Attic Insulation Old

Increase your r value by layering insulation.

Attic insulation old.

Rigid insulation is extruded into board form and is often made of plastic. But just because your insulation is old doesn t mean it is dangerous. Radiant barriers which are usually installed in the attic have aluminum foil backing to prevent heat from radiating through. Choose from two types.

Cold areas require a higher r value like an r 49. Closed cell and open cell aka 2 pound and pound respectively. In older homes specifically asbestos may be found in many different materials from pipe insulation to flooring adhesive to roof shingles. Depending on your climate an r value between 38 and 60 is optimal.

Both can be added to uninsulated attics or layered over existing material. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. 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. Layer more insulation over the old for more effectiveness.

So it s time to pay close attention to what s happening up there. Spray foam offers the best attic insulation performance available. Foam insulation is sprayed into place and expands to fill the cavity. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

One of the most common materials containing asbestos fibers is attic and wall insulation. For diy attic insulation you ve got two choices. When installed properly both types of insulation fill all of the nooks and crannies in a space and. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

Keep your space dry with faced insulation. 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.