I have a quote from Renewal By Andersen and several vinyl window reps to replace 19 double hung windows (largest is 36" X 62"). I've searched for air infiltration, water penetration and design pressure data for the Renewal windows and cannot locate anywhere. This concerns me and I will not sink that much money into something that just looks nice. I've checked WDMA and NFRC to no avail. Any ideas?
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Don't bother looking too hard. They don't seem to want that info known. I have asked and asked Renewal salesmen to post them on other window forums with no luck. I've had no luck searching the web either.
There numbers must be really impressive, huh?
There numbers must be really impressive, huh?















