Sarnafil is a division of Sika Roofing Products. Sarnafil provide single ply roofing membranes to the UK construction Industry. Sarnafil roofing systems provide a comprehensive range of roofing membranes and waterproofing systems for all domestic, commercial and industrial construction. The full range of Sarnafil products can be accessed through the Sarnafil website.

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.

Radmat Building Products are suppliers of high performance waterproofing materials. Our range of products include MedO green roofing that provides variety of green roof solutions. PermaQuik 6100 Monolithic membrane roofing system, a one part, hot applied, seamless rubberised self-healing flat roofing membrane. ParaFlex Cold Applied fast curing polyester resin waterproofing system. TredWay Rooftop Modular Paving System a lightweight, low profile and frost resistant modular paving system for tiles laid on terraces, balconies, rooftops, roof gardens. NanoTherm Aerogel Insulation, insulation at radically reduced thicknesses.

If you supply GREEN ROOF Systems Retro-Fit Retrofit Retro Fit 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.

Grass Concrete are the UK manufacturers and suppliers of Grasscrete concrete reinforcing pavers. Grasscrete concrete paving is the solution for parking on grass and have a load bearing up to 40 tonnes, our alternative grass reinforcement paving is grassblock which is ideal for slope protection. Grassroad is our plastic grass reinforcement and is ideal for driveways or lighter loads. Our grass reinforcement is also a ideal option for permeable paving and SUDS. Grasscrete are also manufacturers of dry fix modular interlocking concrete retaining wall blocks. Our ranges of retaining wall blocks are available for retaining slopes up to 22m high. Binwall is our large dry build, demountable concrete walling system that is ideal for external storage bunker walls.