Insulation is an important investment for your home and spray foam insulation offers many benefits, including improved comfort, better energy efficiency and a healthier indoor environment. Spray foam prevents the escape of moisture and pollutants, which can have a negative effect on indoor air quality. Moisture entrapment in the unseen areas of the building envelope can lead to mold development and costly remediation expenses.

Choosing Closed-Cell vs. Open-Cell Spray Foam Insulation – Which is Right for You

Spray foam is a weatherization product that seals the gaps and leaks in walls, attics, basements, rim joists, overhangs, knee walls and bonus rooms to create a more comfortable and energy-efficient home. By reducing the flow of air through these spaces, spray foam also lowers the heating and cooling costs for your home by decreasing the workload on your HVAC system.

Foam can be used before applying blown-in cellulose and helps to fill the small nooks and crannies that allow air to pass through. The open cell spray foam will expand to fill these gaps and create a tighter seal and the closed cell foam will harden into a dense coating. The air bubbles in the foam reduce sound transmission, creating a quieter home environment.

To determine how much spray foam you will need, begin by accurately measuring the length and width of the surfaces that will be insulated and multiplying those measurements to find the square footage. This will give you the total area that needs to be insulated and you can then calculate how much foam you need by using the formula (Board Feet = Area x Desired Thickness). This formula also accounts for the amount of raw chemical components (A-side and B-side) required to create your desired type of spray foam, with closed cell producing less finished foam than open cell.

Foam Expert Group
130 Industry St #39 North York ON  M6M 5G3
647-671-3950