Made from high density polyethylene (HDPE), this hard wearing, flexible membrane is designed to direct water away from the surface of the structure towards the appropriate drainage system. It is very tough but lightweight and easy to handle, making it very adaptable and suitab...Read More
Made from high density polyethylene (HDPE), this hard wearing, flexible membrane is designed to direct water away from the surface of the structure towards the appropriate drainage system. It is very tough but lightweight and easy to handle, making it very adaptable and suitable for a large number of applications. It is also completely safe and contaminant free, and can be used safely with water courses.
It is ideal for vertical surfaces and protects the waterproof membrane from abrasion and puncture damage caused by backfilling. Its cupped structure creates a permanent air gap between the wall and the backfill which helps to reduce pressure points and helps in the ventilation of the building and problems of damp. Gravity will encourage the water to flow down the surface and into the sump or drain constructed beneath. It is also an effective damp-proof layer on horizontal surfaces. It is fungus and rotproof and completely safe with drinking water.
Protecto-drain 8 is a single membrane fixed to the wall with its cups facing towards the backfill. It spreads the weight of the soil and prevents point loading onto the structure. The 8mm high cups create an air gap between the structure and the earth backfill, helping to ventilate it effectively. Providing that the membrane is properly sealed at the edges, Protecto-drain 8 can create a viable waterproofing membrane in itself. It is best suited, however, as an extra protection and ventilation layer, covering an existing waterproofing seal.
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