Encapsulation and Sealing
Vapor Barrier Seam Sealing and Wall Attachment
A liner is only as good as its seams and edges. We tape every overlap, seal the liner to the walls and wrap piers and penetrations, so air and moisture cannot slip through a gap behind or under it.
- Best forOld, loose or poorly finished liners
- Typical rhythmA few hours to a day
- TeamInstallers who finish liner details
- Pairs well withEncapsulation and wall insulation
What you get
What vapor barrier seam sealing and wall attachment includes
- 1Seams tapedOverlaps are cleaned and sealed with crawl-space-rated tape.
- 2Walls attachedThe liner is fastened and sealed to the foundation walls.
- 3Piers and pipes wrappedCut edges around posts and pipes are sealed tight.
- 4Checked as a systemWe look for gaps from corner to corner.
How it goes
From the first call to a dry, finished space
- 1Find the gapsWe walk the liner and mark loose seams and edges.
- 2Clean the surfacesDust is removed so tape and sealant stick.
- 3Seal and fastenSeams, walls and penetrations are sealed and attached.
- 4Review the resultWe show you the finished edges and seams.
Good fit when
Is vapor barrier seam sealing and wall attachment right for you?
- An existing liner is loose or lifting
- Seams have separated
- You have a liner but still smell dampness
- You are finishing a partial encapsulation
Questions
About vapor barrier seam sealing and wall attachment
Why do seams matter so much?
A small gap lets moist air through, and moisture finds the gap. Taped seams and sealed edges keep the barrier continuous.
Can you fix a liner someone else installed?
Often yes. We check it, repair or replace weak areas and seal it to the walls.
Related services
Often paired with this
Vapor Barrier InstallationA heavy liner that stops ground moisture from rising into the house.See the service 
Crawl Space EncapsulationA sealed, dry, clean crawl space that stops damp air before it reaches your floor.See the service 
Foundation Vent SealingClosed vents that stop humid air from flowing into the crawl space.See the service Where we work
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