Certainteed

[windowshopper]

I have seen rankings in order by some of the pros on this site in the past in which Certainteed was in the top 5 or 6. Also have seen positive comments about them from the same people. Certainteed seems to have different spacer systems in different parts of the country such as a swiggle where I live. Could you please tell me when you made those rankings and positive comments about Certainteed which spacer did those windows have that you were referring to?

Thanks