Was chatting with my neighbor yesterday about windows (yeah, thrilling stuff, I know), and he mentioned that crank-operated windows (casement windows, I guess they're called?) actually seal tighter than sliding ones. Apparently, the crank mechanism pulls the window snug against the frame, making them better for insulation and noise reduction. Never really thought about it before, but makes sense now that I think of it. Anyone else heard this or got other neat window trivia?
Funny you mention that—I actually swapped out a couple sliding windows for casement ones last summer, and the difference was pretty noticeable. The crank mechanism really does pull the window tight against the seal, and I noticed less draftiness almost immediately. Plus, they're easier to clean from inside since you can swing them open fully.
One thing I did notice though: if you have screens on the inside (like mine do), bugs sometimes get trapped between the screen and the glass when you close them. Not a huge deal, but something to keep in mind if you're squeamish about insects.
Speaking of window trivia, did anyone else know that double-hung windows were originally designed for better ventilation? You can open both the top and bottom sashes slightly, letting hot air escape through the top while cooler air comes in from below. Pretty clever design for something so simple... Has anyone tried this method during summer? Curious if it actually makes a noticeable difference.
"Has anyone tried this method during summer? Curious if it actually makes a noticeable difference."
I've tried the double-hung trick a few times, and honestly, I'm not totally convinced. It does seem to help a bit with airflow, especially on breezy days, but on those hot, still summer afternoons... not so much. Maybe my house layout isn't ideal for it or something. Still, it's worth experimenting with before cranking up the AC—might save you a few bucks.
I've installed both sliding and crank windows in a bunch of homes, and honestly, the crank (casement) windows usually win out for airflow. The double-hung trick can help a little, but you're right—on those super hot, still days, it's not gonna do miracles. Casement windows open fully outward, catching breezes from different angles, so they tend to pull in more air even when it's barely moving outside.
One thing I've noticed is that placement matters a lot. If your windows are positioned opposite each other or at least on different sides of the house, you get a nice cross-breeze going. Had a client last summer who swapped out sliders for casements in their living room and kitchen, and they said it made a noticeable difference. Not exactly AC-level cooling, but definitely more comfortable.
Still, every house is different, so your mileage may vary. If you're thinking about upgrading anyway, casements might be worth considering—especially if airflow is a priority.