Igloo Insulation LLC
ClaimServices: Attic insulation, Spray foam, Blown-in insulation, +2 more
The 30-Second Verdict
Closed cell is the right choice for Florida's humidity — its vapor barrier prevents moisture infiltration; open cell is cheaper but risks moisture accumulation in Florida's humid climate.
Head-to-Head Breakdown
Open Cell Spray Foam
Pros
- Lower cost ($0.50–$1.00/sq ft vs $1.50–$2.50)
- Better soundproofing
- Fills large cavities well
- R-3.5–3.7 per inch
Cons
- Permeable to moisture
- Can trap moisture in humid FL climate
- NOT a vapor barrier
- Requires vapor barrier added in FL applications
Closed Cell Spray Foam
Pros
- Full vapor barrier (critical in FL)
- R-6 to R-7 per inch
- Adds structural strength to roof deck
- Completely resists moisture infiltration
Cons
- Higher cost ($1.50–$2.50/sq ft)
- Requires trained professionals
- Off-gassing during cure
- Difficult to modify later
Side-by-Side Comparison
| Open Cell Spray Foam | Closed Cell Spray Foam | |
|---|---|---|
| R-Value per Inch | R-3.5–3.7 | R-6 to R-7 |
| Vapor Permeability | Open (moisture passes through) | Closed (vapor barrier) |
| Cost per Sq Ft (2" application) | $0.50–$1.00 | $1.50–$2.50 |
| Moisture Resistance in FL | Poor to moderate | Excellent |
| Structural Reinforcement | None | Yes (stiffens roof deck) |
| Sound Attenuation | Excellent | Good |
| Best FL Application | Interior walls (noise only) | Attic roof deck, crawl spaces |
| Inches Needed for R-38 | ~10.5 inches | ~5.5 inches |
Frequently Asked Questions
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Top-Rated Local Florida Insulation Alternatives
You don't have to pick a national brand. These Florida-based insulation companies have the highest real Google ratings in our directory — often at a fraction of the franchise price.
Insulation Plus of Tampa
ClaimServices: Attic insulation, Spray foam, Blown-in insulation, +2 more
I-Foam & Insulation Inc
ClaimServices: Attic insulation, Spray foam, Blown-in insulation, +2 more