// CODE SNIPPET
1202.7.3.2.4 Soil-Gas Retarder Membrane
Go To Full Code Chapter
A soilgas retarder membrane, consisting of at least one layer of virgin polyethylene with a thickness of at least 6 mil (0.15 mm) or equivalent flexible sheet material, shall be either placed directly under all concrete slabs so that the slab is in direct contact with the membrane, or on top of the aggregate with 2 inches (51 mm) minimum of fine sand or pea gravel installed between the concrete slab and membrane. The flexible sheet shall extend to the foundation wall or to the outside edge of the monolithic slab. Seams shall overlap at least 12 inches (305 mm). The membrane shall also be fitted tightly to all pipes, wires, and other penetrations of the membrane and sealed with an approved sealant or tape. All punctures or tears shall be repaired with the same or approved material and similarly lapped and sealed.
Upcodes Diagrams
Related Code Sections
1202.7.3.2.4 Interior Environment, Soil-Gas Retarder Membrane
A soilgas retarder membrane, consisting of at least one layer of virgin polyethylene with a thickness of at least 6 mil (0.15 mm) or equivalent ...
1202.7.3.2.4 Interior Environment, Soil-Gas Retarder Membrane
A soil-gas retarder membrane, consisting of at least one layer of virgin polyethylene with a thickness of at least 6 mil, or equivalent flexible ...
1203.6.3.2.4 Interior Environment, Soil-Gas Retarder Membrane
A soil-gas
retarder membrane, consisting of at least one layer of
virgin polyethylene with a thickness of at least 6 mil, or
equivalent flexible ...
1203.6.2.3 Interior Environment, Crawlspace Plenum Systems
In crawlspace
plenum systems used for providing supply air for an
HVAC system, aggregate, a permanently sealed soil gas
retarder membrane and a radon ...
Section AF102 Radon Control Methods, Definitions
drawing air from beneath the soil-gas-retarder membrane. SUBSLAB DEPRESSURIZATION SYSTEM (Active). A system designed to achieve lower subslab air ...