N1101.10.3 (R303.1.3) Fenestration Product Rating
Exception: Where required, garage door U-factors shall be determined in accordance with either NFRC 100 or ANSI/DASMA 105.
U-factors shall be determined 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 N1101.10.3(1) or N1101.10.3(2). The solar heat gain coefficient (SHGC) and visible transmittance (VT) of glazed fenestration products such as windows, glazed doors and skylights shall be determined in accordance with NFRC 200 by an accredited, independent laboratory, and labeled and certified by the manufacturer. Products lacking such a labeled SHGC or VT shall be assigned a default SHGC or VT from Table N1101.10.3(3).
TABLE N1101.10.3(1) [R303.1.3(1)]
|FRAME TYPE||WINDOW AND|
|Metal with Thermal Break||1.10||0.65||1.90||1.10|
|Nonmetal or Metal Clad||0.95||0.55||1.75||1.05|
TABLE N1101.10.3(2) [R303.1.3(2)]
DEFAULT OPAQUE DOOR U-FACTORS
|Insulated, nonmetal edge, not exceeding 45% glazing,|
any glazing double pane