Spray Foam Insulation in Siesta Key, FL

Spray Foam Insulation on Siesta Key often follows storm repairs. Hurricane Milton made landfall near Siesta Key on October 9, 2024, as a Category 3 hurricane. Roof damage let rain into attics, and many homes and units have needed insulation removed and replaced. The island sits between Roberts Bay and the Gulf of Mexico at about 7 feet of elevation.

Mostly multi-unit and seasonal

The 2020 census found 7,792 housing units on the key, with 63.9% vacant on census day. ACS figures via Point2Homes show about 60% of units in multi-unit buildings and a median year built of 1976. For condos, insulation work usually happens with the association. For single-family beach homes and rentals, attic and roof-deck work is common.

Choosing materials

With salt air, humidity and storm risk, materials that resist moisture matter. Closed-cell foam handles water better than other insulation in floors and lower walls. In attics, open-cell foam on the roof deck or a sealed ceiling with blown-in are both options.

Away for the season

Many owners are away for months. A sealed attic helps the AC keep humidity down while the house is closed. We arrange access and send photos.

Costs to expect

HomeAdvisor lists insulation removal at $1 to $2 per square foot nationally, and about $1,852 on average for removal plus replacement. Roof-deck spray foam for a typical attic runs $1,500 to $9,000 in HomeGuide's guide. Storm-damaged attics often need removal first.

Rental schedules

For vacation rentals, we schedule work between bookings and account for the cure time after spraying.

Salt air

Salt air is hard on metal roofs and fasteners. When we look at an attic, we note any corrosion or leaks so you can address them before new insulation goes in.

Same code as the mainland

Sarasota County is in Florida's Climate Zone 2, where the 2023 code calls for R-38 in ceilings.

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