NAIMA R-Value Certification Program

At JM, we strive to produce excellent products that meet stringent specifications and performance requirements. Through the NAIMA R-value Certification program, the R-values of our US fiberglass batts and rolls are certified to meet thermal performance requirements of the Federal Trade Commission's (FTC) Home Insulation Rule (16 C.F.R. Part 460).

This voluntary program promotes the performance of home insulation materials, upholds industry standards, and showcases brands, like JM, that provide high-quality products.

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What is R-Value?

R-Value Defined

About the Program

The NAIMA R-value Certification program is a voluntary program that allows manufacturers to certify that the R-values for their products comply with the thermal performance requirements of the Federal Trade Commission’s Home Insulation Rule.

NAIMA developed this new program to assure homeowners that they will receive required thermal performance from their fiberglass home insulation products. This, in turn, gives the fiberglass insulation industry the credibility that is necessary to champion policies advancing energy efficiency.

All materials that have received the R-value Certification from NAIMA have been tested by an independent, third-party laboratory and meet the thermal performance required by the FTC.


Certified Importance






Homeowners have many options available when it comes to selecting insulation that’s right for their homes, but it can often be difficult to distinguish the noise from the facts. 

NAIMA’s certification program allows consumers to be confident that the insulation they select will perform as required right out of the bag. It also sets a standard that helps ensure that the fibrous insulation materials entering the market are high-quality, robust materials.

Building professionals and homeowners choose JM fiberglass insulation with confidence that it will effectively manage heat flow and perform to meet all applicable standards.



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