- Membrane Manufacturers
- Manufacturers and wholly owned subsidiaries of liquid applied waterproofing in the UK. LRWA manufacturers account for more than 90% of the UK Liquid Roofing market.
- Manufacturers of ancillary components in the roofing system such as thermal and acoustic insulation, vapour control layers, decking, lightning protection, drainage, plant and safety equipment.
- Roofing contractors licensed or approved to receive and install the products of one or more of the manufacturer members.