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Author Topic: Laminated vs Dissimilar Glass Option  (Read 5452 times)

sbkim

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Laminated vs Dissimilar Glass Option
« on: April 10, 2012, 05:20:26 PM »

Hello everyone and thank you so much for the informative forum!  I am currently in process of building a home in Chicagoland and I am seriously considering soundproofing within reasonable budget.  Specifically, we are looking into Jeld Wen's Siteline Ex encasement windows (clad) with dissimilar glass option (1/8" + 3/16").  This option only adds about 4% to the cost of windows and according to their website, STC/OITC increases from 28/22 to 32/26, respectively from their standard 1/8" option.  This sounds like a no brainer to me BUT I am curious if I should consider their laminted option which further increases to 34/28.   However, laminated glass option isn't cheap and something I don't want to consider if the benefits are not noticeable.

 So here in lies my question, is increase in STC by 2 points discernible?  Is this worth the extra 50% increase in price???   It's my understanding that 4 points are noticeable. 

On a side note, is it advisable to get dissimilar option for basement windows?  Builder thinks that noise level would be much less since it's below ground...



Thank you so much!

Randy S

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Re: Laminated vs Dissimilar Glass Option
« Reply #1 on: April 10, 2012, 07:19:37 PM »

2 points for 50% increase in cost,my opinion no way...but if your a light sleeper than I might consider it.Now with that in mind, remember your walls will play a roll in the end results...

I agree with the contractor this time, Basement will be quieter than upper floors.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

sbkim

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Re: Laminated vs Dissimilar Glass Option
« Reply #2 on: April 10, 2012, 08:24:37 PM »

Thanks so much Randy!  I am preparing the walls as per your suggestions :)

Wow, my GC got one right?? :)  So, don't even do dissimilar glass for downstairs?

Randy S

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Re: Laminated vs Dissimilar Glass Option
« Reply #3 on: April 10, 2012, 09:17:51 PM »

if there standard or large windows, yes ...but if they are small basement windows you can do a cheaper system if need be down the road..
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

sbkim

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Re: Laminated vs Dissimilar Glass Option
« Reply #4 on: April 11, 2012, 12:51:41 PM »

if there standard or large windows, yes ...but if they are small basement windows you can do a cheaper system if need be down the road..

Sorry Randy but I am a little slow... these are large windows 30 x 60's throughout basement (about 8 windows).  So consider the dissimilar glass option in the basement?  I am thinking it's going to add at most $200 and I can totally see the confusion during installation if I have regular and dissimilar glass. 

Are dissimilar glass option easy to see?  I want to make sure I can verify that they are indeed dissimilar.

Thanks

Randy S

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Re: Laminated vs Dissimilar Glass Option
« Reply #5 on: April 11, 2012, 05:00:24 PM »

yes, consider doing the same windows through out the home and basement.

As far as identifying the difference, 1/16" difference might be hard to see.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040