Fiberglass Insulation, Explained

Made from melted glass spun or blown into fibers, fiberglass is one of the most widely used materials for insulation. First introduced in the 1930s, fiberglass has evolved into an eco-friendly product over the years. Today, the U.S. Department of Energy reports that up to 60% percent of glass used to manufacture fiberglass comes from recycled glass.

In addition to the batts and rolls traditionally used to insulate attics, fiberglass insulation is available for loose-fill applications. It’s also available as rigid boards and as insulation for HVAC ductwork. Quick and easy to install, fiberglass insulation helps keep your home cool in the summer and warm all winter.

Fiberglass Blanket Attic Installations

A popular choice for attics, fiberglass batts or rolls are available in pre-cut sizes designed to fit easily between rafters, joists, and studs. As a naturally fire-retardant material, fiberglass poses virtually no fire hazard. When installed correctly, blanket applications provide an effective thermal barrier. It prevents heat from escaping outdoors during the winter and entering your home in the summer.

Professional installation is the key to getting the most benefits from using fiberglass insulation in your attic. Standard sizes for batts and rolls may not fit tightly enough to create an effective barrier against air leaks. Additional materials, such as spray foam insulation, are often necessary to seal the air gaps between studs, joists, or rafters. Since fiberglass can hold moisture, vapor barriers are also needed to prevent water damage and mold infestations.

Additional Fiberglass Insulation Options

Using a specialized blower, loose-fill fiberglass insulation offers an energy-efficient alternative to batt or roll applications. Whether blown into attic spaces, exterior walls, or covered flooring, it forms a tighter seal against the weather than blanket fiberglass.

Is fiberglass insulation the best choice for your home? Contact Sensigreen Heating, Cooling & Insulation for more information. Since 2007, our insulation services have kept families throughout eastern Alabama and western Georgia comfortable in all types of weather. We look forward to doing the same for you!