Cellulose Insulation Vapor Barrier Attic

Central ac was installed 12 years ago with equip.

Cellulose insulation vapor barrier attic.

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. Batt insulation installed over existing batt insulation to increase the attic insulation r value should be unfaced and placed perpendicular to the existing batts. 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.

No the best option is to install un faced or loose fill fiberglass or cellulose on top of your drywall. 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. 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. Retrofit work attic insulation. 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. An adhesive reduces its tendency to settle.

Good afternoon i live in buffalo ny and am remodeling my home. The best way to answer this question in addition to considering the factors above would be to talk to a professional. Air vapor barriers with cellulose insulation air infiltration and exfiltration has a major impact on the r value that insulation delivers and as a result on the thermal performance of an insulated dwelling. Radiant barriers radiant barriers shall be installed on top.

No if packed to a density of at least 2 6 lb cu. Should you install a vapor barrier over preexisting attic insulation. Made from pulverized newspapers and treated with boron to resist fire and pests. Mold is a huge pain and we at green attic understand that.

Several insulation contractors have recommended loose fill cellulose attic insulation for my 1970 s era ranch in northeastern ct. Infiltration of unconditioned ambient air means that heating and cooling systems must work harder to compensate for heat losses in the. 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. Located in the attic.

The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below. There have been no problems with the ac to date. Here is my question.