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Patching stucco around newly installed vinyl window

Patching stucco around newly installed vinyl window

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Old 03-06-18, 01:26 PM
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Patching stucco around newly installed vinyl window

I have 6 windows that have been installed properly, and now I have to patch the stucco. I would like to know each layer I need to install, from the window flashing to the final coat of stucco. I am aware that I should begin by applying 2 layers or so of building paper underneath the first coat of stucco. Is it necessary that I painstaikingly try to squeeze and tuck the sides of the paper underneath the edges of the existing stucco so there is a 6 inch overlap? That is really a pain if I do. Also I am hearing about some casing bead that is supposed to go between the vinyl sides of the window and the stucco. Any idea of what this is?
 
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Old 03-06-18, 02:21 PM
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I'm not the stucco expert but yes, 2 layers of felt. You generally break out the stucco so you expose at least 6" of intact paper. You install a stucco casing bead which is just a metal edging that goes on top of your paper and caps the end of the stucco. The casing bead should be kept 3/8" away from the window (or whatever your mfg requires) as an expansion joint for the window. That gap gets a foam backer rod, then caulk.
 
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Old 03-06-18, 02:34 PM
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Google "Kirk Giordano" and watch his videos. He's a stucco guy in the SF Bay area. Pretty much explains what and how to do all kinds stucco work. His videos are actually very enjoyable to watch.

Yes you need to push the paper as far as possible under the old stuff. Of course you can't push pass nails/staples so you do the best you can. Casing bead is installed both under and over the paper depending up on where it is located. Not all windows require casing bead (mine didn't). On mine, the stucco actually is meant to go into a "key" in the window frame. Follow your window manufacturer direction. The stucco should have been broken back to expose paper and lathe, not cut. Do not rely on "caulk" to ensure water tightness. Flashing is your best friend.

Stucco is notorious for having water leaks if not done correctly. Kirk has videos that pretty much cover all situations.
 
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