Vytex Prodigy (apparently similar to Fortis) vs Okna 800

[marylander]

Hi, I'm about to change the windows of my house (original 1964 windows that do not work well anymore) and I have two quotes that I like, for 15 double hungs, 1 slighlty larger picture and 1 very big bow (5-lite, 110 x 80):

Vytex Prodigy fusion, with ratings U-factor 0.27, SHGC 0.19, VT 0.43 and air leakage 0.30

Okna 800, with ratings U-factor 0.26, SHGC 0.28, VT 0.52 and air leakage 0.02

Both are very close, around 26,000 - 27,000.

I'm concerned about the air leakage rating on the Vytex, I reviewed the brochure and it says the Fortis has an AL of 0.04, but the Prodigy I was offered seems to be much worse (the Company, with great reputation in my area, told me Fortis and Prodigy are similar, while the Vytex Potomac would be a step above them). I'd also prefer a higher VT, but that might be fixable changing the window efficiency package I guess.

Is one of this windows better than the other in structural quality / expected life? What would you choose?

Thanks a lot for the help. Your forum was very educating for someone like me without any previous experience on window replacement.

[Ricknez]

The Vytex is not a .30. The sticker says <.30.
its a .03 or .04. I know the company that offers the Vytex prodigy .

[toddinmn]

I’d go with the 800.

[Windows on Washington]

+1. I think the Fortis is a 0.04 or 0.05...but it's one of the top windows on the market.

The 800 is a 0.01 in this case. If they are close in price, I do think the 800 is a bit more robust frame and product. If we were talking about the 500 comparison to the Fortis, that is more of a 1:1.

[TheWindowNerd]

+3 800DX