Wall Insulation for Remodels & Additions in West Palm Beach, FL

Wall insulation for remodels and additions makes the most of the rare times walls are open. In the Palm Beaches that happens during kitchen and bath remodels, additions and enclosed porches, garage conversions, and repairs after storm damage or water intrusion. Once the drywall is off, every cavity can be sealed and insulated with spray foam, which is far more effective than refitting batts.

Frame walls

Open-cell foam fills a 2x4 or 2x6 cavity and seals around outlets, wiring and plumbing. Closed-cell gets more R-value into each inch and adds stiffness. The 2023 Florida energy code lists R-13 for wood-frame walls in Zone 2; a 2x4 cavity of open-cell or an inch and a half or so of closed-cell gets there. Fixr lists new construction spray foam at $2.75 to $6.50 per square foot and existing walls at $3.15 to $7.50.

Concrete block walls

Most Palm Beach County houses have concrete block exterior walls, usually finished inside with furring strips and drywall. The 2023 Florida code lists R-6, or R-4 continuous, for mass walls in Zone 2. When the drywall comes off during a remodel, the shallow furring space can take closed-cell foam, which bonds to the block, seals the gaps and adds R-value without thickening the wall much.

Additions and conversions

Where new framing meets the original house, the joint is a common weak spot: a new roof tied into an old one, a porch enclosed with a floor that sits over a slab, a garage converted to living space. We pay attention to those seams. Enclosed porches and converted garages often need the ceiling and walls insulated, plus the slab edge considered.

Storm and water damage

After a storm or a leak, wet insulation behind drywall has to come out. When walls are opened for repairs, it is the right time to spray foam and seal the cavities rather than putting back batts.

Call (561) 725-9838 with your remodel schedule. Get a free estimate