Per DC Energy Conservation Code (ECC) C303.1.3 & R303.1.3, the U-factor and SHGC of fenestration products shall be labeled and certified in accordance with NFRC. Fenestration is a defined term in the ECC and includes skylights, vertical windows, curtain walls, and storefront glazing. Products lacking such certification may use default value tables. Additional information on labels and certificate labels can be found at www.nfrc.org.
The technical requirements of the rating, certification and labeling program of NFRC 100 are set forth in the NFRC 700 Product Certification Program, and NFRC 705 Component Modeling Approach Product Certification Program.
Approved NFRC Labels and certificates
The U-value and SHGC must match labels and label certificate or be better than what is on the plans. CMA Bid Reports will not be accepted in lieu of a label certificate. The following are approved NFRC fenestration certificates that must be available at inspection. Below are examples of approved certificates:
Typically found on residential products.
NFRC Certificates: CMA Factory Built
Typically found on non-residential factory built products e.g. storefront system and curtain wall system.
NFRC Certificates: CMA SITE BUILT
Typically found on non-residential site built products e.g. storefront system and curtain wall system.