Function: noun
Date: circa 1941
: a layer of material (as roofing paper or polyethylene film) used to retard or prevent the absorption of moisture into a construction (as a wall or floor)
Function: noun
Date: circa 1941
: a layer of material (as roofing paper or polyethylene film) used to retard or prevent the absorption of moisture into a construction (as a wall or floor)
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012