Sealing Materials

Polyethylene Membranes (HDPE/LDPE)

Providers & Manufacturers

Flexible sheet barriers for crawlspace and under-slab applications

Popular Brands

VisqueenRadonBlok

Technical Specifications

•0.4-1.2mm thickness
•Requires calculation per building codes
•Vulnerable to puncturing
•Requires protective layers
•Common in UK (R400, Ultimate 400/600)

Verified Providers

1 provider offering polyethylene membranes (hdpe/ldpe)

Visqueen Building Products

UK manufacturer of polyethylene membranes including specialized radon barriers.

GB (Nationwide), IE (Nationwide)

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