4-320 / DRAINAGE MEMBRANE

Advantages:

• The drainage membrane is an effective protection and drainage system for horizontal indoor applications
• The membrane consists of a high-quality HDPE dimpled sheet
• This flat dimpled sheet has been specially developed for flooring applications to protect against rising damp and contamination. Moreover, it can also be used as a substitute for lean concrete sub-bases
• The special low dimple shape (approx. 4 mm) minimises changes in floor level, while still providing a sufficient air gap to achieve vapour pressure compensation
• The drainage membrane is an affordable alternative to lean concrete sub-bases. Because the dimples securely separate the foundation wall from the ground, the dimpled sheet takes on the function of lean concrete. This makes it possible to work in any weather; the waiting time typical for the hardening of lean concrete is eliminated