This calculator is to be used as an estimating tool only.
How deep to make blow in insulation in my attic.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
How deep to put blown in insulation.
Input length width and desired r value of the area to be insulated.
Insulation input length width and desired r value of the area to be insulated.
Measure your attic to determine how many square feet you need to cover.
Your helper will feed the blown in insulation into the hopper while you work the hose up in the attic photo 5.
The blower should include two 50 ft.
Ten inches of blown insulation provides an insulating value of approximately r 30 1 inch of fiberglass provides about r 2 7 while 1 inch of cellulose is approximately r 3.
Cellulose insulation has a baseline r value of 3 8 per inch.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
A poorly insulated attic lets heat escape through the roof wasting energy used to warm.
Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.
Handy homeowners can install blown in insulation in the attic.