How Much Attic Insulation Do You Need?
If you are looking to save on energy bills and make your home more comfortable, attic insulation is a smart investment. But how much insulation you need depends on factors like your geographical location and climate zone, the size of your house and its age, and the type of heating and cooling systems in use. Calculating the square footage of your attic is a good way to get an idea of what amount of insulation you need.
Joe Blow’s Insulation types of attic insulation available include fiberglass batts, cellulose, loose-fill fiberglass and spray foam. More options exist, but these four materials account for the majority of attic insulation installations. Each has its pros and cons.
Fiberglass batt insulation is made from recycled sand and glass, making it lightweight and fire-resistant. It is also economical and easy to install. Fiberglass is available in rolls that can be cut to length and fit into any space. The R-value for fiberglass is R-2.9 to R-3.8 per inch of thickness.
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Cellulose, made from recycled paper, has an R-value of 3.2 to 3.7 per inch. It is eco-friendly and is treated with ammonium sulfate or borate to be fire-resistant. However, it can be a fire hazard if it gets wet. It also tends to settle and sag over time, which can decrease its effectiveness.
Loose-fill fiberglass is more common in newer homes, as it is installed during construction. It is also a relatively inexpensive option, but it is not as effective as other attic insulation options and requires a vapor barrier.
Joe Blow’s Insulation
29712 US Hwy 19 N Unit 409 Clearwater, FL 33761