P8 membrane is manufactured from high-density polyethylene (HDPE). It is impermeable and resistant to the usual chemicals in the building construction. Studs are formed in a regular pattern on the one face of the product. The studs are spaced at approx. 25 mm centres. Standard roll length is 20m.
P8 is used in conjunction with Brick Plugs and Seals, Sealing Tape, Sealing Rope and Cornerstrip Tape. P8 carries a BBA certificate which is required to satisfy the requirements of Third Party Building Warranty providers (NHBC, LABC etc), it can be used within a standalone waterproofing system or as part of a Combined strategy with other forms of waterproofing, depending on site conditions, planned use of the basement or below ground area and risk assessment.