Rigid Insulation R Values Thickness

A higher r value means that the insulation will do a better job of holding in conditioned air whether that s heat in the winter or cool air in the summer.

Rigid insulation r values thickness.

Traditional loose fill insulation such as fiberglass or cellulose has an r value between r 2 0 and 3 5 per inch of thickness. Polyiso insulation thickness r value chart. 1 844 446 7858 my account. Rigid insulation r value by comparison usually ranges from r 4 0 to 6 5 and may get as high as r 8 7 depending on the insulation material.

Because of this i often get questions about which type of foam board insulation to use and what r values these products provide. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data. For example a wall with 3 fiberglass batting r value of 10 8.

Foam board insulation types. I ve written several posts about how to insulation basement walls in which i promote the use of foam board insulation as the first line of defense against moisture and mold. Understanding r value thursday december 13 2018 what does r value mean. Rigid insulation is usually made up of fibrous materials or plastic foams.

There are three basic foam insulation board products on the.