Recommended Insulation for Attic Walls

Loose-Fill Insulation

• Loose-fill insulation is made of small bits of foam or fiber, which usually contain fiberglass, rock wool or cellulose. This type of insulation molds itself to the existing space inside your attic. Loose-fill insulation is commonly used to insulate attic walls and enclosed cavities inside your home. This type of insulation is blown into the attic through small holes and requires special equipment. When choosing insulation it is important to consider the R-value of the type of insulation you install. The R-value indicates the level of heat resistance your insulation has, the higher the R-value number the more heat resistant it is.

Batt And Roll

• Bat and roll insulation is also known as blanket insulation, and is often used to insulate attics. This type of insulation is usually made from fiberglass, plastic or mineral wool. Some batt and roll insulation is made from natural fibers, such as cotton. The United States Department of Energy states that batt and roll insulation is usually more expensive than loose-fill insulation.

Installation

• Attic insulation is most effective when it is installed properly by a professional contractor. If you wish to install insulation yourself, follow the instructions and take all recommended safety precautions. Loose-fill insulation requires special equipment to blow the insulation into your attic. Batt and roll insulation may be a better choice for do-it-yourself projects, as it does not require special equipment.

Considerations

• Take the time to inspect your attic before adding insulation. Water spots on the ceiling indicate a leak in the roof that must be repaired before insulation is installed. Wet insulation will not work effectively. Caulk any visible gaps on the interior wall of your attic, foam board insulation strips may be necessary if gaps are large. Avoid placing insulation over soffit vents, as these vents provide necessary ventilation.