5 Biggest Myths About Spray Foam

We have over 50 years of experience installing spray foam in North Idaho and Spokane. In that time we have fielded a lot of questions about spray foam and realized that there can be a lot of misconceptions about this revolutionary material. Here we will go over some of the most common fallacies that we hear about spray foam from the public, an attempt to dispel them

Myth #1: Spray foam insulation is too expensive

This is simply not true. It is true that spray foam costs more than other forms of insulation, but that’s because it works so much better than other forms of insulation. Sure, you will have to put up more money for the initial investment, but your energy savings over a lifetime will equate to far more than the cost of the installation. Don’t forget about the increase in comfort in your home, and the positive impact you can have on the environment by reducing your energy expenditures.

Myth #2: Open cell spray foam attracts moisture

Polyurethane spray foam is a hydrophobic material, meaning that it repels moisture. It is not permeable to water whatsoever, meaning that water is unable to pass through it. In fact, spray foam can be an excellent way to protect different areas of your home against damage that can be caused as a result of the infiltration of moisture and water.

Myth #3: Spray foam will not allow a home to breathe. 

This one always makes us chuckle. Your house is not a living organism, it does not need to breathe. Spray foam insulation will seal your home airtight, but that’s a good thing. If you live in a home with a lot of air leaks you may be experiencing chilly drafts and high utility bills. 

It’s true that some houses that are sealed very tightly do have issues, but this is not due to the insulation. These problems arise due to inadequate ventilation. Spray foam with a good ventilation system will make for a home that is very energy efficient and does not have any issues related to moisture accumulation such as mold.

Myth #4: Spray foam is bad for my family’s health

This is probably one of the most common myths surrounding spray foam. Since it is a chemical spray, people sometimes worry about potential adverse health effects. Once spray foam insulation has been installed and allowed to set,  it is completely safe. After the curing process spray foam releases no dangerous fumes. 

Myth #5: It is a fire hazard

We have seen some myths that spray foam is super flammable, and even that it has the ability to spontaneously combust if it gets too hot! This is simply not true. Most spray foams are actually mixed with fire retardant chemicals so that they won’t promote the spread of fire. Spray foam can also ask to stop the spread of fire because it is so good at creating an air seal. Since fire needs a source of oxygen, spray foam can actually help to snuff a fire out.

There are countless myths and misconceptions among consumers today. With so much information available on the internet these days sometimes it’s hard to know what to believe. If you have any questions about the safety or efficacy of spray foam, be sure to reach out to a professional here at Evergreen Insulation.