Spray Foam Insulation Garage Cost: Cooling Your Workspace

In Louisiana, an uninsulated garage is basically a brick oven. If the sun is beating down on your garage doors or roof, temperatures inside can easily exceed 110 degrees, making it impossible to work, exercise, or store temperature-sensitive items.

Pricing Out a Garage Insulation Job

To properly seal a garage, we typically spray the exterior walls and the ceiling deck. Because garage walls are usually built with 2x4s, we apply open or closed-cell foam to fill the cavity before drywall goes up.

• Open Cell (Walls): Roughly $0.50 - $1.25 per board foot. Great for soundproofing the garage from the main house.
• Closed Cell (Ceiling/Roof Deck): Roughly $1.50 - $2.50 per board foot. Required if your garage roof deck is exposed and you want a total moisture and heat barrier.

For a standard two-car garage in Louisiana, completely encapsulating the walls and ceiling typically ranges from $2,500 to $4,500.