VTc = The center-of-glazing VT for the reference glazing or reference glazing with the film applied, from columns 3 and 6 of Table 5-1, according to Section 5.7.4.1 Perform the calculations with VTc, VT0, and VT1 values to six significant digits. Report the final VT value to two significant digits. Testing If a fenestration product with applied film cannot be simulated in accordance with Section 5.7.4.1, the center-of-glazing test procedure in Section 5.7 shall be used to determine the SHGC and VT of the reference fenestration product glazing system with applied film. These values shall be used to calculate the total product SHGC and VT according to Section 5.7.5 above. 5.7.6.1 Center-of-Glazing Component Test Procedure The center-of-glazing component SHGC (SHGCc) shall be tested in accordance with NFRC 201 see Section 7.2.2.1 – of NFRC 201 for details on how to install a specimen for testing. Guidance for the appropriate use of NFRC’s approved procedure for Center-of-Glazing Component Test Procedure (VTc) will be published as an addendum to this procedure or as a Technical Interpretation. 5.7.6.2 Fenestration Product Test Procedure Not applicable the frame and edge-of-glazing SHGC and – VT values of reference fenestration products must be simulated. 5.7.6.3 Total Fenestration Product SHGC for Non-Model Sizes Not applicable all reference fenestration products with – applied films are to be at model sizes. Figures Figure 51 Residential Fixed Aluminum Frame Reference Product
VTc = The center-of-glazing VT for the reference glazing or reference glazing with the film applied, from columns 3 and 6 of Table 5-1, according to Section 5.7.4.1 Perform the calculations with VTc, VT0, and VT1 values to six significant digits. Report the final VT value to two significant digits. Testing If a fenestration product with applied film cannot be simulated in accordance with Section 5.7.4.1, the center-of-glazing test procedure in Section 5.7 shall be used to determine the SHGC and VT of the reference fenestration product glazing system with applied film. These values shall be used to calculate the total product SHGC and VT according to Section 5.7.5 above. 5.7.6.1 Center-of-Glazing Component Test Procedure The center-of-glazing component SHGC (SHGCc) shall be tested in accordance with NFRC 201 – see Section 7.2.2.1 of NFRC 201 for details on how to install a specimen for testing. Guidance for the appropriate use of NFRC’s approved procedure for Center-of-Glazing Component Test Procedure (VTc) will be published as an addendum to this procedure or as a Technical Interpretation. 5.7.6.2 Fenestration Product Test Procedure Not applicable – the frame and edge-of-glazing SHGC and VT values of reference fenestration products must be simulated. 5.7.6.3 Total Fenestration Product SHGC for Non-Model Sizes Not applicable – all reference fenestration products with applied films are to be at model sizes. Figures Figure 51 Residential Fixed Aluminum Frame Reference Product
NFRC_200-2014_E0A0.docx