Flat Roof Installation & Repairs | BWP Contracts

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PVC Single-ply Roofing membranes

Since its introduction over 45 years ago, single-ply roofing membranes have been growing in popularity as the alternative to bituminous torch on felt. The membranes are manufactured using a synthetic polymer (PVC) and are strengthened with a glass fibre/ polyester mesh. The membrane can be laid directly over PIR insulation (eliminating the need for a secondary deck) or onto a fleece separation layer. Generally held in place with mechanical fasteners (thermally broken tube fixings to eliminate cold bridging) and hot air welded at the seams to give a continuous waterproof seal.

BWP Contracts are trained licensed installers of both:

  1. Alkorplan single-ply roofing membranes (20 year warranty)
  2. Armourplan single ply roofing membranes (15 year warranty)

Key Benefits:

  • Simulate zinc or copper roofs with the addition of standing seam detail
  • Superior thermoplastic single-ply roofing membranes
  • Light smooth surfaces which do not retain dirt and promote good solar reflectivity, low maintenance.
  • Pollution resistant
  • On average five times lighter that traditional multilayer bituminous system.
  • Broad colour range and adaptable to most roof substrates
  • Durable- Life expectancy assessed by BBA (British Board of Agreement) as in excess of 35 years.
  • Supplied with15 or 20 year warranties  depending on membrane.
  • Seams are hot air welded thus eliminating the risk associated with naked flames and hot bitumen.
  • Self-extinguishing (unlike bituminous felt systems)
  • Only approved contractors are allowed to purchase and install Alkorplan or the Armourplan membranes.  All operatives must pass an installation course and are continually trained and assessed.