Replacement Windows - Fiberglass

Anyone have any experience with fiberglass windows? They appear to be more than vinyl, but more sturdy. Do they have to be painted?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
For a while they were making fiberglass garage doors but the sun destroyed them and you never seen them any more.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.