derbigum Black and Mineral. Product sheet 1 Download document

Document Status

Current

Supplement

Core Supplement

Series

Certificate

Abstract

Relates to glass and polyester reinforced, atactic polypropylene polymer-modified bitumen membranes to be used as fully- or partially-bonded waterproofing on flat or pitched roofs with limited access, Key factors assessed are weathertightness; properties in relation to fire; resistance to wind uplift, mechanical damage and root penetration; and durability.

History

Fifth issue, dated 14th March 2019, amended 20th October 2020. Supersedes the fourth issue, dated 26th October 2014. Originally certificated on 17th March 1986.

Subjects

  • Built-up felt roof coverings
  • Coverings and surface finishes
  • Waterproofing/damp proofing
  • Felt/flexible sheets

Publisher History

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.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

Accuris

We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.