Systems
Two ways to stop moisture at the source.
Both start with a ground vapor barrier sealed at the seams, the piers and the penetrations. What changes is how far up the walls and piers it goes.

The two systems
12 to 18 in
Partial: up the wall
5 in
Full: below the joists
What is included
The sheet is the same. The coverage and the detailing are not.
Both start with the floor: the ground cleared, the sheet laid to full coverage, seams lapped and sealed, every pier wrapped and every penetration collared. Partial encapsulation stops 12 to 18 inches up the walls; full encapsulation goes on to 5 inches below the joists.
Fig. 1 12 to 18 in up the wall
Partial encapsulation
The floor and the lower walls.
- The whole floor lined, seams lapped and sealed
- Walls covered 12 to 18 inches up, mechanically fastened
- Every pier wrapped and every penetration collared
- Before-and-after photographs
12 mil. Reinforced polyethylene.
Fig. 2 To 5 in below the joists
Full encapsulation
The floor, the walls and the piers, up to the framing.
- The whole floor lined, seams lapped and sealed
- Walls lined to 5 inches below the floor joists
- Piers wrapped to the same height
- Vents covered where full encapsulation needs it
- Before-and-after photographs
Heavy-duty reinforced liner.
Which one your crawlspace needs is decided at the inspection.
See how the price is setFree inspection
Book your free inspection.
About an hour under the house, then one fixed price. Texts are answered right away.