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Old 08-13-2011, 12:22 AM   #16
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Trim caulking before paint?


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Old 08-13-2011, 12:36 PM   #17
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Trim caulking before paint?


LOL, ------ never caulk above or below metal z-flashing. Caulking above seals the end-grain (edge) of sheathing where it drains out if ever wet inside, sealing under metal could retard expanding/contracting of trim until caulk joint fails and provides easy entry for wind-driven water by capillary action as the caulk would bridge (negate) the drip-edge it had before.. Thanks for sharing......

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Old 08-13-2011, 01:01 PM   #18
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Trim caulking before paint?


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LOL, ------ never caulk above or below metal z-flashing. Caulking above seals the end-grain (edge) of sheathing where it drains out if ever wet inside, sealing under metal could retard expanding/contracting of trim until caulk joint fails and provides easy entry for wind-driven water by capillary action as the caulk would bridge (negate) the drip-edge it had before.. Thanks for sharing......

Gary
I've never seen that myself Gary, especially on the underside of the z. Why would someone think the need to caulk that. On the top I could see if the bottom edge of the siding wasn't primed and the water sitting on the sill of the z was wicking up into the siding. I would agree, that as a matter or routine, never caulk that area. But, sometimes you have to do what you have to do to stop moisture entry. The beauty of the internet/youtube is that anyone can have their own show, but it's a drawback as well.
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Old 08-13-2011, 03:56 PM   #19
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Trim caulking before paint?


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I've never seen that myself Gary, especially on the underside of the z. Why would someone think the need to caulk that. On the top I could see if the bottom edge of the siding wasn't primed and the water sitting on the sill of the z was wicking up into the siding. I would agree, that as a matter or routine, never caulk that area. But, sometimes you have to do what you have to do to stop moisture entry. The beauty of the internet/youtube is that anyone can have their own show, but it's a drawback as well.
I always run a bead on top of the trim and seat the z to it so essentially I am caulking the bottom of the z but you just can't see it.

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