Posted yesterday regarding Martin replacement windows. They have vinyl and fiberglass windows available. The idea of fiber glass really interest me since you can order them with a stainable veneer on the inside. This window I am told also comes as a sash and track replacement for glider windows. Anyone have any info on fiberglass vs vinyl? I hate to spend a bundle on junk if that 's what fiber glass is.
Thanks for your patience Frank
I'm thinking fiberglass is a better product than vinyl. They make insulated doors (stainable) which are a cut above insulated steel, so I don't see why it wouldn't be good for windows too.
Section 7.5 entitled "Better Frame Materials" states,
"The best energy performance in window frames has been achieved using a fiberglass frame with foam insulation in the frame cavities."
You can download the full PDF document here. I highly recommend it if you're shopping for windows.
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