Professional Insulation Contractors in Brentwood, TN

The main difference between spray foam insulation and more traditional forms of insulation like fiberglass or cellulose is that spray foam insulation is an air barrier and thermal barrier all in one (with closed cell spray foam even offering a moisture barrier as well). This means that spray foam insulation does the job of providing insulation and air sealing with one product, whereas traditional forms of insulation do not provide any barrier to the flow of air. This is important for establishing a continuous and complete thermal/air barrier with the building envelope.

One added bonus of spray foaming along the roof (rather than the floor of an attic) is that the attic becomes climate-controlled storage by making that space more comfortable and freeing up your attic floor that will no longer be covered by traditional insulation. It is also shown to prolong the life of your HVAC air handler (if the air handler is in the attic) by preventing exposure to temperature extremes. Deciding whether to spray the attic floor or the roof decking sometimes comes down to budget as the attic floor can be less square footage than the roofline/decking.

Yes, spray foam is safe. Some people can be sensitive to the fumes that come from the installation process. This process is known as off-gassing, which is why we recommend that occupants vacate the home once the spraying has begun and for a period of 12-24 hours after it ends. This will allow for the foam to fully off-gas, and afterwards the home will be completely safe to live in.

There are a number of factors that determine price, obviously, but for the simplest answer, spray foam is about twice as expensive as traditional fiberglass insulation. Of course, the size of the job, the type of foam being installed, whether or not we need to extract existing insulation, and the fact that some municipalities require the addition of ignition barriers all determine the cost of a spray foam job. What you get with that added cost, however, is a high-quality product that, when installed by our properly trained crew, outperforms traditional insulation because it is an air barrier and insulator in one.

If undisturbed and shielded from direct sunlight, spray foam should last the lifetime of the structure. It does not break down, so it lasts indefinitely.