Attic Insulation Old

Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Attic insulation old.

Choose from two types. So it s time to pay close attention to what s happening up there. When installed properly both types of insulation fill all of the nooks and crannies in a space and. Batt insulation can be added to the underside of the roof between rafters and a layer of batt or loose insulation can be added over the attic flooring.

Both can be added to uninsulated attics or layered over existing material. Radiant barriers which are usually installed in the attic have aluminum foil backing to prevent heat from radiating through. Layer more insulation over the old for more effectiveness. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.

Increase your r value by layering insulation. One of the most common materials containing asbestos fibers is attic and wall insulation. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Rigid insulation is extruded into board form and is often made of plastic.

Foam insulation is sprayed into place and expands to fill the cavity. For diy attic insulation you ve got two choices. But just because your insulation is old doesn t mean it is dangerous. Cold areas require a higher r value like an r 49.

In older homes specifically asbestos may be found in many different materials from pipe insulation to flooring adhesive to roof shingles. Closed cell and open cell aka 2 pound and pound respectively. Signs that your attic insulation is subpar include drafts uneven temperatures between rooms high heating cooling bills and ice dams in the winter i e those pretty icicles that hang from the. Depending on your climate an r value between 38 and 60 is optimal.

Spray foam offers the best attic insulation performance available. The format of house insulation you need depends on where you put it and if you need to control moisture.