Attic insulation is like a snug layer for your home, keeping it warm in winter and cool in summer. It also helps prevent air leaking from your attic to the living spaces below, saving energy and improving indoor comfort.

The type of attic insulation you choose will depend on your climate, how you use your home, and your budget. You can select from a variety of options, including fiberglass batts, blown-in cellulose, rigid foam, and spray foam.

Attic Insulation: The Key to Preventing Mold and Moisture Problems

Fiberglass batts are flexible sheets of fiber that fit within standard wall joist and floor joints. They are a good option for most homes because they can be cut to accommodate wires and pipes, and contain flame retardant chemicals to ensure safety. Fiberglass rolls are similar to batts but come in longer segments that you can roll out and place where needed. Blown-in loose fill insulation is made of a combination of fibers or pellets that are blown in by professionals using special equipment. It is effective for attics with irregular joist spacing, lots of obstructions, or uneven surfaces.

Rigid foam insulation is made of polystyrene, polyisocyanurate, or polyurethane and comes in panels or boards that are installed against attic structural components. It is highly durable, provides a high R-value per inch, and resists moisture absorption, which prevents mold growth. It is also more expensive than other types of insulation.

Insulation can also reduce your carbon footprint by lowering the amount of electricity you need to run your heating and cooling systems. It can also improve your health by reducing pollutants that enter the home through the attic. Depending on your climate, proper attic insulation will also help balance indoor humidity levels, which is important for protecting paint, wood, and plaster from damage and preventing the formation of mildew and mold.

316 Insulation of Olympia
2511 Columbia St SW Olympia WA 98501
253-332-7606