Attic Insulation Thickness Calculator

Input length and width of area to be insulated.

Attic insulation thickness calculator.

Greenfiber insulation calculator easy to follow steps for calculating the perfect amount of insulation needed for your project. 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. R value is a measure of insulation s ability to resist heat traveling through it. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

The higher the r value the better the thermal performance of the insulation. Products where to buy support about us blog contact us homeowners homeowners contractors builders architects. This calculator is to be used as an estimating tool only. Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.

Inspecting your attic insulation. Insulation level are specified by r value. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. 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.

The table below shows what levels of insulation are cost effective for different climates and locations in the home.