Cost lever
Fiberglass frame
pultruded fiberglass
A frame made of pultruded glass fibers — stronger and more dimensionally stable than vinyl, holding paint and shape in heat. A genuine step up, priced like one.
What it means for you
Worth the jump for dark exterior colors, big openings, and the longest ownership horizon — not for faster payback. Confirm the contract actually says fiberglass, not vinyl at a fiberglass price.
Where you'll see it
A material upgrade on the quote; the composite/fiberglass tier runs well above vinyl.
Related terms
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