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Old 09-19-2010, 01:11 AM   #1
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New vinyl windows, house has siding


Ok, need a window contractor or expert advice here.

I'm replacing old windows with vinyl, but the old windows have a flange underneath the siding.

I've seen where people have just carefully run a circ saw (at a limited depth) around the perimeter of the window, discard the siding pieces, remove the window (because you now have unfettered access to the nailing flange), install the new window, and put in a 1x4 trim piece around the perimeter of the window, and seal the trim to the siding.

Any problem with doing this?

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Old 09-19-2010, 07:08 AM   #2
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New vinyl windows, house has siding


What kind of siding?

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Old 09-19-2010, 08:20 AM   #3
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New vinyl windows, house has siding


Replacement wnidows, which fit into the old window frames, or new contruction windows, that requires the complete old frame be removed??? Nothing needed outside for replacement windows. Most new contruction windows have a nailing fin the requires siding removal, to install the window and to properly flash it. If you try to take shortcuts, you could end up with leaky windows.
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Old 09-19-2010, 10:53 AM   #4
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New vinyl windows, house has siding


It's almost certainly cedar siding.

So, the correct method is to pry all of the cedar planks off that touch the windows??

Sometimes, around here, the siding is a fiberboard that runs vertically. Prying it up to get at the nailing flange to replace the window would destroy it, which would mean re-siding large portions of the house.
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Old 09-19-2010, 11:56 AM   #5
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New vinyl windows, house has siding


you could trim the siding away 3.5'' from around the windows then install the new units and retrim
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Old 09-19-2010, 12:17 PM   #6
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New vinyl windows, house has siding


Quote:
Originally Posted by mdalli View Post
Ok, need a window contractor or expert advice here.

I'm replacing old windows with vinyl, but the old windows have a flange underneath the siding.

I've seen where people have just carefully run a circ saw (at a limited depth) around the perimeter of the window, discard the siding pieces, remove the window (because you now have unfettered access to the nailing flange), install the new window, and put in a 1x4 trim piece around the perimeter of the window, and seal the trim to the siding.

Any problem with doing this?
Sounds like a good idea to me
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Old 09-19-2010, 12:19 PM   #7
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New vinyl windows, house has siding


i didn't see that
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Old 09-19-2010, 01:48 PM   #8
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New vinyl windows, house has siding


I don’t know about the 1x4. I’d use 2x4 for trim so the trim is proud of the siding and window, so you have something to caulk to.

I’d only cut a couple of inches around the window to get the old out and the new in then hold the trim against the window, scribe and cut again.

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