Insulated glass minimum thickness
I would appreciate any CONSTRUCTIVE comments.
For the above reasons I would not even consider installing them and tell people to look for another contractor. I will spend the extra money and purchase windows that have stood the test of time. I have no qualms installing a quality product from Anderson, Pella, etc. I know for a fact that 15 or 20 years down the road these windows will still be doing their job and the bad complaints are the minority. This was all that I meant by "with windows you get what you pay for". All of the talk that you receive from salesman about pane spacing and other words is just their way of trying to overwhelm and confuse you. In their world the best salesman wins.
If you have time, write to the above companies and ask for their specification and test data sheets and compare their results to the companies that you are speaking with now. You will receive straight facts from them. You can then make an informed and intelligent choice. It is a major expenditure and not a decision that you want to end up regretting.