Cavity Drainage Membrane (Type C drained protection) manage water that penetrates the external shell of a structure, by collecting it in a cavity formed between the external wall and an internal lining/wall. There is permanent reliance on this cavity to collect groundwater seepage and direct it to a suitable discharge point.
SURFASDRAIN 8
A high density polyethylene (HDPE) 8mm dimpled membrane, which may be used as part of a Type C Drainage Protection according to BS 8102:2009.
SURFASDRAIN 20
A high density polyethylene (HDPE) 20mm dimpled membrane, which may be used as part of a Type C Drainage Protection according to BS 8102:2009.
