PGT WindGuard(impact glass) Windows

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Joined: Sun Dec 19, 2004 6:54 pm

PGT WindGuard(impact glass) Windows

#1 Post by daykart »

Hi. I did not see anything about PGT windows, and so I hope I am not making you repeat yourself.
I live in south Florida(west coast) in a community whose association allows ONLY bronze windows. I am thinking of replacing 16 of my windows with the PGT impact glass aluminum windows.
How do they stack up against so many of the other window companies product. I was given a quote of $800 for one 76 x 37 single hung window and I need 8 of them. Likewise I will need 8 picture windows 27 x 37 an a quote of $350 for one.
Would I do better to look elsewhere?

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Joined: Thu Oct 07, 2004 10:25 am
Location: East of the Mississippi


#2 Post by Oberon »

In your neighborhood, impact windows are definitely a very good idea.
I am not sure how much knowledge you have on impact windows overall, but basically they are toughter versions of regular windows using heavier hardware, laminated glass, special high-tensil glazing silicones, and more stringent mounting requirements.

PGT is unique in that they laminate their own glass.
There are a few (very few) other window manufacturers that manufacture their own laminated glass as well, but all of those that I am aware of use a liquid resin process that isn't really suited to modern production methods.
PGT uses a Poly Vinyl Butryl (PVB) interlayer which is the same interlayer that is in the windshield of your car. The difference is that your car uses a .030" interlayer and for an impact glass product they use a .090" interlayer.

Most of the major North American window companies also offer impact windows. There are four primary interlayer materials used in impact windows:

PVB, which I have mentioned,
Liquid resins, which I have also mentioned,
SGP (Sentry Glass Plus) interlayer which is a rigid plastic material (Dupont Surlyn) that is bonded inside a glass sandwich like PVB,
and finally, the glass clad polycarbonates - which are a layer of thin polycarbonate film bonded to glass using urethane resins.

Then there are the hybrids including:

interlayers that use PET film bonded to PVB within the glass sandwich (Oldcastle offers Solutia's version of this product and Cardinal offers Dupont's version of this product - both available to their respective window manufacturer customers),
resin laminated using PET film as an interlayer,
and a few other versions that are not produced in any great volume and would be unlikely to be available to the average home owner.

After all that, I will say that PGT has a reputation for being a very good laminator. I will also say that PGT offers a more economical impact product than pretty much any other window company that competes in that market. I will also say that PGT is the major player in the Florida hurricane window market.
On the quality of PGT windows overall, I cannot comment, but I would recommend before any major purchase such as hurricane resistant windows that you do your homework and see what other people who have these products think of them.
I know this sounds like I am making a subtle insult to PGT, but I am not...I am really suggesting that the best people to ask are the people who own them.

Hope this helps

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