Handbook of Energy Audits
Adjustable Lowered Windows Windows incorporating adjustable external ... Louvers are extruded aluminum or redwood, 3 to 5 inches wide, and are manually controlled. ... of solar gain and glare; when closed, they provide privacy and security. ... Thermal Barriers Multilayer, Roll-Up Insulating Window Shade A multilayer ...
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phrc's website is phrc.psu.edu