Attic Insulation Depth Chart

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

Attic insulation depth chart.

Insulation level are specified by r value. Inspecting attic insulation there are several factors to consider when inspecting loose fill blown in attic insulation. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. The higher the r value the better the thermal performance of the insulation.

For diy attic insulation you ve got two choices. For loose fill cellulose this translates to a total depth ranging from 8 inches. The amount of insulation you need depends mainly on the climate the type and size of your home and your fuel use patterns and. There are other factors to consider.

Please enter depth in inches please enter depth in inches. 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. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. Inches more and more customers are striving for experiences.

Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. The chart shows the r value of this insulation. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Click the button to calculate the approximate r value for this job.

Then use the numbers in the chart at right to estimate its r value. Make sure the fill s depth is uniform across the attic. Note from this chart that the ideal r value differs for each part of your home. Estimated depth of current insulation.

Compare insulation r values before you buy. The higher the r value the greater the insulating power. This calculator is to be used as an estimating tool only. Pull up and dispose of any material that s compressed water stained or moldy it s useless.

We feel that through the use of superior building materials and the appropriate practices we can create sanctuaries at home. R value is a measure of insulation s ability to resist heat traveling through it. 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 your attic to reach r 30 if you live in zones 2 or 3. R means resistance to heat fl ow.

These include the type depth and density of the insulation. Loose fill or batt the common term for blanket insulation. Shop insulation accessories.