What is R-Value?

R stands for resistance to heat flow. The higher the R-Value, the greater the insulating power and resistance to heat flow.

Depending on where you live and what area of your home you are insulating, different R-Values are recommended. For example, a colder climate requires higher R-Values than a milder, more temperate one. In certain applications, R-Values may be added together for increased thermal resistance. For information on your region and home, see What R-Value Do I Need? in the FAQ section.


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What R-Value Do I Need?

Depending on where you live and the part of your home you’re insulating (walls, crawlspace, attic, etc.), you’ll need a different R-Value.

What is Facing?

A material — either Kraft paper or plastic — is attached to the fiberglass insulation to help control moisture, mold and draft.