[motion]

Originally Posted by Zeke

Pretty much. You don't have a big load there in the summer, but you should plan a big enough header for the snow load. We use an inch in height for every foot in width, single story, pretty much any roof load. Don't know a thing about snow.

You'll want to pay attention to flashing as retrofitting flashing is tricky, but it's done all the time. After that, any ol' trim that matches the existing and no one will know.

So, in short, I would not use a block frame which is the easy way to stick a window in a new hole. But, I wouldn't remove a bunch of siding to accommodate the full flange installation. Kinda of an in between situation. I'm sure your carpenter has it covered.

Excellent.... thanks!