KÖSTER Waterproofing

KÖSTER Protection and Drainage Sheet 3-400

The tree-layer KÖSTER Protection and Drainage Sheet 3-400 is a high quality protection and drainage sheet made of a green HD-PE dimple sheet with a filter fleece made of polypropylene mounted to the front side and a blue gliding foil mounted to the back side. Via the space inside, accruing seepage water or retained seepage water can be drained safely to the drainage pipe. The sheet does not rot, it is resistant to impact and to roots, it retains its shape and is resistant to aggressive water and humic acid as well as against bacteria and fungi; it has no negative effects on drinking water and has a high compressive strength.