4 Common Misconceptions About Spray Foam Insulation

You have probably heard of spray foam insulation and have heard so many things with a lot of information out there. Foam insulation has changed so much over the years, and it’s also important to keep in mind that not all foam is created equal. In this post, we will clear up all the common misconceptions about spray foam insulation.

1. It Can Ruin Roof Shingles

This is a common misconception about spray foam insulation. While it is true that there are applications where spraying foam on a roof will cause the roof shingles to curl and peel, this is not the case with all applications. 

This could happen if you applied the spray foam to a sloped roof with the wrong adhesion or air-sealing practices. Foam sealants do not adhere well to porous surfaces, and it could be straightforward to lose the foam sealant, causing the roof shingles to curl.

Another instance when problems with the roof shingles can occur is if you have a roof with asbestos roofing fibre in it. Spraying foam on top of asbestos fibre can create a toxic concoction, which is no good for you or the environment.

2. It Has a Lingering Smell

Another misconception prevalent in spray foam insulation is that the material has a lingering smell. However, this is not true. The truth is, once the material is applied, it sets within a minute, and you will not really be able to smell it. 

The reason why you may still smell it is because of the solvents in it. The solvents will still be in the air for some time, but everything will dissipate. The same thing goes for your health; the solvents will not be toxic or harmful once the foam insulation is set.

3. It Absorbs Water Like a Sponge

This is a misconception because of the material’s ability to resist water damage. However, this does not mean that it absorbs water like a sponge. The truth is that spray foam insulation does not absorb moisture or water. 

The reason for this is the very nature of spray foam insulation. For a waterproof and air-sealing material to resist water damage, it must be dense enough not to allow water to permeate the seal. The fact that the material forms a complete seal means that there will be no gaps in it; therefore, water will not permeate it.

4. It is Best to Use a Closed Cell on the Attic Roof Deck or Floor

Though many people think closed cell spray foam is better for the attic because it has a higher R-Value, both open and closed cell foams actually work as an air seal. Again, the material’s nature makes it critical to form a complete seal. Therefore, whether it is an open or closed cell, spray foam will resist air, water and air leakage.

Use Spray Foam Insulation

Spray foam insulation has changed how we look at insulation, which is good. It has become more versatile and sensitive to the environment and more feasible. There are many misconceptions about spray foam insulation, and many people think it is a risky material to use. The truth is that it is an excellent material to use, especially when you are looking to insulate your home and save money in the long run.

Have the best Mississauga spray foam at home here at Foamworks. We are a leading insulation contractor that specializes in the quality application of spray foam insulation. Contact us. 

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