Types Of Insulation And Their R Values

In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation.

Types of insulation and their r values.

Blown cellulose carries an insulation r value of 3 7 and fiberglass holds an r value of 3 14. Cellulose as loose or pellet fibers fiberglass or rock wool are generally the types of material used in loose fill insulation. For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another.

Batt and roll insulation. Insulation blankets batts and rolls spray foam insulation. Homeowners can install. The higher the r value the better the thermal performance of the insulation.

The table below shows what levels of insulation are cost effective for different climates and. The maximum thermal performance or r value of insulation is very dependent on proper installation. Recommended home insulation r values. R value is a measure of insulation s ability to resist heat traveling through it.

There are a number of different materials such as fiberglass and cellulose as well as a number of different forms such as batting and blown in. The common denominator among varieties of insulation is the r value. Fiberglass batts for standard 2 4 walls are now available in low medium and high density products that range from r 11 to r 15. Common insulating materials and forms.

While wall insulation is limited by the width of the studs different materials provide higher or lower r values. Here are the installation methods from lowest to highest average r value per inch.