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Author Topic: Strike one...  (Read 1841 times)

danwriter

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Strike one...
« on: December 06, 2014, 11:17:21 PM »

Just had new Jeld-Wen Series 4500 windows installed, with the intent of reducing outside noise into the house. Nine windows, rated at STC 34, $4,150. Hugely disappointing results. They look fine (the old wood ones were beginning to show rot) but any noise reduction is not at all noticeable. I understand STC and other noise-transfer measurements — I was an audio engineer — so I didn't have unrealistic expectations about what the windows could attenuate, especially in lower frequencies (STC measurement stops below 125 Hz). So you were going to still hear blown car engines, but routine tire noise? That should have been gone. Can still hear birds chirping and crickets doing whatever it is crickets do. The Jeld-wens were mosty a waste of money when it comes to noise-transfer abatement.
Am willing to take another shot at it, but there is very little depth in my sills for an inside overlay gap. Any suggestions?
Thanks.

Randy S

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Re: Strike one...
« Reply #1 on: January 07, 2015, 04:21:13 PM »

Danwriter,

Sorry to hear about the disappointing results with the Jeld-wen windows.
The key to getting a viable reduction would be the size of the air gap and the mass of the second panel.

How much space do you have to work with?

Randy S.
Randy Sieg

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