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Caulking exterior window frame?

Posted on 8/14/23 at 9:11 am
Posted by cassopher
Lake Charles
Member since Jan 2010
701 posts
Posted on 8/14/23 at 9:11 am


I have a question for contractors. I just purchased a house and I was going over the inspection report and it says the exterior window frames need caulking. I’ve understood that you should leave the bottoms of the frame open to allow moisture to escape. Should the bottom of the frame be caulked or left open?
This post was edited on 8/14/23 at 10:16 am
Posted by greasemonkey
Macclenny Fl aka south JAWJA
Member since Aug 2012
2765 posts
Posted on 8/14/23 at 9:14 am to
Depends on where the weep holes are. If in bottom leave open I on face caulk but don't cover weep holes
Posted by SuperSaint
Sorting Out OT BS Since '2007'
Member since Sep 2007
140462 posts
Posted on 8/14/23 at 9:18 am to
Posted by shutterspeed
MS Gulf Coast
Member since May 2007
63217 posts
Posted on 8/14/23 at 9:19 am to
quote:

but don't cover weep holes


Don’t be a caulkblocker.
Posted by SWCBonfire
South Texas
Member since Aug 2011
1257 posts
Posted on 8/14/23 at 9:25 am to
Bottom flange of window should be left uncaulked at the water resistant barrier (housewrap, zipwall, tar paper).

The brick is so porous, I am unsure what that would accomplish putting caulk on the brick lug. I would try to find out what windows they are and see what the installation guidelines say. If it says to leave the brick lug unsealed and you seal it, that might cause moisture damage that you would be liable for.
Posted by new92
Middleburg, FL
Member since Feb 2009
595 posts
Posted on 8/14/23 at 10:21 am to
Even if I have weep holes between bricks at ground level? I just stripped and recaulked window frames last month and had never heard of not doing it around the frames. My house is all brick and has gaps down near ground level between bricks that are weep holes.
Posted by good_2_geaux
Member since Feb 2015
740 posts
Posted on 8/14/23 at 2:33 pm to
I believe they are referring to the windows themselves having weep holes (not the bricks).
I know our windows have two horizontal weap holes visible along the front to allow water to drain from the window frame, similar to the first image below.

[/url][/img]

^^^ okay to caulk

[/url][/img]

^^^ not okay to caulk
This post was edited on 8/15/23 at 8:02 am
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