Attic Insulation R Value Map

The higher r value the better insulation performance.

Attic insulation r value map.

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. 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. 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.

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. The r value of some insulations also depends on temperature aging and moisture accumulation. 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. When calculating the r value of a multilayered installation add the r values of the individual layers.

The table below shows what levels of insulation are cost effective for different climates and. The higher the r value the better the thermal performance of the insulation. R value is a measure of insulation s ability to resist heat traveling through it. The amount and r value of your attic floor insulation depends on your geographical location zone.

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.