Inspecting your attic insulation first things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
Insulation amount in attic.
The main factors that impact the cost are.
The average recommended level is 17 inches of r60.
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.
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Square footage of your attic.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
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.
In zone 4 the average minimum requirement for attic insulation is 11 inches of r38 fill.
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Insulation input length and width of area to be insulated.
According to home advisor insulating your attic can cost between 1700 to 2100.
Learn more about attic insulation in these how to videos or at energystar gov.
Type and material of your insulation.
In zone 3 the average minimum requirement for attic insulation is 9 inches of r30 fill.