Basement protection Single-ply dimpled sheets Dimple sheets with 8 mm dimples are the cost-effective solution for foundation wall protection. The dimpled sheets are used to protect perimeter insulation and on sufficiently pressure-stable waterproofing if no drainage is desired. PM 8N PM 8N dimpled sheet with 8 mm high dimples is the cost-effective solution as a subbase and an inexpensive alternative to lean concrete. PM STANDARD GS PM STANDARD GS dimpled sheet with 8 mm dimples is the high-quality solution for a subbase, and also offers protection against rising soil moisture. PM XS PM XS is an effective protection and drainage system for horizontal indoor applications. PM XS consists of a high-quality, very flat HDPE dimpled sheet. PM 20 PM 20 is a high-performance dimpled sheet with 20 mm-high dimples, and the ideal solution for draining rising, seeping and backwater in tunnel constructions. Search Basement protectionDrainage sheets in two layers Dimpled and drainage sheetsBasement protectionSingle-ply dimpled sheets