Rigid Foam Board Insulation
Rigid foam boards are cut to fit between joists and on foundation walls, sealed at the edges and attached with proper fasteners. They resist moisture, are easy to inspect and make a neat finish. We pick the thickness for your climate and the space.
- MaterialRigid foam board
- FitCut to each space
- SealEdges taped or foamed
- UseWalls, vents, rim joists
What is included
- 1Clean lookSmooth, tidy surfaces.
- 2Moisture resistantDoesn't soak like fiberglass.
- 3Easy to inspectYou can see the whole surface.
- 4FlexibleGood for walls and vent plugs.
From the first call to a dry crawl space
Our partner experts repair and protect crawl spaces in cities across the country. Find yours below and ask for a free estimate.
- 1MeasureWe measure every opening.
- 2CutBoards are cut to size.
- 3FitBoards are fastened and sealed.
- 4ReviewWe check edges and corners.
Is this the right service for you?
- A crawl space with open vents to seal
- Owners who want durable insulation
- A wall that needs a clean finish
- A project that pairs boards with spray foam
Common questions
How thick should the boards be?
It depends on your climate and local code. We recommend and explain.
Do boards need sealing?
Yes. Sealed edges are what make them work.
Is foam board fire-safe?
Products vary, and we choose and explain the right one.
Services that pair with this one
Crawl Space Wall InsulationInsulate the foundation walls instead of the floor and bring the crawl space inside the home's comfort zone.See the service 
Foundation Vent SealingOpen vents let humid air and pests in. Sealing them is a key step in drying the space.See the service 
Spray Foam InsulationClosed-cell spray foam seals and insulates in one step on walls and rim joists.See the service Find your city
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