Why is Air Sealing My Home Important?

Q: Why is air sealing my home so important?

A: Great question. If you have been reading up about home insulation you have most likely been bombarded with a lot of talk about R-Value.

It’s easy to see why R-Value is important- it is a measurable rating to show temperature transfer through insulation. But what about air leakage?

Air leakage, simply put, is expensive.

The US Department of Energy says it perfectly:

“Reducing the amount of air that leaks in and out of your home is a cost-effective way to cut heating and cooling costs, improve durability, increase comfort, and create a healthier indoor environment.”

Sealing air leaks can reduce your energy bills by up to 40%. And it’s also important to know that insulation’s real life R-Value decreases if it cannot stop air leakage. Tests for determining R-Value are performed in an air-tight, moisture-free lab environment. Spray foam resists moisture and air flow, so its R-Value is the same in your home as it is in the lab. Fiberglass, however, is porous and allows air through, so as soon as you open the package it begins losing R-Value.

Spray foam is the only form of insulation that is considered to be an air barrier per the ASTM E283 test for air permeance.

So, when insulating your home it’s important to look not only at R-Value, but also at whether the insulation can stop air leakage. Foam It Green’s spray foam insulation has double the R-Value of fiberglass and cellulose, is an air barrier, resists moisture penetration, and prevents mold growth.

So, whether you use Foam It Green alone or in combination with another insulation, you can be confident that you are getting fantastic results.

Curious about how to use spray foam on your next project? Give us a call!

Our Project Specialists are here to help at 1-800-516-0949.




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