How Deep Should Blown Insulation Be In Attic R49

Blowing attic insulation isn t hard but it s dusty sweaty work.

How deep should blown insulation be in attic r49.

When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect. The pros charge 1 500 to 2 000 to do a 1 200 sq ft. As a homeowner you will enjoy a lifetime of comfort and savings from america s most popular insulation. For loose fill cellulose this translates to a total depth ranging from 8 inches up to 16 inches.

Blown in insulation overview. A poorly insulated attic lets heat escape through the roof wasting energy used to warm. Click the button to calculate the approximate r value for this job. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

Fortunately attic insulation can be upgraded simply by adding more to achieve the recommended. 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. How deep to put blown in insulation. Input depth of existing blown in insulation in inches.

This calculator is to be used as an estimating tool only. Recommended insulation levels for retrofitting existing wood framed buildings. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. How much does attic insulation cost.

You can do it yourself for about 500. Inspecting your attic insulation. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. Existing 3 4 inches of insulation.

Add insulation to attic. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. You d need a thickness of.