Cellulose Insulation Vapor Barrier Attic

Located in the attic.

Cellulose insulation vapor barrier attic.

Retrofit work attic insulation. I want to dense pack the walls with cellulose insulation and loose fill the attic area. Whether using loose fill or batts put the vapor barrier closest to the warm side of your installation where hot moist air would get in facing the house s interior in cold climates beneath floor insulation and the attic s interior in hot climates on top of floor insulation. Should you install a vapor barrier over preexisting attic insulation.

No if packed to a density of at least 2 6 lb cu. Some regions don t require a vapor barrier. You have loose fill insulation in the attic which doesn t have a vapor barrier. The house is heated with oil via a hydronic baseboard system.

Good afternoon i live in buffalo ny and am remodeling my home. Stack effect is a major component to home insulation and if you are curious as to what it involves we have written a page here. Kraft faced batt insulation should not be installed between roof rafters if the attic is vented. An adhesive reduces its tendency to settle.

Mold is a huge pain and we at green attic understand that. Made from pulverized newspapers and treated with boron to resist fire and pests. Attic vapor barrier detail for cold climates the best approach for a vented attic in a cold climate is installing a layer of drywall with a good coat of latex paint the paint creates a semi permeable vapor barrier. A recent one on cellulose insulation and air vapor barriers one of a flurry on the topic tipped the scale toward a broader response as we continue to dispel this enduring myth.

The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below. Batt insulation installed over existing batt insulation to increase the attic insulation r value should be unfaced and placed perpendicular to the existing batts. The theory is that part of the moisture vapor in the house is actually blocked by the drywall and paint on the. Blown into place dry or wet.

No the best option is to install un faced or loose fill fiberglass or cellulose on top of your drywall. Infiltration of unconditioned ambient air means that heating and cooling systems must work harder to compensate for heat losses in the. The best way to answer this question in addition to considering the factors above would be to talk to a professional. Radiant barriers radiant barriers shall be installed on top.

Several insulation contractors have recommended loose fill cellulose attic insulation for my 1970 s era ranch in northeastern ct. Here is my question. Central ac was installed 12 years ago with equip.