Kontract 8 - General purpose cavity drainage membrane for the isolation of damp/wet walls above and below ground

Kontract 8 is a high density polyethylene membrane incorporating 8 mm studs which allow the creation of a continuous drainage pathway for water in basement floors and walls and/or the isolation of damp walls above ground level. The dry surface created allows rapid project completion via dry lining and screeding or timber floor finishes.

• Stud height 8 mm, drainage volume 5.5 litres/m2
• Sheet thickness 500 _m, density 0.5 kg/m2
• Excellent low and high temperature stability
• 120 kN/m2 load bearing capacity
• High durability and water resistance

Kontract 8 is suitable for use in accordance with BS 8102:1990 to provide Type ‘C' drained protection to structures below ground giving a Grade 3 or 4 dry environment suitable for domestic or commercial use. It is essential that Kontract 8 is used in conjunction with a suitable sump and pump facility (unless passive drainage is available on one side of the building) and that this is maintained throughout the lifetime of the installation. To control the risk of condensation it is recommended that all basements should be provided with mechanical ventilation to ensure adequate air circulation in accordance with the guidelines in Approved Document F (Building Regulations 2005).