The type of window and the
installation method used depends on the problem that is being
overcome and the construction characteristics of the
house. The following problem areas are presented and
explained to help you understand the various directions your new
window installations might take.
Infrared
rays of the sun coming through a window will create
additional heat above the heat that is blocked out by
the dual-pane windows. So where you have a
southern or westerly exposure you nay need a tinting to
block out this heat. This measurement (SHGC) is
different than the U-value (as explained under insulation).
QUANTIFYING
WINDOW INSULATION:
SHGC
– (Solar Heat Gain Coefficient).The measurement of blocking heat from the sun.
Lower Values = Better blockage.
U-Value
– the measurement of heat flowing through a window.
Lower
values=better insulation