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Replacement
window frame types
The material used to manufacture
the frame governs the physical characteristics of the window, such as
frame thickness, weight, and durability, but it also has a major impact
on the thermal characteristics of the window.
The window U-factor, as given on the NFRC certified rating or label,
incorporates the thermal properties of the frame, as well as the
glazing. Since the sash and frame represent from 10 to 30 percent of the
total area of the window unit, the frame properties will definitely
influence the total window performance.
Aluminum window frames
Wood window frames
Vinyl window frames
Hybrid composite frames
Fiberglass frames
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