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One of the best high-performance insulation materials on the market today is spray foam insulation. Made of polyurethane, and available as an ‘open’ or ‘closed’ cell foam, spray foam insulation is well-suited to retrofit situations as well as new construction.
Open cell spray foam has a slightly higher R-value as fibrous insulation, but it is better at blocking air movement than fiberglass.
Closed cell spray foam has a much higher R-value, and can act as both an air barrier and a vapour barrier.
Both types must be installed by trained professionals.
Both types of polyurethane foam insulation are applied using a spray gun that combines two separate components that expand into a foam that completely fills the wall, floor or ceiling cavity that needs to be insulated.
Spray foams are great for getting into tight and oddly-shaped spaces. Spray foam products can provide higher insulation values in places that really need them, like the eaves in older homes, where other materials with lower R-values per inch can’t provide enough thermal protection.
Spray foams also help to reduce outside noise levels, creating a quieter, more comfortable indoor environment. In addition, the materials they are made of do not appeal to most insects and animals, meaning your home won’t inadvertently turn into a home for unwanted rodents and pests.
Closed cell foam is more expensive than open cell foam because it is denser and requires more material. However, it can be the best investment in your house since it acts as an air barrier and a vapor barrier when installed properly.
At AAA Northgate, we know there is never one solution to a cost-effective energy upgrade that leads to lower bills. That’s why we also install dense-pack and blown cellulose insulation.
In some cases, the best insulation upgrade in an attic is a combination of closed cell foam and cellulose. The expanding foam is applied in the proper thickness to provide a complete air barrier in the attic, and the cellulose ‘tops up’ the insulation level to the required R-value.
The best way to determine how to best spend your money is to get a whole home energy audit that analyses the performance of your house as a system. AAA Northgate provides this service for free, so that you can make informed decisions about your air sealing and insulation projects.
AAA Northgate and Ameren Illinois are working together to save you energy and money. Learn more about a home energy audit, as well as rebates and incentives through Ameren Illinois.
We proudly serve the Peoria and Central Illinois areas.