Attic Insulation R Value Map

Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

Attic insulation r value map.

Recommended home insulation r values. When calculating the r value of a multilayered installation add the r values of the individual layers. The amount and r value of your attic floor insulation depends on your geographical location zone. Installing more insulation in your home increases the r value and the resistance to heat flow.

The map and chart show each region of the u s the subsequent zones and corresponding r values. The r value or r value is a measure of thermal resistance ability to resit heat traveling through it used in the building and construction industry. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. R value is a measure of insulation s ability to resist heat traveling through it.

R value insulation chart 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 r value of some insulations also depends on temperature aging and moisture accumulation. The higher the r value the better the thermal performance of the insulation. 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.

Insulation level are specified by r value.