Attic Insulation R Value Map

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.

Attic insulation r value map. In general an attic s r value should be between r 30 and r 49. The higher the r value the better the thermal performance of the insulation. R value requirements are different based on your location. The higher the insulation r value the greater the insulating power.

Your home s r value score will guide you toward the type of insulation you need. R value refers to the insulation s ability to resist heat flow. R stands for resistance to heat flow. 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.

The table below shows what levels of insulation are cost effective for different climates and. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Colder climates will typically require a higher r value for even greater thermal. R value is a measure of insulation s ability to resist heat traveling through it.

Installing more insulation in your home increases the r value and the resistance to heat flow. Recommended home insulation r values. The amount and r value of your attic floor insulation depends on your geographical location zone. Insulation level are specified by r value.

How do you figure out r value. The higher r value the better insulation performance. When calculating the r value of a multilayered installation add the r values of the individual layers. Install insulation with the proper r value.

The r value of some insulations also depends on temperature aging and moisture accumulation. Insulation is identified and labeled by r value.