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carr0406
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# Posted: 19 Jun 2015 11:41am
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I accidentally purchased a replacement window for my cabin but I'm trying to use it anyways. I have the opening flashed but I don't know how to finish the outside. I can't find snap on fins so I'm wondering if I could just use foam, aluminum and sealant? Then add Trim around that?
I thought of taking it out and making a Window Frame but I don't think there is room all the way around so hoping to not have to do that. Any other ideas?
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TheCabinCalls
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# Posted: 19 Jun 2015 03:56pm - Edited by: TheCabinCalls
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We did the same thing... You can get nail fins for almost any window. For us they just slid into a channel on the outside edges.
You can definitely screw the window in and then use low expansion foam to seal it up. However, you will still need to flash it. Your bottom flashing looks okay, but I am not sure about the top...it looks like water could roll under then on top of the window.
Check out page 2,3 and 4: http://www.finehomebuilding.com/how-to/articles/flashing-replacement-windows.aspx
Also, even with a nail fin it doesn't mean it will stop water. See page 7 here: http://www.finehomebuilding.com/how-to/install-replacement-windows-and-flashing-corre ctly.aspx
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conquistador
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# Posted: 22 Jun 2015 11:39am
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We used replacement windows in our cabin. I framed the outside of the windows with 1x3 and left an overhang around the window opening that I was able to butt the window up to. Pushed the window up to the frame and installed it, then came back and caulked heavily around the window and frame I built. The windows have been in over a year and have been through about every kind of weather imaginable (12" of snow, tropical storm Bill most recently) with no leaks or issues.
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carr0406
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# Posted: 22 Jun 2015 11:46am
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Great, thanks for the feedback. I will fix the top flashing and maybe add a drip edge to the top. I also like the idea of using backer rod to fill the gaps, caulk and then cover with aluminum and trim.
I'm a little confused on the sill. I have the Window sitting on a piece of beveled cedar siding to create a slope outward but do I just leave the bottom open and cover with Trim so water could drain out? I could also fill with backer rod and caulk it and hope for the best...
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TheCabinCalls
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# Posted: 22 Jun 2015 02:48pm
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The sill usually has a channel on the bottom to keep water from travel down the front and back. You could router a groove in the cedar board you have.
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