01:45PM | 09/25/05
Member Since: 05/13/05
40 lifetime posts
Hey W4U! How you doing?


As W4U said, argon gas infill does nothing for sound attenuation in a window. It is for energy considerations only.

Also as W4U said, your best bet would probably be to get a laminated glass storm window, preferably interior installation, for sound your current situation.

Your current 7/16" glass spacing in the IGU isn't the best for sound control, unfortunately. Sound control windows would generally require a much wider air space or else laminated glass as mentioned.

Just for a bit of trivia, windows with laminated glass called "Keepsafe" (no matter who actually made the laminated lite, or who the window company is) consists of a .060" Saflex PVB interlayer and "Keepsafe Plus" is a .090" interlayer. For comparison, a typical car windshield has a .030" PVB interlayer.

Saflex is a type of PVB interlayer manufactured by Solutia, which is a spinoff of Monsanto. The other type of PVB interlayer generally used in North America is called Butacite and it is manufactured by DuPont.

Finally, as W4U well knows, I can get VERY wordy and in depth (to the point of near-death experience), but if you have any interest in actual window sound performance issues or data, I would be happy to try to help. As usual, W4U's answers are precise and right on the money.

Have a great day!


06:15PM | 09/25/05
Member Since: 09/09/05
21 lifetime posts
Hi Oberon!

I noticed your name on this site and was hoping you'd chime in on this one since this is right down your alley.

If anyone here doesn't already know it, Oberon has got to be the top expert on glass to be found anywhere on the internet. Even though I've been in the window business 30 years, I haved really learned a lot from his sharing of his knowledge and thank him for it.

He is a valuable resource for any site lucky enough to have him giving advice.


04:13AM | 09/26/05
Member Since: 09/18/05
6 lifetime posts
Have ordered storm windows to fit in were the screens were on the inside. Thanks for your info will poat the results. Cheers
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