Posted By b.r.morison on 10 Jul 2013 03:22 PM
Any topic I enter I see eugenepan and Lbear fighting. Lbear has a bit more credibility here, please respect that. To answer the question about different brands - it's nothing wrong to use different manufacturers. You can even find different companies using the same brand products. And as long as you don't want to connect two different brand windows together, it's fine.
I am still waiting for the actual URL on the green building institute window report. I have searched high and low over the internet, and I can't find it. it only exists on the Intus website. I guess quoting from a manufacturer's website without checking to see if it is just propaganda is highly credible.