Builders Film is a Polyethylene Sheet (PE) manufactured using high quality recycled low density polyethylene resins.
Polyethylene does not degrade out of sunlight, staying impermeable to water. It is ideally suited for use as a damp proof membrane or vapour barrier. In this application, the sheets should be placed on the sub base so the bottom surface of the concrete slab is entirely under laid by the builders film. Joints should be overlapped by not less than 200mm and are continuously taped using duct tape. Ensure any penetrations by pipes or services are sealed with duct tape to ensure a continuous vapour barrier.
200Um gauge (0.2mm) for medium impact resistance (IR2) for use in standard soil conditions.