MI Windows (yes, I know) questions about models
Before you go down the road about how much MI windows suck, yes, I know. No choice in the matter here in northern va.
So, now that we are past the brand choice we are into the specific models. My builder states they are using "tier 2" which means nothing. It isn't a model number for MI and it isn't a meaningful term otherwise.
That being said, I am looking for more information on the available models/lines to push the builder to satisfy my needs. After reading the website's information, the confusion has set in big time.
I need three types of windows/doors. Some single hung, some double hung and a patio door. All are sized and specced based on the community standards, so either white or bronze outside with simulated lights in all windows. Not a problem, because every line in the MI windows model can do the above.
Where it falls down is when we get to "which model is best." The website is brutally clear in the matter, that their energy core line is the best. Strongest PVC, best performance for energy and best sound abatement.
Unfortunately as soon as I select Virginia as my location, all options for energy core disappear and I am left in the dark. The rest of their lines have little information available about STC, though they have some decent information on the 1600 line about energy efficiency, air infiltration and the like. They can have laminated glass and they can have foam inserts. Most of the other lines are a bit more unclear, and it is completely unclear to me what the differences are between lines though I did see that the 1600 has a "sloped sill" which I take it is considered "better" than a pocket sill?
I found one site that talked about window strength (R vs LC, where lc is "better"? with PG of 50 vs 25 vs less, which I think I understand) and showed some of the MI windows lines test results. It seemed that the only high strength windows were the 1600hd and the EC lines, though it skipped many window options as well so it didn't really help much.
Can someone help shed some light on the model choices and if/how to get the energy core line over here? I will be near an airport and want to max out the STC on the windows.
Are there any equivalent MI windows options to the EC line here if thats not a possibility?
(if it matters, exposure is south for front and east for long dimension. West will be shaded.)