Best Insulation To Use In Attic Over Existing Insulation

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Best insulation to use in attic over existing insulation.

The higher the r value the better the thermal performance of the insulation. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

Attic hatch or door. Pull down stair or ladder. For wall insulation in 2 4 walls typically an older home you should use r 13 or r 15 kraft faced fiberglass insulation. R value is a measure of insulation s ability to resist heat traveling through it.

Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. For wall insulation in 2 6 walls r 19 or r 21 kraft faced fiberglass insulation is recommended which comes in rolls too. When the time comes to sell your home a well insulated attic is a plus. Insulation level are specified by r value.

Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. After you air seal openings in the attic floor and cover it with an appropriate amount of insulation nature does the rest. Get in touch today of our certified attic insulation experts for a free estimates 908 588 9575. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

It can be effectively blown over existing insulation and. Vented attics with insulation on the floor are marvels of nature and man. Most attics are insulated with blown in loose cellulose r 3 5 per inch blown in loose fiberglass r 2 5 per inch or fiberglass batts r 3 2 per inch. Affix rigid foam insulation to the attic side of the hatch or door.

Rising as it warms air flows up from the eaves and out of ridge or gable vents carrying off moisture. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. This comes in rolls that fit between the studs of a 2 4 framed wall. Cellulose insulation has an average thermal value of r 3 7 so you d need just over five inches to equal an r 19 batt.