Spray Foam Calculator
Enter your information into the spray foam insulation estimate calculator to determine how much foam you need for your project
A. Spraying foam on an open surface and covering over it. (i.e. an open wall cavity and covering with drywall, stage props, critical air seal)
B. Spraying foam on an open surface and leaving it exposed. (i.e. under a floor in a crawlspace, duckwork, rim joists)
C. Filling an enclosed cavity with foam. (i.e. filling an existing block wall cavity, boat pontoon)
D. Spraying a roof foam system. (i.e. patching/repairing foam on the exterior side of a roof)
E. Spraying interior walls / floors for sound reduction. (i.e. home theater room)
B. Spraying foam on an open surface and leaving it exposed. (i.e. under a floor in a crawlspace, duckwork, rim joists)
C. Filling an enclosed cavity with foam. (i.e. filling an existing block wall cavity, boat pontoon)
D. Spraying a roof foam system. (i.e. patching/repairing foam on the exterior side of a roof)
E. Spraying interior walls / floors for sound reduction. (i.e. home theater room)
Results:
Spray Foam Calculator
Recommended Installed Thickness Chart |
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| Application | Type of Foam | Thickness (inches) |
| Metal Buildings | Closed Cell, 1.75 lb. | 0.5 - 2 |
| Walls (Hybrid Installation) | Closed Cell, 1.75 lb. | 0.5 - 2 |
| Walls Non-Hybrid | Closed Cell, 1.75 lb. | 2 - 3.5 |
| Walls (Southern Climates or Sound Proofing) | Open Cell, 0.75 lb. | 3 - 5.5 |
| Ceiling Hybrid Installation | Closed Cell, 1.75 lb. | 0.5 - 1 |
| Roof (Attic Side Open Cell) | Open Cell, 0.75 lb. | 5 - 6 |
| Roof (Top side, flat roof) | Closed Cell, 2.5 lb. | 1 - 2 |
| Floor (Air Seal) | Closed Cell, 1.75 lb. | 0.5 - 1 |
| Floor (Air Seal & Insulate) | Closed Cell, 1.75 lb. | 1 - 3 |
| Crawl Space Walls (Air Seal) | Closed Cell, 1.75 lb. | 0.5 - 1 |
| Crawl Space Walls (Insulate) | Closed Cell, 1.75 lb. | 1 - 2.5 |