How do i cut out metal frame windows when the nail flange is covered with siding?
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you will have to peel siding back to get the window out properly. getting it apart is the trick and its hard to explain how to do it. but it just naps back together if you can figure out how to get it apart. Maybe try a handy friend that could show you. Good luck. :)
Take the siding down, it's easy enough to put back up.
Since the metal frame is coming out anyway when you find the section that is nailed in cut the frame on both sides of the nail. Remove the loose frame and bend the left over part away from the frame and use a reciprocating saw to cut the nail under the siding. Not the easiest thing to do but it beats damaging the siding.
Take siding down. You'll need it down in order to put the new window in, right? Or is it an aluminum storm window? If so then you can almost rip the darn thing off the wall, after you've taken the glass out of the frame,
Cut the siding back (just enough to get window out) around the frame of the window, you will need to do this anyway to get the new window into the opening (if you're using the nailing flange). After install of new window, caulk really well around edges (use backer rod if necessary). Use 1"x3" primed cedar to frame new window this will cover up caulk joint and the saw cut marks in siding.
I just did a similar project to my house, the trim actually looks nice if painted to match the rest of the trim on the house...
max, use a sawsall and cut the frame out, the part thats nailed/screwed in can be removed with a metal blade and slip it in behind the metal and siding and saw the nail off. I'll the n slide out without removing the siding.
If you order retrofit windows with flanges, you will need to cut the flanges off or cut the siding back cleanly to about 3 1/2".the width of the window casing that you will need to replace and cover the outside of the window flanges.
Otherwise, order 'box' windows (flange removed) and slide them in and your done except to insulate and caulk.
On those they screw in at the bottom and top of the window in the slider area...flush so not to obstruct the window from sliding..
Cut your siding back approx 3 1/2 inches around old window. After you install new window you can fill in the cut back with cedar 2x4 or regular 2x4 wrapped with aluminum. Depending on siding, caulk siding to 2x4 and 2x4 to window. Pay to have it done if you are not handy. Its not to difficult but takes some know how
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