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Crawl Space Vapor Barrier Installation
20-mil reinforced liner over bare Piedmont clay floors.
How much does crawl space vapor barrier installation cost in the Triangle?
A crawl space vapor barrier in the Triangle costs $1,800 to $4,200 and covers the dirt floor with a 20-mil reinforced polyethylene liner, seam-taped and mechanically fastened to foundation walls to block ground moisture from evaporating into floor joists.
What the scope includes
- 20-mil reinforced woven liner rated far above the builder-grade 6-mil poly used across Wake County subdivisions
- Seams double-taped and overlapped 12 inches, piers wrapped and sealed individually
- Termite inspection gap maintained per North Carolina building code
- Drainage matting added where Cecil clay perches water beneath the liner
Signs you need this
- Bare dirt or torn plastic under the house
- Musty odor rising into hallways and closets
- Condensation on ductwork in summer
Vapor Barrier by Triangle town
Vapor Barrier in RaleighVapor Barrier in CaryVapor Barrier in ApexVapor Barrier in Holly SpringsVapor Barrier in Wake ForestVapor Barrier in GarnerVapor Barrier in Fuquay-VarinaVapor Barrier in MorrisvilleVapor Barrier in KnightdaleVapor Barrier in DurhamVapor Barrier in Chapel HillVapor Barrier in ClaytonVapor Barrier in WendellVapor Barrier in ZebulonVapor Barrier in RolesvilleVapor Barrier in PittsboroVapor Barrier in HillsboroughVapor Barrier in AngierVapor Barrier in Smithfield
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