Delta membranes specialise in the supply of waterproofing systems for basement construction & cellar construction. Products include: Basement tanking membranes, cellar waterproofing membranes, structural waterproofing systems, cavity wall DPC, cellar waterproofing, cavity drainage membranes, waterproofing systems. Other products include basement drainage systems with sumps and pumps.

FLAG 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.

Alumasc Exterior Building Products are a major UK supplier of premium construction products and brands. Alumasc Rainwater Systems are a leading manufacturer of BBA certified architectural aluminium rainwater goods. A complete range of aluminium gutters, downpipes and integrated fascia soffits. Alumasc Rainwater also supply cast iron rainwater pipes and gutters for historic and restoration sites, with bespoke designs available to match or replace existing installations. Alumasc are suppliers of Harmer drainage systems that include roof outlets and below ground drainage. For internal drainage, Harmer provide cast iron soil and waste systems, floor drains, shower drains and wetrooms. Alumasc also provide world class BBA certified waterproofing and green roofing systems. Included in the range are Derbigum flat roofing membranes, Hydrotech structural waterproofing and ZinCo green roofs. Also BBA Certified is Alumasc's specialist thermally efficient, insulated render systems which utilise a wide range of silicone, mineral and polymer-modified decorative render finishes.

If you supply GREEN ROOF Protective Moisture Mats . then contact us today! There has never been a better time to promote your company and products with BPi. Get in touch NOW and your company will be available to our millions of users. Send us your details or simply call us.

Hertalan UK are the UK suppliers of the Hertalan EPDM single ply roofing systems. EPDM membranes are mainly used for roofing and cladding installations but can also be used for tanking, water reservoirs, canal and pond linings.