Modification of Approved Framing Components and Addition of New Framing Components A. If a framing component within an approved FPL is modified, the modified component becomes a new member of the approved FPL without additional validation testing if the modification is consistent with the definition of framing product line. B. A new framing component may be to an approved FPL without additional validation testing if the new framing component is consistent with the definition of FPL. Total Product Rating The U-factor of a fenestration product may vary by size. In order to provide a uniform rating procedure for the comparison of fenestration systems, total product U-factor rating is calculated for the model (standard) size per Table 4-3 and Table 5-9. A U-factor rating for sizes other than standard model size can be calculated for informational purposes. Reporting of Ratings The U-factor shall be reported to 0.05 W/(m2-K) (0.01 Btu/h•ft2•°F). All variables used in the formula shall be expressed to at least three significant decimal places. Determining Thermal Transmittance (U-factor) for Sloped Glazing Systems All sloped glazing systems shall be rated for thermal performance characteristics at a slope of 20o above the horizontal (See Section 5.3 [Skylights] for more information); and Sloped glazing systems are validated at vertical position. Complex Product Rating This section provides the details of additional non-residential product and their model (standard) sizes for rating purposes. Spandrel Panel Spandrel panels shall be rated for U-factor at the size specified in Table 4-3. Configuration Details Two lites with one vertical mullion. Spandrel products shall be simulated and tested with intermediate verticals as jambs and
Modification of Approved Framing Components and Addition of New Framing Components A. If a framing component within an approved FPL is modified, the modified component becomes a new member of the approved FPL without additional validation testing if the modification is consistent with the definition of framing product line. B. A new framing component may be to an approved FPL without additional validation testing if the new framing component is consistent with the definition of FPL. Total Product Rating The U-factor of a fenestration product may vary by size. In order to provide a uniform rating procedure for the comparison of fenestration systems, total product U-factor rating is calculated for the model (standard) size per Table 4-3 and Table 5-9. A U-factor rating for sizes other than standard model size can be calculated for informational purposes. Reporting of Ratings The U-factor shall be reported to 0.05 W/(m2-K) (0.01 Btu/h•ft2•°F). All variables used in the formula shall be expressed to at least three significant decimal places. Determining Thermal Transmittance (U-factor) for Sloped Glazing Systems All sloped glazing systems shall be rated for thermal performance characteristics at a slope of 20o above the horizontal (See Section 5.3 [Skylights] for more information); and Sloped glazing systems are validated at vertical position. Complex Product Rating This section provides the details of additional non-residential product and their model (standard) sizes for rating purposes. Spandrel Panel Spandrel panels shall be rated for U-factor at the size specified in Table 4-3. Configuration Details Two lites with one vertical mullion. Spandrel products shall be simulated and tested with intermediate verticals as jambs and
NFRC_100-2014_E0A0.docx