What are Contour Windows?

Chris, FYI : There a integrated frame design that provides precise transition between the vehicle body and the window frame! Resulting in superior sealing, reduced wind noise, improved operation and excellent protection of the window edge. I looked it up the other day when I was looking at the new Winnebago Forza! I sure like all the electronics going into that coach Super Apple friendly Apps., Sirius Radio, Rand McNally GPS just to name a few!

Thanks for all the replies! It looks like contour windows are similar to the large rear vent windows in minivans, except those tilt out from the back instead of the bottom.

Effy wrote:
A lot of manufacturers are starting to use the frameless windows. THey are much sleeker as the smooth pane rests on a gasket on the sidewall. They don't slide open like typical rv windows. Instead they wind out at the bottom with a knob on the inside. I am not sure if they are functionally better, but aesthetically they look much nicer and cleaner. Give it a year and all lines will have them. Another evolution in design that will eventually trickle down.

Had those on our previous Carriage. They are nice, however they don't open much and they just tilt out from the bottom as you mentioned. Not the greatest for getting air circulation on a breezy day. But you could have them open in the rain. Having a fantastic fan would be a must to help bring the air in.

They were great when having to clean them with a squeegee.

A lot of manufacturers are starting to use the frameless windows. THey are much sleeker as the smooth pane rests on a gasket on the sidewall. They don't slide open like typical rv windows. Instead they wind out at the bottom with a knob on the inside. I am not sure if they are functionally better, but aesthetically they look much nicer and cleaner. Give it a year and all lines will have them. Another evolution in design that will eventually trickle down.

I'd bet those are the kind of windows you see on the high end rigs like Prevost, Marathon, etc. From the outside you do not see the rubber & metal frame just a smooth finish across the body and glass. I don't think they are sliders--to accomplish this they are like a casement window that may have some type of tilt out mechanism. They do look great!

Curve of sidewal?. What class A has curved sidewalls?

Looks, probably follow the curve of the sidewall...