Labels:box | dialog box | window OCR: Prev Next Water Management of the Building Envelope Under Slab Vapor Barriers Vapor Barrier, Radon/Methane Barrier, Under Slab Ground Membrane How is it made? S1at Composition by Laver Top to Bottom: One 1 laver ot low- density virgin polyethylene (LDPE) to ASTM D4551, One 1 layer of polvester multi- filament mesh One 1 layer of low- -density virgin polyethylene (LDPE) to ASTM D4551. Gravel Radon Barrier 113 RadoniMethane Cancreta polyethy lene 4551
