Performance Grade

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Rhubarbgal
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Joined: Fri Mar 22, 2019 11:25 am

Performance Grade

#1 Post by Rhubarbgal » Fri Mar 22, 2019 11:33 am

As we replace the windows and patio door of our central Indiana ranch, we have found this forum to be SO informative. Thank you for your investment in its readers.

My remaining question: of what significance is "Performance Grade?" We are pricing the following available from lauded Angie's List/BBB A+ rated installers in our area:

Polaris: Ultraweld PG 40
Sunrise: Verde PG 30
Okna: 500 or 800 PG 50+
ProVia: Endura PG 50
Soft-Lite: Classic, Pro, Imperial LS, Elements PG 35 & PG 55

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Windows on Washington
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Re: Performance Grade

#2 Post by Windows on Washington » Fri Mar 22, 2019 1:03 pm

It is a good indication of the windows ability to sustain wind load and driving rain.

It is a good summary measurement of the windows overall strength, as an assembly, and its sturdiness.

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HomeSealed
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Location: Milwaukee, Madison areas
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Re: Performance Grade

#3 Post by HomeSealed » Fri Mar 22, 2019 2:47 pm

+1. Its really a direct measure of the windload, etc as mentioned, however the larger factor in my opinion (since you are not likely to see 170mph winds and will have bigger problems with your windows if you do), is that a window with a better structural rating most often achieves that due to superior design and construction, and will also therefore last longer, and perform at a high level for a longer period of time. Pretty simple jump for the most part to say stronger generally means better. There are some things that can throw a little wrench in that like throwing some cheap steel reinforcement in the meeting rail of a poor window can make that rating respectable, however the good news is that you have a solid list of products that you are considering. Not much to be found in those in the way of smoke and mirrors.

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