Attic insulation find that high energy bills are a result of air leaks in the home. Spray foam insulation creates an effective air barrier that prevents heat from leaking out in the winter and from coming in during summer, saving you money on your energy costs.
Spray foam insulation can be installed in new construction, rim joists, crawl spaces, attics and even in existing homes, pole barns and concrete block walls. When professionally installed (which only trained insulation crews can do) it lasts for as long as your building does and will not compress or sag.
Sealing the Gaps: How Spray Foam Insulation Revolutionizes Energy Efficiency”
If you are thinking of having spray foam insulated in your home or building, there are a few things to consider before you proceed. One is that spray foam can be very expensive, but the savings you will make on your energy bill will offset the cost in a few years. Another issue is that the blowing agent used in spray foam has a very high global warming potential, or GWP. A GWP measures how much energy 1 ton of emissions will absorb over 100 years, and hydrofluorocarbons have a GWP of 3,400 times that of carbon dioxide.
You can lower the costs of spray foam by having it put in during construction, and you can also cut labor costs by insulating your own small areas of your home with fiberglass batts. However, the GWP of the blowing agents used in spray foam must be considered when you are choosing this type of insulation for your project.
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