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.
The common denominator among varieties of insulation is the r value.
Cellulose as loose or pellet fibers fiberglass or rock wool are generally the types of material used in loose fill insulation.
Here are the installation methods from lowest to highest average r value per inch.
Blown in or loose fill insulation.
Common insulating materials and forms.
The maximum thermal performance or r value of insulation is very dependent on proper installation.
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.
Homeowners can install.
The table below shows what levels of insulation are cost effective for different climates and.
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.
The higher the r value the better the thermal performance of the insulation.
Foam board or rigid foam.
Batt and roll insulation.
Recommended home insulation r values.
While wall insulation is limited by the width of the studs different materials provide higher or lower r values.
Insulation level are specified by r value.
Insulation blankets batts and rolls spray foam insulation.
R value is a measure of insulation s ability to resist heat traveling through it.