What’s the difference between single-hung, double-hung, and casement windows? 

Thank you very much for this information! Great video

The tall casement windows I have in my bedroom and they are easy to climb into from the outside. Because of this, I never open them. Wish I could.

I hate it when people have double hung windows with full screens and they only open the bottom. You could've saved your money and bought a single hung. We have 32 year old Andersen Narroline Double Hungs and I think I'm the only person that has lived in the duplex that opens the tops. On one of them, I can only open the top 2 inches and if I open it more than that, then it will be stuck open.