Best Insulation To Use In Attic Over Existing Insulation

It can be effectively blown over existing insulation and.

Best insulation to use in attic over existing insulation.

A bag of cellulose runs about 11 50 and will cover 36 7 square feet at a. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Affix rigid foam insulation to the attic side of the hatch or door. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.

This comes in rolls that fit between the studs of a 2 4 framed wall. Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. Pull down stair or ladder. Rising as it warms air flows up from the eaves and out of ridge or gable vents carrying off moisture.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. 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. When the time comes to sell your home a well insulated attic is a plus. After you air seal openings in the attic floor and cover it with an appropriate amount of insulation nature does the rest.

For wall insulation in 2 6 walls r 19 or r 21 kraft faced fiberglass insulation is recommended which comes in rolls too. Vented attics with insulation on the floor are marvels of nature and man. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. Attic hatch or door.

In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. R value is a measure of insulation s ability to resist heat traveling through it. 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.

Get the most effective way to prevent heat loss in winter and contain cool air in summer by getting the best attic insulation services at above beyond exteriors remodelers. For wall insulation in 2 4 walls typically an older home you should use r 13 or r 15 kraft faced fiberglass insulation. The higher the r value the better the thermal performance of the insulation. Insulation level are specified by r value.