Vapor retarders are sheet materials used below slab-on-ground floors to limit the amount of moisture that migrates into and upward through concrete slabs. If unchecked, moisture can cause floor ...

low-permeance vapor barrier placed directly beneath the slab. If the barrier below the slab is absent, the results of any type of moisture test cannot be relied upon, as the moisture content of ...

Unlike traditional basements, crawl spaces are often only a few feet tall, built above grade, and many are unfinished ... If ...