Attic insulation for homes that are situated in cold climates homeowners need to ensure that they have a minimum of r 49 in their attics this is equivalent to about 16 inches of fibreglass insulation.
R value for attic insulation blown in.
Input length width and desired r value of the area to be insulated.
This calculator is to be used as an estimating tool only.
Tap epa registered pest control blown in insulation 30 lbs.
The r value of loose fill cellulose is r 3 2 to 3 8 per inch2.
Achieving the desired r value depends on both the depth of the insulation and its density.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
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.
Where you live different climates require different insulation r values.
Input depth of existing blown in insulation in inches.
You d need a thickness of.
Depending on where you live it s recommended that attics have a minimum r value of r 30 in warm climates to r 60 in cold climates.
Not sold in stores.
There are many ways to retrofit a home with fiberglass and.
Add insulation to attic.
Recommended insulation levels for retrofitting existing wood framed buildings.
36 bags by tap pest control insulation.
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.
As you can see there s some variation in r value depending on the particular type and brand of products used.
Loose fill fiberglass has an r value of r 2 2 to 2 7 per inch3.
Click the button to calculate the approximate r value for this job.
This calculator is to be used as an estimating tool only.
If your home is in a warmer climate you require an r 38 or higher or about 12 more.