MIL-HDBK-1011/2
4.5.5.1
Wind Admitting Devices. Wind-admitting devices which exclude solar
light and heat include opaque or reflective louvered windows or walls and
opaque sliding or pivoting window or wall panels. A wall may also consist of
a combination of window types which may be used alone or in combination to
provide ventilation, view, or privacy or to provide protection from the sun or
rain (Figure 35). One such combination wall might consist of:
a) a sliding glass panel which provides view and light while
eliminating air, dust, insects and rain.
b) a sliding panel of opaque louvers for providing ventilation air
while protecting from the sun and light rains (Insulated opaque panels may
also reduce the outward flow of heat in winter or at night when ventilation
for cooling is not desired.)
c) a sliding panel of insect screening for providing air while
eliminating insects.
Fixed opaque louvers may be used on the lower part of a window wall
with operable louvers above for ventilation, light and view. In warm-humid
climates such as the tropics, it is important to admit wind for cooling while
preventing the admittance of wind driven rain. In Window and Ventilator
Openings in Warm and Humid Clomates, Koenigsberger, Miller, and Costopolous,
(1959), reported that only M-shaped fixed louvers satisfy the requirement of
keeping the rain out and allowing the breeze to enter without deflecting it
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