The Liquid Roofing and Waterproofing Association (LRWA) has appointed Mark Harris as its technical chair. With more than 40 years’ experience of the roofing industry, Mark has honed his skills through a variety of roles gaining technical knowledge of liquid-applied membranes, green roofing, blue roofing, reinforced bitumen membranes, and single ply. Throughout his career, Mark…
LRWA The importance of reinforcement Cold-applied liquid waterproofing, specified predominantly within refurbishment projects, is often overlayed onto existing roofing systems. Reinforcement enhances the tensile strength of the liquid waterproofing, consequently reducing material elasticity. You are here: Home Page The importance of reinforcement Navigating the vast array of liquid waterproofing systems available can often prove challenging,…
Mark has worked in the flat roofing industry for over 35 years.
The Liquid Roofing and Waterproofing Association (LRWA) is joining forces with the Rooflight Association to provide specialist knowledge and support across both memberships. Formerly named the National Association of Rooflight Manufacturers (NARM), the organisation rebranded in 2023 and extended its membership to include rooflight installers, specifiers, distributors and other rooflight-related businesses and individuals. The collaboration…
LRWA EVENTS LRWA board meeting 28/04/2026 TBC You are here: Home Event LRWA board meetings happen quarterly to give the directors of the association a full overview of all association activity. It forms a vital part of our governance. Key agenda items include: Financial overview – progress against plan and operational update Technical Overview –…
LRWA technical meetings happen three times a year to keep members and specifically their technical personnel up to date on key issues. Key forums to be discussed: Updates from British Standards Committees for fire and flat roofing Updates from Construction Products Association technical committee Updates from National Federation of Roofing Contractors joint flat roofing committee…
LRWA technical meetings happen three times a year to keep members and specifically their technical personnel up to date on key issues. Key forums to be discussed: Updates from British Standards Committees for fire and flat roofing Updates from Construction Products Association technical committee Updates from National Federation of Roofing Contractors joint flat roofing committee…
LRWA Fire safety Approved Document B (ADB) is the government document that gives guidance on fire precautions relating to the wider Building Regulations in England. Collectively these must be adhered to in order to keep people and premises safe. You are here: Home Page Approved Document B (ADB) In August 2019, a new edition of…
LRWA EVENTS LRWA members meeting followed by Christmas drinks 8/12/2026 Roofing House, 31 Worship Street, London EC2A 2DY You are here: Home Event LRWA members meetings happen three times a year to give members an overview of all association activity and how to get involved. Key agenda items include: CEO Update – progress against plan…
LRWA EVENTS LRWA board meeting 03/02/2026 TBC You are here: Home Event LRWA board meetings happen quarterly to give the directors of the association a full overview of all association activity. It forms a vital part of our governance. Key agenda items include: Financial overview – progress against plan and operational update Technical Overview –…