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  • Table 5.1 (Fenestration)

List of Table 5.1 (Fenestration)

Zone Category Fenestration ratio Fenestration Assembly Max. U-Value Assembly Max. SHGC Action
Zone 2 Vertical Glazing 25%-50% All Assemblies 2.38 0.25
Zone 3 Vertical Glazing 25%-50% All Assemblies 2.38 0.25
Zone 3 Vertical Glazing 50%-100% All Assemblies 1.87 0.25
Zone 2 Vertical Glazing 50%-100% All Assemblies 1.87 0.25
Zone 1 Vertical Glazing 50%-100% All Assemblies 1.87 0.25
Zone 1 Vertical Glazing 25%-50% All Assemblies 2.38 0.25
Zone 3 Skylight 0%-3% Skylight with Curb, Glass 4.259 0.35
Zone 2 Skylight 0%-3% Skylight with Curb, Glass 4.259 0.35
Zone 1 Skylight 0%-3% Skylight with Curb, Glass 4.259 0.35
Zone 3 Vertical Glazing 0%-25% All Assemblies 2.668 0.25
Zone 2 Vertical Glazing 0%-25% All Assemblies 2.668 0.25
Zone 1 Vertical Glazing 0%-25% All Assemblies 2.668 0.25