Long Key, on the Gulf
Spray Foam Insulation in St. Pete Beach, FL
A barrier island town at sea level, with many seasonal units and heavy storm exposure.
- Free estimates after we see the house
- Written quotes with foam type, thickness and R-value for each area
- Roof leaks, storm damage and moisture checked before anything is covered
A Barrier Island at Sea Level
Spray foam insulation in St. Pete Beach has to stand up to the Gulf. Wikipedia lists the city at sea level, covering the whole length of Long Key, a barrier island. During Hurricane Helene, WUSF reported a resident's parking lot flooded up to the windshields and an SUV flipped near City Hall.
Seasonal and rental units
ACS figures on Point2Homes put about 22.3% of housing units in buildings with 50 or more homes and about 40.5% of units as unoccupied, reflecting the many seasonal homes and rentals. A home that sits closed in summer benefits from a sealed, well-insulated envelope that keeps heat and humidity down while it is empty.
Raised homes and ground-level enclosures
Newer and rebuilt homes on the island are often raised. Floors over open or enclosed ground-level space face wind and moisture, and closed-cell foam under the floor holds up far better than batts. Areas below flood elevation should use flood-resistant materials.
Attics and roof decks
Attics with ducts are common in beach homes as in the city. Roof deck foam or a sealed ceiling with deeper insulation keeps the living space cooler. After Helene and Milton, many beach roofs were damaged, so we check for wet insulation first.
Code baseline
Pinellas County is in Climate Zone 2 under the 2023 Florida energy code, which lists R-38 for ceilings and R-13 for frame walls. For an uninsulated floor over open space, the Department of Energy suggests R-13, which closed-cell foam reaches in a few inches. Salt air reaches framing hardware here, so we look for corrosion before covering anything.
Tourism town
The Don CeSar opened on the Gulf in 1928, and Corey Avenue anchors the downtown restaurant and shop district. Older cottages near the historic core sit alongside condos and newer raised homes. Get a free estimate
What to Know in St. Pete Beach
- Sea-level island. St. Pete Beach occupies the entire length of Long Key, a barrier island listed at sea level (Wikipedia).
- Condos and seasonal units. 22.3% of units are in 50+ unit buildings; 40.5% of units are unoccupied (ACS via Point2Homes).
- Helene flooding. WUSF reported a parking lot flooded to the windshields and an SUV flipped near City Hall during Helene.
- Tourism economy. The Don CeSar opened on the Gulf in 1928; Corey Avenue anchors downtown (Wikipedia).

St. Pete Beach Questions
What insulation goes under a raised St. Pete Beach home?
Closed-cell spray foam against the subfloor, which resists water and stays in place.
Can you work on a rental between guests?
Yes. We schedule around bookings and keep the work area contained.
Is the attic worth doing in a beach house?
Yes, especially if ducts are in the attic. It keeps the house cooler and drier when empty.
Free Estimates in St. Pete Beach, FL
Free estimates for St. Pete Beach homes and rentals.
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