Target Value for Fenestration Assemblies (*) Climate Zone Window U-Factor Window SHGC
(W/[m.sup.2]-K; Btu/[ft.sup.2] -hr-[degrees]F) 1 0.38/0.29 (0.067/0.051) 0.26/0.22 2 0.38/0.29 (0.067/0.051) 0.26/0.22 3 0.35/0.24 (0.062/0.042) 0.35/0.23 4 0.35/0.24 (0.062/0.042) 0.35/0.23 5 0.35/0.24 (0.062/0.042) 0.35/0.23 6 0.25/0.19 (0.044/0.033) 0.40/0.24 7 0.25/0.25 (0.044/0.044) 0.40/0.40 8 0.25/0.25 (0.044/0.044) 0.40/0.40 (*) Details for Glazing System Performance/Enhanced Glazing System Performance
is not one of the most important parameters when a building with standard WWR is analysed, but in this case is different.
The solar heat gain coefficient (SHGC
) measures the amount of solar radiation that passes through the window.
4) Solar Heat Gain Coefficient (SHGC
): For climates that require a lot of heating, TDDs should have a medium to high SHGC
The Solar Heat Gain coefficient (SHGC
) for the glazing used in the selected building is 0.75, which means the amount of solar heat gain passing through the glazing is 75%.
is an index that determines the total quantity of solar radiation that passes through a window, while the SC shows the degree to which solar radiation is blocked.
Solar heat gain--expressed as the solar heat gain coefficient (SHGC
)--measures how much of the sun's energy that strikes the window and frame actually moves into the building as heat.
Sweet Homes General Contracting (SHGC
) has reassured the Ajman Realty Regulatory Agency (ARRA) that 200 phase one villa units on the $600m 'Ajman Uptown' project are on track for completion in September 2012.
--a solar heat gain coefficient of the windows (SHGC
Thermal Mass (thickness, thermal conductivity, specific heat capacity, density, internal thermal mass, and windows SHGC
Sometimes U and R are more effective than SHGC
, and a small amount of insulation in the right place will do even more.
A second important window measurement is the Solar Heat Gain Coefficient (SHGC
), which is the amount of solar gain a window allows.