Labels:hakham | sky | web site | window OCR: Prev Next Water Management of the Building Envelope Under Slab Vapor Barriers Vapor Barrier, RadontMethane Barrier, Under Slab Ground Membrane How do I specify it? Thick kness: 15 mil Roll Sizes: 13 feet 164 feet Perm Rating 0.01 grains/hour/square foot to ASTM E96 Tensile Strength: .628 psi to ASTM D882 Elongation Break: 76.9 % to ASTM D882 Crach king or De lamination ASTM E154 Section 12 20 deg Passed Puncture Resistance 124 Ib/ft to ASTM E 54 Section 1 Meth ane Permeability ASTM D1 434-82 Procedure M Passed. 116 RadoniMethane specif Cracking