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New construction window installation


cbound's Avatar
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10-29-16, 07:10 PM   #1  
New construction window installation

I'm getting ready to replace some old aluminum windows with some new construction windows with the nailing flange and a built in J-channel. These are the Anderson brand 70 series windows from Home Depot.

Overall, the installation seems very very simple. The only problem I foresee is the top of the windows at my front porch butt up against the top of the porch overhang. Being that water in this area is not an issue, I was thinking I'd just trim the J-channel down as necessary and continue with the installation like normal, with the exception of probably having to use a bit less flashing at the top.

Will this cause any issues or does anyone have a better idea?

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10-29-16, 10:49 PM   #2  
So this is under the porch?

If so I understand your comment regarding not a water problem.

Is it possible to remove the material from the ceiling, install the window with proper flashing then reinstall?

 
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10-30-16, 03:43 AM   #3  
What type siding do you have, now? Vinyl, wood, metal?? A picture further back showing this would help. If it is an enclosed area, you will most likely trim the top nailing flange level with the brick mold front of the window, since it sticks up a little further. I don't think you have enough space for the complete nailing flange.

 
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10-30-16, 06:36 AM   #4  
Yeah, it's under the porch, so water shouldn't be an issue at all, but I'd like to try to still do the installation as proper as possible.

The house is vinyl siding, no brick or anything like that. To make space for the nailing flange I plan to remove part of the ceiling as suggested and then just replace it when I'm done. *Hopefully that will work and I'll be able to expose enough of the window frame that way*

Here's a further back shot:

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10-31-16, 09:24 AM   #5  
Chandler was right, there was not enough space for the complete nailing flange, so the top portion had to be removed. When they built the house they connected the overhang on top of the existing window flange. It was a mess!

Thanks for the help guys.

 
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10-31-16, 02:25 PM   #6  
This thread is related to another, just so everyone is aware. http://www.doityourself.com/forum/ex...different.html

 
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