How Deep Should Blown Insulation Be In Attic R49

You can do it yourself for about 500.

How deep should blown insulation be in attic r49.

For loose fill cellulose this translates to a total depth ranging from 8 inches up to 16 inches. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. The pros charge 1 500 to 2 000 to do a 1 200 sq ft. Input depth of existing blown in insulation in inches.

Add insulation to attic. Blown in insulation overview. How deep to put blown in insulation. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

This calculator is to be used as an estimating tool only. For ceilings with an attic space above section 402 2 1 allows the reduction in r value for your zone from r 49 to r 38 wherever the full height of uncompressed r 38 insulation extends over the wall top plate at the eaves. Inspecting your attic insulation. Attic insulation is a key to saving energy during the heating season.

Fortunately attic insulation can be upgraded simply by adding more to achieve the recommended. You d need a thickness of. Blowing attic insulation isn t hard but it s dusty sweaty work. Click the button to calculate the approximate r value for this job.

As a homeowner you will enjoy a lifetime of comfort and savings from america s most popular insulation. Existing 3 4 inches of insulation. 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. Recommended insulation levels for retrofitting existing wood framed buildings.

A poorly insulated attic lets heat escape through the roof wasting energy used to warm. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. How much does attic insulation cost.