Vapor Retarders Beneath Concrete Slabs (Concrete / Substrates)
Vapor Retarders Beneath Concrete Slabs (Concrete / Substrates)
Floor Detective® Claims and Conditions Guide
Summary
Vapor retarders beneath concrete slabs are materials installed between the slab and subgrade to reduce moisture vapor transmission from the soil into the concrete. Their function is to limit long-term subgrade moisture contribution that may influence flooring performance. Vapor retarders are part of slab design and construction practice rather than flooring installation. When absent, damaged, or improperly installed, ongoing moisture migration may
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