Windows replacement


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Old 02-25-21, 08:55 AM
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Windows replacement

We currently have aluminum windows that are very old, and I want to replace them with vinyl windows. The house was built in 1987 and has vinyl siding. The measurements from the inside are 37"x56" (rough opening), but the measurement from the outside are 35 5/8" x 57 1/4" (J channel to J channel). Which measurement should I give the home improvement?
 
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Old 02-25-21, 12:14 PM
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Something doesn't sound right there. Check the top and bottom of your rough opening and see if either one of them has a piece of framing on it that can be removed. I'd like to hear the answer to that question plus I'd want to see photos of the inside and out before I answer.
 
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Old 02-25-21, 02:30 PM
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There is sheetrock all around the window, so I made some cut at the corners, and the frame may be embedded. See pictures


 
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Old 02-25-21, 07:24 PM
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'rough opening' is the measurement from the house framing members that the window is nailed into. I can't tell from your pics, but you need to remove the interior window casing and trim to measure the distance between the studs.
 
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Old 02-25-21, 08:03 PM
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Typically your rough opening measurement will be about 3/4 over the outside measurement on a window like that. You would need to rip off the drywall jambs and any shims to know for sure. But if you are planning on putting the siding right back on where it is now, you would get a window with a nail fin and you would likely be safe to go with the outside measurement j channel to j channel.

You always want to tell the company ordering your windows EXACTLY what size the window should be.. do NOT tell them rough opening size or let them make a deduction from the measurements you give them. You typically have to make this VERY CLEAR to them. This is called "tip to tip measurement."

Typically if you give it to them in writing and make it very clear that if the windows are not exactly the size you specify, that they will be eating the cost of reordering them, then they start to listen to you. I can't count the number of times I have heard people complaining that their windows are way too small.
 
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Old 02-26-21, 04:51 AM
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I just read your response this morning and made the mistake you mentioned on your post. Bought replacement windows with rough opening 37"x56" with no nail fins, and they adjusted the measurements to 36 3/4" x 55 1/2". My current windows do not have casing or trims as they are embedded 3/4" into the sheetrock. Lesson learned, now, what are your suggestions on the removal of the old window and the replacement? I have been watching so many videos and none of them apply to my unique situation. I am eager to learn, I have the tools, I have the patience, and I just need some guidance. Any help would be appreciated.
 
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Old 02-26-21, 05:49 AM
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I would cancel the order asap.
 
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Old 02-26-21, 09:05 AM
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I am unable to cancel the order.Since there are no exterior stops and the interior stops are actually sheetrock, should I replace the windows from the outside? If so, remove vinyl siding, remove J channels, (or trim/cut siding to fit new window?), remove old window sashes, clean frame, and apply flashing tape. Or should I remove all sheetrock around the interior windows and replace them with wood interior stops?
 
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Old 02-26-21, 09:26 AM
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I think you are on your own. That is going to be a real cluster. Sorry.
 
 

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