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