Equation 5-3 Where Total door system U-factor Ut = Top rail U-factor Utr = Top rail area Atr = Bottom rail U-factor Ubr = Bottom rail area Abr = End stile U-factor Ues = End stile area Aes = Meeting rail U-factor Umr = Meeting rail area Amr = Door panel core U-factor Udpc = Door core area Adpc = Edge-of glazing U-factor Ueg = Edge-of-glazing area Aeg = Center-of-glazing U-factor Ucg = Center-of-glazing area Acg = Projected total door system area Apt = Figures Figure 5-11 Garage Door U-factor Area Weighting, Sectional – Figure 5-12 Garage Door U-factor Area Weighting, Elevation View – Figure 5-13 Garage Door Front Elevation View and Perimeter Details –
Equation 5-3 Where Ut = Total door system U-factor Utr = Top rail U-factor Atr = Top rail area Ubr = Bottom rail U-factor Abr = Bottom rail area Ues = End stile U-factor Aes = End stile area Umr = Meeting rail U-factor Amr = Meeting rail area Udpc = Door panel core U-factor Adpc = Door core area Ueg = Edge-of glazing U-factor Aeg = Edge-of-glazing area Ucg = Center-of-glazing U-factor Acg = Center-of-glazing area Apt = Projected total door system area Figures Figure 5-11 – Garage Door U-factor Area Weighting, Sectional Figure 5-12 – Garage Door U-factor Area Weighting, Elevation View Figure 5-13 – Garage Door Front Elevation View and Perimeter Details
NFRC_100-2017_E0A0.docx