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Old 07-05-2014, 07:03 PM   #1
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Window Caulking


I'm in the process of removing and applying new caulk for two windows. These windows are directly above a basement door and there's a water drip right inside the sliding glass door when it rains on that side of the house. At first, I thought it was the exterior light where the water was coming inside the house, but I have since sealed the light fixture well.

Now, I'm removing the caulk from the window above and will apply new caulk. Take a look at the picture and you will see how the window sits above the brick fašade. In the past, I have caulked up into the groove while leaving the weep hole open. It seems that I may not have to caulk into that groove, and just below the vinyl where it meets the brick.

I'm not stingy on caulk. I just don't want to obstruct the weep hole or anything around it.

Thoughts?
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Old 07-05-2014, 08:06 PM   #2
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one more picture showing window above basement sliding door. leak is right inside sliding door along the edge where the drywall meets the door.
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Old 07-05-2014, 10:28 PM   #3
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I went to HD to pick up some caulk. I didn't want Silicon based b/c it's difficult to remove and clean up. I was eyeing the Dap dynaflex 230, but then the associate recommended Phenoseal. I've never heard of this brand. Any thoughts?
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Old 07-05-2014, 11:53 PM   #4
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I'd stay away from anything that says "Easy Water Clean-Up".

Personally I'd only use a polyurethane based caulk for your application. "Vulkem" and "Quad" are just two brands.

You'll need Mineral Spirits for clean-up with poly caulks. Get it on your clothes and it's there for life...In your hair and you'll be cutting it out but it will stick to that brick nicely.
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Old 07-06-2014, 12:27 PM   #5
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Quote:
Originally Posted by kwikfishron View Post
I'd stay away from anything that says "Easy Water Clean-Up".

Personally I'd only use a polyurethane based caulk for your application. "Vulkem" and "Quad" are just two brands.

You'll need Mineral Spirits for clean-up with poly caulks. Get it on your clothes and it's there for life...In your hair and you'll be cutting it out but it will stick to that brick nicely.
Got your message....thanks.

But, my question is how should I apply the caulk? Should I

1. put down a heavy bead and just seal everything
2. only seal the gap between the vinyl and the brick
3. keep weep holes open and seal everything else. logically, this is what most people do but I'm wondering if the cleared weep holes have contributed to the leak. The gap right below the weep holes is very narrow between the vinyl and brick and the last thing I want is for the weep holes to direct water into an opening.
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Old 07-06-2014, 06:57 PM   #6
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You definitely do not want to plug the weep holes.

It's hard to say from the pictures what's causing the leak below especially on a brick wall. Clean up and re-caulk, if that doesn't do it I'd go to a hose test.
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Old 07-06-2014, 09:28 PM   #7
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Post caulk
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Old 07-07-2014, 12:32 PM   #8
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Seal the brick as well with a penetrating mortar sealant.

Don't care for pocket sill windows and I wouldn't be surprised if they still leak.
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Old 07-09-2014, 11:31 AM   #9
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Yep, this is a hard one, what did you end up doing?

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