Types of Attic Insulation

Types of Attic Insulation

March 26, 2025

Straight Edge Insulation of Modesto is essential for keeping your home comfortable year-round. It prevents heat from escaping your attic during the winter and keeps cool air from escaping your home in the summer, saving you money on energy bills. It also helps keep moisture out of your home and extends the lifespan of your HVAC system.

There are several different types of insulation available, and the best type for your attic depends on a variety of factors, including your climate and the size of your home. The most popular options include fiberglass batts, loose-fill, and spray foam. Fiberglass batts are the traditional fiberglass panels you may recognize from your walls, while loose-fill and spray foam are liquid solutions that expand to fill spaces in the wall cavities and attic.

Blanket or batting insulation is typically made of plastic, fiberglass, cellulose, or recycled cloth materials. It is a popular DIY option because it is easy to install and costs less than other insulation. It loses its R-value over time, however, and it can be difficult to install correctly, leading to gaps and missed spots. It can also absorb moisture, causing mold and mildew.

The Straight Truth About Attic Insulation: Save Energy, Stay Comfortable

Loose-fill insulation is blown into your attic space using a special machine. It can be made from a variety of materials, including fiberglass, cellulose, mineral wool, and rockwool. This type of insulation is the most cost-effective, but it can be difficult to find and seal all the gaps in your attic, making it less effective than other options. It can also settle over time and reduce its R-value, and it tends to be a favorite snack of raccoons.

Straight Edge Insulation
5248 Sultana Dr. 95301 Atwater CA
(209) 678 4276

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