Click the button to calculate the approximate r value for this job.
How many inches of insulation in attic.
For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
The main factors that impact the cost are.
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.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
The higher the r value the better job the insulation does at preventing the transfer of heat.
According to home advisor insulating your attic can cost between 1700 to 2100.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Input depth of existing blown in insulation in inches.
Square footage of your attic.
Type and material of your insulation.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
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In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your.
Input length width and desired r value of the area to be insulated.
Contractor or insulation installer s fee.
Having enough insulation in your attic is one of the best ways to save energy on both heating and cooling your home.
How well a particular insulation works is expressed by the r value which ranges from 2 0 to 8 0 per inch of insulation.
The higher the r value the better the thermal performance of the insulation.
Depending on type you will need somewhere between 10 and 18 inches of insulation to meet the recommended insulation values.
For loose fill cellulose this translates to a total depth ranging from 8 inches.
Input length width and desired r value of the area to be insulated.
This calculator is to be used as an estimating tool only.
Inspecting your attic insulation.
Add the right kind of insulation.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.