Fosroc Proofex Sheetdrain 80

Technical Information

Proofex Sheetdrain 80 is a geocomposite drainage sheet comprising a 8mm thick HDPE cuspated core bonded to a non-woven polypropylene geotextile, recommended for most building and civil engineering drainage applications.

Where To Use

Proofex Sheetdrain 80 is an HDPE cuspated drainage sheet. It is located against buried walls and roofs of structures for below ground depths of up to 6m to provide a filtered, drainage void that will route percolating water away from the structure in conjunction with an effective drainage system. Proofex Sheetdrain 80 is typically used in conjunction with Type A (Barrier) and Type B (Integral) waterproofing systems as part of a complete solution in Low and Variable water table conditions as defined and recommended in BS8102:2009. Proofex Sheetdrain 80 can also be used as protection layer for Type A membranes from physical damage during backfill operations. It is an effective alternative to traditional stone ‘French’ drains providing improved drainage performance. Where directly cast concrete sub-structure walls need to be drained, Proofex Sheetdrain 80 may be used as a lost shuttering liner. Proofex Sheetdrain 80 can contribute to an effective waterproofing solution when constructing below ground structures such as basements, retaining walls, service ducts, lift pits and subways generally in conjunction with Type A (Barrier) and / or Type B (Integral) waterproofing systems also available from Fosroc. Proofex Sheetdrain 80 provides filtered drainage and enhanced protection when used with Proofex waterproof membranes on reservoirs, podium decks and elevated slabs. Proofex Sheetdrain 80 can be utilised in conjunction with the required ancillaries to provide a gas pressure relief pathway as part of a BS8485 compliant ground gas protection solution. 

Advantages

•  Cost effective - no need for up to 500mm thick stone drainage layer behind retaining walls
•  Easy site application
•  Reduced environmental impact - no need for vehicular removal and transportation of spoil off site and subsequent replacing with expensive stone drainage layer
•  High flow rate (water and gas)
•  High impact resistant, HDPE cuspated core with a compressive strength of up to 200 kN/m² provides drainage void around structures under backfill and long term loadings
•  Cost effective alternative to ‘French Drains’