List of featured suppliers of ROOF Weathering Collars on Building Products Index

SOPREMA UK supply an extensive range of waterproofing solutions. Our ranges include Sopralene an elastomeric torch-on roofing membrane. Flagon PVC and TPO membranes. Duoflex structural waterproofing, Alsan liquid applied waterproofing. Optigreen green roofing system and Metadeck our metal roofing decks. Flag-Soprema's worldwide success is evident from the millions of square metres of Flag membranes installed every year.

Klober are one of Europe's leading manufacturers and suppliers of pitched roofing products. The range includes vapour permeable and non vapour-permeable membranes for pitched roof and timber-framed buildings as well as a comprehensive range of universal ventilation, dry-fix roofing ridges. Klober also supply solar panels supports and sealing collars and roof outlets.

OSMA is the UK’s leading name in plastics systems, your single source for all types of gravity drainage, sewer installation and pressure pipe systems in any private or public development.

POLYPIPE TERRAIN have been pioneering the development of plastic drainage systems for over 50 years. We are the drainage experts and set the benchmark for quality, installation, flexibility and offer unrivalled product innovation. Our extensive range of engineered above ground drainage pipe products have been designed for commercial buildings and our Terrain Fabrication Service provides bespoke engineered drainage solutions as complete systems - ready to install.

Marley Plumbing and Drainage supply and manufacture sustainable drainage systems. Our main product ranges include rainwater systems, underground drainage systems, soil and waste systems, sustainable drainage and HDPE drainage products.