And this justification for the use of the word fail as it relates to fiberglass:
This kind of advertising makes you wish for instant “truth-o-meters”…
Marvin has been making fiberglass windows and before that door sills for 19 of their claimed 20 years – yet fiberglass’ long-term performance is the question?
Now just for fun, Marvin’s Integrity fiberglass windows have an AAMA 625 rating on the durability of its exterior finish. This is the highest rating, making Integrity (fiberglass windows) best in class. Any chance the Renewal by Andersen team will respond to this post with their exterior finish rating?