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1. For A2 buildings U. = 0.38 Max. is permitted. 2. Roof/ceiling assemblies in which the finished interior surface is the underside of2theroof deck, a maximum value U is 0.09 BTU/h ft. F." (i) Add the following EQUATION 1-A on a new page of the energy code numbered 5-6.1: "EQUATION 1-A UO = M x UwAw + UgAg + UdAd A WHERE: UO = the average or combined thermal transmittance of the (j) Add the following Table 5-2C after Table 5-2B at page 5-8 of the energy code: "TABLE 5-2C Insulating/Solar Glass Equivalence gross exterior wall area. A = the gross exterior wall area. Uw = the thermal transmittance of the opaque wall. Aw =opaque wall area Ug = the thermal transmittance of the glazing. = glazing area. Equivalent Shading Coefficients Climatological Zones 1 2 3 4 5 6 7 8 9 0.55 0.55 0.58 0.64 0.63 0.66 0.68 0.70 0.70 After calculating compliance of U values, the designer may substitute equal amounts of solar glass with the above shading coefficients (or lower) for insulating glass with U values of 0.65 (or higher)." (k) Paragraph 503.2(a) at page 5-10 of the energy code is hereby amended as follows: "503.2 (a) Calculation Procedures. For purposes of sizing HVAC systems, the procedures described in Chapters 24, 25, or 26 of Std. RS -1 may be used, or an equivalent computation procedure. Ag Ud = the thermal transmittance of the doors. Ad =door area. M = correction factor for mass based on specific heat, density and climate." Equivalent Shading Coefficients Climatological Zones 1 2 3 4 5 6 7 8 9 0.55 0.55 0.58 0.64 0.63 0.66 0.68 0.70 0.70 After calculating compliance of U values, the designer may substitute equal amounts of solar glass with the above shading coefficients (or lower) for insulating glass with U values of 0.65 (or higher)." (k) Paragraph 503.2(a) at page 5-10 of the energy code is hereby amended as follows: "503.2 (a) Calculation Procedures. For purposes of sizing HVAC systems, the procedures described in Chapters 24, 25, or 26 of Std. RS -1 may be used, or an equivalent computation procedure.