Section R. 408.31062 - Fenestration product ratingRule 1062. Section 303.1.3 of the code is amended to read as follows:
303.1.3. Fenestration product rating. U-factors of fenestration products (windows, doors and skylights) shall be determined in accordance with NFRC 100 by an accredited, independent laboratory, and labeled and certified by the manufacturer. Products lacking such a labeled U-factor shall be assigned a default U-factor from Table 303.1.3(1) or 303.1.3(2).Exception: Computer simulations by independent NFRC certified laboratories or approval under section 21 of 1972 PA 230, MCL 125.1521 are considered in compliance with this section.
Mich. Admin. Code R. 408.31062
1998-2000 AACS; 2008 AACS; 2010 AACS