Which glass package??!!

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Happygo
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Joined: Thu Jun 13, 2013 10:03 am

Which glass package??!!

#1 Post by Happygo » Thu Sep 05, 2013 10:08 am

I am replacing 14 double hung old wood windows, have gotten multiple estimates and decided to go with the Vytex Fortis.
The standard R-4 glass package has the following specs:
Ufactor: 0.26
SHGC: 0.29
Visible Transmittance: 0.53

For ~$50 more per window, I could upgrade to R-5:
Ufactor: 0.22
SHGC: 0.28
Visible Transmittance: 0.49

I'm not sure the upgrade really would do much for me in terms of performance, what do you think?
Also, is it worth upgrading the screen, do you think? ( I haven't gotten an estimate for that)
Thanks in advance for any feedback!

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HomeSealed
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Re: Which glass package??!!

#2 Post by HomeSealed » Thu Sep 05, 2013 2:23 pm

$50 is very little markup on that, so it is a good deal. It will take a while to pay for itself purely in energy savings, but it will make the home more attractive to buyers should you sell anytime soon, as well as offer a higher degree of comfort and better condensation resistance if that is a concern.
I don't think that that you will go wrong either way, just a matter of what makes more sense for you and where your budget is. Both are good values, so if your budget allows, go for it. :)

Happygo
Posts: 15
Joined: Thu Jun 13, 2013 10:03 am

Re: Which glass package??!!

#3 Post by Happygo » Thu Sep 05, 2013 3:58 pm

Thanks Homesealed.
I am a little concerned about the VT # being below 0.5. I read somewhere that under 0.5, the windows may start to have an appearance of being tinted, almost like wearing sunglasses. I really want to preserve as much light as possible since I have a lot of trees and shade in my yard that decrease the light entry in the house.
If you don't mind me asking, what is your experience with this?
I really appreciate your responses.

fenestra
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Re: Which glass package??!!

#4 Post by fenestra » Thu Sep 05, 2013 4:44 pm

We did TP on our home (did DP in basement). Glad we did, weight not an issue, VT not an issue. Plenty of light comes through, not nearly the "sunglasses" effect I feared. Would not change my decision in the least.

I don't know how they measure VT but I am guessing dirty DP and screens knock the VT down more than we know.

Happygo
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Re: Which glass package??!!

#5 Post by Happygo » Fri Sep 06, 2013 6:46 am

Thanks Fenestra, for your comments.

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HomeSealed
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Re: Which glass package??!!

#6 Post by HomeSealed » Fri Sep 06, 2013 8:48 am

.49 is still pretty good for TP glass. I carry some samples that have DP in one sash and TP in the other, and you really can't tell a difference. I wouldn't worry about it unless you are EXTREMELY sensitive to the issue.

Happygo
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Joined: Thu Jun 13, 2013 10:03 am

Re: Which glass package??!!

#7 Post by Happygo » Fri Sep 06, 2013 9:25 am

Thank-you, Homesealed. I am thinking we will go with the upgraded glass.
Thanks for all the feedback!

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Windows on Washington
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Re: Which glass package??!!

#8 Post by Windows on Washington » Sat Sep 07, 2013 5:31 pm

+1

I prefer triple pane and think it's wise investment as well.

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