Member
Spray Foam
World Wide
✅
Licensed & Insured
State of Florida
Lic. #CBC1259738
Florida's Most Versatile Insulation Solution
Open cell spray foam expands to fill every gap, crack, and cavity — creating a seamless air barrier that keeps Florida heat out and conditioned air in. Softer, more flexible, and more affordable than closed cell.
Open cell spray foam is made of tiny cells that are intentionally left open after curing — giving it a soft, spongy texture. When sprayed, it expands up to 100 times its original size, filling every crack and gap completely.
In Florida's climate, open cell foam is ideal for attic encapsulations and interior wall applications where you want maximum air sealing at a lower cost than closed cell.
The #1 application for open cell in Florida. Sprayed on the underside of roof decking, it converts your attic to a fully conditioned space — keeping HVAC ducts in conditioned air and eliminating the #1 heat source in most FL homes.
Open cell fills wall cavities completely with no gaps or voids. Dramatically reduces sound transmission between rooms and provides excellent thermal performance. Best installed during new construction or open-wall remodels.
Paired with a vapor barrier or thin layer of closed cell, open cell is a cost-effective solution for large metal building interiors. Excellent for warehouses, workshops, and commercial spaces needing temperature control.
Open cell on commercial roof decks dramatically reduces HVAC load. Large square footage means large savings — many commercial clients report $2,000–$5,000/month in reduced energy costs after encapsulation.
Applied to crawl space walls (not floors), open cell seals air infiltration from below your home. Often combined with a ground vapor barrier for complete moisture and air control.
Open cell + radiant barrier is our most popular combo for Florida attics. The foam seals air completely, while the radiant barrier reflects 97% of heat — best performance-per-dollar in Florida's climate.
How does open cell spray foam stack up against other common insulation options used in Florida?
| Performance Factor | Open Cell Foam ⭐ | Closed Cell Foam | Blown-In Fiberglass | Fiberglass Batt | Rockwool Batt |
|---|---|---|---|---|---|
| R-Value per Inch | R-3.7 | R-6.5 | R-2.5 | R-2.9 | R-3.0 |
| Air Sealing | ✓ Complete | ✓ Complete | ✗ None | ✗ None | ✗ Minimal |
| Expands to Fill Gaps | ✓ 100x expansion | ✓ 30-40x | ✗ No | ✗ No | ✗ No |
| Vapor Barrier | ✗ Permeable | ✓ Yes | ✗ No | ✗ No | ✗ No |
| Sound Dampening | ✓ Excellent | ✓ Good | ✗ Poor | ✗ Poor | ✓ Good |
| Settles / Degrades | ✓ Never | ✓ Never | ✗ Yes | ✗ Yes | ✓ Never |
| Relative Cost | Moderate | Higher | Low | Lowest | Moderate |
| Avg Monthly Savings (FL) | ~$155/mo | ~$185/mo | ~$105/mo | ~$65/mo | ~$80/mo |
| Best For Florida Attics | ✓ Excellent | ✓ Excellent | Fair | ✗ Poor | Fair |
| Lifespan | Lifetime | Lifetime | 15-20 yrs | 10-20 yrs | Lifetime |
| Typical Payback Period | 3-6 years | 3-5 years | 5-8 years | 6-10 years | 6-9 years |
When to choose open cell over closed cell: Open cell is the right choice when you need maximum air sealing at lower cost, when sound control matters, or when you're insulating a large attic or interior walls. Choose closed cell when you also need a vapor barrier, structural rigidity, or the highest possible R-value per inch (like in crawl spaces or metal buildings).
Tell us about your project and we'll give you a straight answer — no pressure, no obligation. Most estimates delivered within 24 hours.