When installed properly both types of insulation fill all of the nooks and crannies in a space and.
Attic insulation old.
Closed cell and open cell aka 2 pound and pound respectively.
Increase your r value by layering insulation.
Foam insulation is sprayed into place and expands to fill the cavity.
Spray foam offers the best attic insulation performance available.
One of the most common materials containing asbestos fibers is attic and wall 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.
This old house general contractor tom silva explains the wide world of spray foam insulation how to install insulation learn how to beef up your wall s weather protection in 4 easy steps.
Layer more insulation over the old for more effectiveness.
Radiant barriers which are usually installed in the attic have aluminum foil backing to prevent heat from radiating through.
For diy attic insulation you ve got two choices.
Cold areas require a higher r value like an r 49.
Keep your space dry with faced insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
They sport insulation values of approximately r 6 5 and r 3 6 per inch 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.
The format of house insulation you need depends on where you put it and if you need to control moisture.
Choose from two types.
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.
So it s time to pay close attention to what s happening up there.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Both can be added to uninsulated attics or layered over existing material.