How Much Fiberglass Insulation In Attic

Input length and width of area to be insulated.

How much fiberglass insulation in attic.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. An average size attic of 1 200 square ft. Recommended insulation levels for retrofitting existing wood framed buildings. Existing 3 4 inches of insulation.

You can do it yourself for about 500. To make insulating an attic easier grab a helper and set aside two days. Turn off the blower when the void is completely filled. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.

To estimate costs for your project. Fiberglass is just that thin fibers of glass that trap air. Add insulation to attic. Actual costs will depend on job size conditions and options.

If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. One for attic prep and the second to actually blow the insulation. R 30 to r 60 insulation will cost between 0 15 to 0 65 cents per square foot. When installing fiberglass insulation be sure to cover up any exposed skin and wear a mask at all times.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. To insulate under attic floor use a pump to blow in fiberglass loose fill insulation. Will usually cost about 1 600 2 700. To install attic insulation and material cost for cellulose fiberglass with a r value of.

Fiberglass insulation cost fiberglass insulation costs between 0 65 and 1 20 per square foot with an r value of r3 r4 per inch of thickness. On average you can expect to pay between 1 25 to 2 00 per square ft. 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. As the loose fill insulation packs tightly into the space beneath the floor it will slowly push out the hose.

For a basic project in zip code 47474 with 500 square feet the cost to insulate an attic starts at 1 68 3 25 per square foot. Blowing attic insulation isn t hard but it s dusty sweaty work. This calculator is to be used as an estimating tool only. Cellulose is recycled newsprint treated with a fire retardant.

Insert the hose under the floor and turn on the blower.