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Tuesday, June 16, 2015

Spray Foam Insulation

Spray foam insulation is a two-in-one product that insulates and air seals in one step. Foam expands when applied and completely fills a cavity to prevent air leaks and keep energy bills low.

Spray foam insulation reduces heat transfer between spaces in a home. Additionally, it seals air leaks to prevent conditioned inside air from escaping.

Types of Spray Foam Insulation


Spray Foam Insulation - Southland Insulators
Open cell spray foam along roof line
Open cell spray foam acts as an insulator and air barrier. The typical R-value of open cell foam insulation is 3.7 per inch. Other features of open cell foam insulation include vapor permeability, accommodation of seasonal movement, not a food source for mold, dampens sound and great for attic insulation.



Someone spraying spray foam
Closed cell spray foam along roof line
Closed cell spray foam insulation works as an insulator and air barrier. The cells of the bubbles remain intact (closed), which makes the product rigid. The closed cell composition and increased density contribute to a higher R-value than open cell foam. This can contribute to building stability during storms and high winds.


Why does it matter?

Air leaks exist around the building envelope which is the outer layer of the home including exterior walls and rooflines. Air leaks occur through penetration points around areas such as recessed lights, plumbing stacks, electrical wires, attic hatches/doors and chimneys. When these air leaks are sealed, the conditioned air stays in your home. This results in your HVAC system working less, which keeps money in your pocket.

When installing spray foam insulation, the building cavity is insulated and air sealed in one pass, providing a thermal barrier and sealing of penetration points. With one application of spray foam, you are assured that air leaks are completely sealed.

Contact us to learn more about spray foam insulation and how spray foam may be right for your project. 



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