🔨 Construction & RemodelingSimpleAlso: vapor barrier, vapor retarder, moisture membrane
Moisture Barrier
Definition
A moisture barrier is a layer of material — typically 6-mil polyethylene plastic sheeting — installed to block ground moisture and water vapor from migrating into floors, walls, or crawl spaces.
Common Questions
Real-World Example
You'd see this when CRM Services is installing LVP flooring in a slab-on-grade home in Salmon Creek, WA.
Why It Matters
Highly relevant in the Pacific Northwest climate for any ground-level flooring project.
Related Services
Related Terms
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Subfloor
🔨The subfloor is the structural layer of flooring nailed or screwed directly to the floor joists. In ...
Crawl Space Encapsulation
🔨Crawl space encapsulation is the process of sealing a home's crawl space with a heavy-duty vapor bar...
Vapor Barrier
A vapor barrier is a sheet material — typically reinforced polyethylene at 6-mil to 20-mil thickness...