Wanting to replace aluminum frame windows in a brick veneer house. Long description to follow.
Searching on the interweb has not been fruitful for my situation. I find info on replacing broken panes, but not on replacing the entire window.
My house was built in 1966 with aluminum frame single pane windows. The kind of frame and brick veneer are the problem. Anytime I see windows installed/replaced the window frame has flange/tab and the house has siding. That is a straight forward install. Window opening is framed, window installed securing flage to framing, insulate/waterproof, and trim window outside and inside.
Here are some pictures
of 2 of the windows. There are 3 windows 58 3/4" x 43 3/4" and 3 windows 43 1/2" x 72". The 72" wide windows are slider windows while the other are single hung. The single hung windows do not have counter weights to keep window open, but a kind of "spring rod" that is visible inside the frame. The measurements are of the window openings from inside (sill to sheetrock and sheetrock to sheetrock) because the frame sits on top of the sheetrock. The sheetrock is even with the brick opening.
My thought on how to replace these windows is to remove the existing window, sill, and sheetrock (it is 1/2"). Frame out the opening with 2x4 (adding 1/2" ply to adjust for sheetrock) to have something to secure new window (frame with flange) to. Then water/weatherproof and add trim. The 72" wide windows I'd frame in a center post and install two windows. Finishing the inside would be interesting because sill depth from frame to wall is 5" on 72" windows and 4 3/4" on others. I am less worried about that than the earlier part of installation and sealing.
So if that is a proper retro-fit install I need to calculate if I am close to a stand size flanged window frame or order custom sizes. I understand the framing I described might not enough for the flange and to attach exterior trim, so it might require losing some of pane size to more framing.
My other concern is how is the alum frame is secured in place. There are no indications of screws/nails through frame and sheetrock into framing. Is it possible there is a flange on all sides of frame (similar to the new windows I want)? That would have meant the sheetrock was done, then the frame installed, and bricking done last. A coworker told me they are probably collapsable frames, and after removing panes the sides could be pryed out individually.
I have all requisite tools and a fair amount of diy experience (framing, sheetrock, hanging doors, flooring, plumbing, electrical, but none with windows). I do not believe this project is outside of my abilities.
Thank you for reading my long rambling question.