Spray foam insulation applied to the underside of wooden floor joists supported by concrete pillars.
RAISED HOME SUBFLOOR INSULATION

Spray foam insulation under raised homes

Closed cell spray foam sprayed under the floor of raised Louisiana homes. It insulates and air seals the floor from below, so hot, humid air under the house stays out of your living space. We look at your house first and tell you whether foam is the right fit.

HOW IT WORKS

What closed cell foam does under the floor

About 2 inches of closed cell foam is our standard under a raised floor, adjusted to each house. It sticks to the subfloor and joists, so it won't sag or fall the way batts can.

Off-white spray foam insulation applied between wooden ceiling joists with protective plastic sheeting nearby.

Air sealing from below

The floor of a raised home sits over open air. Gaps around pipes, wires and floorboards let hot, humid air from under the house into your rooms. Closed cell foam sprayed against the subfloor seals those gaps and insulates in the same step.

Old insulation comes out first

Before any foam goes in, we remove the existing insulation under the house. Old batts that sag, hold moisture or hide gaps come out, so the foam bonds straight to clean subfloor and framing.

OUR UNDER-HOUSE JOBS

Closed cell foam under raised homes

Real photos from our crew under raised homes in South Louisiana: old insulation out, then closed cell foam on the subfloor and joists.

Off-white spray foam insulation covers a ceiling above plastic-wrapped pillars in a construction site.
White spray foam insulation applied between wooden floor joists in a residential crawl space.
Worker in protective gear applies spray foam insulation between wooden ceiling joists in a basement.
Off-white spray foam insulation applied to floor joists and subflooring in a crawl space.
Off-white spray foam insulation covers a ceiling above plastic-wrapped pillars in a construction site.
White spray foam insulation applied between wooden floor joists in a residential crawl space.
Worker in protective gear applies spray foam insulation between wooden ceiling joists in a basement.
Off-white spray foam insulation applied to floor joists and subflooring in a crawl space.
Off-white spray foam insulation covers a ceiling above plastic-wrapped pillars in a construction site.
White spray foam insulation applied between wooden floor joists in a residential crawl space.
Worker in protective gear applies spray foam insulation between wooden ceiling joists in a basement.
Off-white spray foam insulation applied to floor joists and subflooring in a crawl space.
FAQ

Questions about spray foam under raised homes

If you've got a question about your raised home's subfloor, we've got the answer. If we miss something, call and ask.

About 2 inches of closed cell foam is our standard, but every house is different. We look at yours first and recommend what fits.

Get a free estimate for under your house

We'll come look under your raised home, check what's there now, and give you a no-pressure estimate. Serving Metairie, New Orleans, the Northshore and South Louisiana.