jasonmi7: on a casement window, the screens are actually on the inside of the house. With the retractable option, you don't have to look at screens all the time when your windows are shut (which is the majority of the time). Maybe it's just a personal preference, but I've never had casement windows, so having screens on the inside is a bit odd to me - so I'm very excited about the retractable option!

I purchased the Marvin Utimate casements too and finding it difficult to find window treatments that fit inside these windows.. The grooves inside for their integrated shades prevents mounting of conventional window treatments using an inside mount. I also purchase a couple of Marvin Ultimates with the retractable screen and there does seem to be a Marvin solution for an integrated shade with it either. Anyone have a suggestion on this? I figured it out!. You do an inside mount on 1" part of the surrounding window inner surface.. It might leave a little sticking out depending on the 1" depth mini bind or cellular shade, but it is doable.

Thanks. I looked at the windows from inside and out today and appreciate the situation better. The problem window is the center window in a set of 5. The center 3 dont crank open. I just realized the two sashes left and right of center look like a newer mode. The vent is more of a slit very close to the bottom rather than a hole. So I am thinking the old owner had some replaced. Also I see now that the sash from the non cranking newer windows (left and right of center) are actually cranking windows with the cranking hardware removed and add a screws where the latch would pull the window in. The problem window from outside looks like it might be a cranking window with hardware removed also but the inside trim work shows no screws or hint that it might be a cranking window. So I wonder if this older window is just better sealed and traps moisture better. Thoughts? Also are these Pella designer series good windows by todays standards? They are only 16 years old and I see caulk added as outside glazing on many windows. The old owner had Pella service these windows often. Thanks for all the quick replies. This site seems very well monitored. Cheers, Jeff

Our windows sensors in the back house of the house aren’t even touching the window, screen or each other?! Seriously are they even connected? In theory if the glass was broken the alarm would sound but that’s not the product we need. But can that even be trusted given the circumstances? Besides we need something that will notify us if the windows are open not that the window has been broken.