Attic Insulation R Value Map

Install insulation with the proper r value.

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. Insulation is identified and labeled by r value.

R stands for resistance to heat flow. The amount and r value of your attic floor insulation depends on your geographical location zone. 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.

How do you figure out r value. Colder climates will typically require a higher r value for even greater thermal. Your home s r value score will guide you toward the type of insulation you need. R value is a measure of insulation s ability to resist heat traveling through it.

You ll see insulation r values indicated on product packaging and often on the product itself. The higher r value the better insulation performance. Installing more insulation in your home increases the r value and the resistance to heat flow. R value refers to the insulation s ability to resist heat flow.

Recommended home insulation 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. The greater the r value the greater the insulating performance. Insulation level are specified by r value.

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. When calculating the r value of a multilayered installation add the r values of the individual layers.