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Old 03-16-2012, 01:00 PM   #1
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Caulking Vinyl Windows in brick


Hello. Just closed up a brick wall with a new vinyl window (brick freshly laid).

1. What type of caulking is best for brick to vinyl (regardless of cost)? I see different opinions, amongst which the best seem to be elastomeric caulks such as DAP Dynaflex 230 (not available in BB stores, but supposedly available at sears) or OSI QUAD Advanced Formula.

2. What is the best way to apply and tool it? Surgical gloves? Wet cloth?

Also, there are a few gaps...what is the best way to handle these (see image)?:

Thanks!

Caulking Vinyl Windows in brick-20120316_130705_cropped.jpg


Last edited by rightit; 03-16-2012 at 01:13 PM.
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Old 03-16-2012, 02:01 PM   #2
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Caulking Vinyl Windows in brick


the best type of caulking to use for this situation is a polybutyl caulking it creates a much better seal and sticks very well.. quad works great so does most of the sidings made by Mulco "flextra, flex 9000" avoid dap brands of caulking their terrible the only thing i use by them is the actual dap which is for interior trim

as for application, use a caulking gun with a 1/4" tip cut on the nose of the tube, i find a small bottle of warm water with some dish soap mixed into it works wonders so when you run your finger along it to smooth out the bead it doesnt stick to your finger, water alone wont work

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Old 03-16-2012, 03:07 PM   #3
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Caulking Vinyl Windows in brick


I would clean the old brick before trying to get a good caulk job, no matter what caulk is used.

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Old 03-16-2012, 04:29 PM   #4
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Caulking Vinyl Windows in brick


Both comments above are good advice, especially to get that brick cleaned up. Personally I like quad. Thousands of windows installed and it has not done me wrong.
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Old 03-16-2012, 04:50 PM   #5
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Caulking Vinyl Windows in brick


Ha window guys, take another look at the way that window was installed.
Looks like it was sat to far back in the frame or the brick was sat to far out from the window and it's not all the way under it so now water can run behind the wall in the morter joints and around the window frame.
A bead of caulking will be so close to the drains it looks like it will block them up.
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Old 03-16-2012, 05:03 PM   #6
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Caulking Vinyl Windows in brick


Another vote here for the Quad.
We use it at work. Flows smoothly, sticks well (when surface is clean), tools easily and when it cures it's pliable AND strong.

Of course when I'm at work and getting paid to caulk it's beautiful.....at home I seem to make a mess of it!!
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Old 03-16-2012, 05:21 PM   #7
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Caulking Vinyl Windows in brick


Thank you for the recommendations for caulk. I was kind of leaning toward the Quad after more research.

joecaption:
Good catch. The reality is that, although I told the window company I ordered from that it was going in a wall that was to receive brick, this is what they gave me. Being inexperienced, I didn't even know until the brick guy told me it wasnt' the right window fro brick (after the brick was up...).


Short of ordering a new window, removing the brick, reinstalling the window and re-bricking, can anyone offer suggestions as to how to best solve the issue?

Last edited by rightit; 03-16-2012 at 05:27 PM.
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Old 03-16-2012, 05:53 PM   #8
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Caulking Vinyl Windows in brick


Is it the wrong window? Regardless, after reading joecaption's response, I took a closer look. One of the joints was falling apart, so I removed that brick. The sill is about 3/4" off of the window flange, but maybe that's how it's supposed to be. The problem is worse than I thought. Here are images:

Caulking Vinyl Windows in brick-new-brick_-img_9143.jpg

Caulking Vinyl Windows in brick-new-brick_-img_9145.jpg

Caulking Vinyl Windows in brick-new-brick_-img_9144.jpg
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Old 03-17-2012, 09:38 AM   #9
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Caulking Vinyl Windows in brick


Hi, me again . Should my last questions be addressed to the Concrete, Stone and Masonry forum?

When I ordered this window, I specified that I was installing brick, and I can't find anything in the documentation or the manufacturer's website stating that this window is not designed for brick. Also, it was installed with 1x4's behind the nailer to accomodate the brick. However, it seems to me that the sill bricks should have been cut a bit longer (even if just 1/2") to allow them to fit under the window frame to provide a solid surface for caulking rather than a gap. It also seems to me (for what that's worth...) that even if it's not designed for brick, it can still be made to work. Any help is appreciated. Thank you.

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Old 03-17-2012, 10:39 PM   #10
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Caulking Vinyl Windows in brick


I don't see a problem. First of all, the caulk is your primary defense against water. As water leaks in there, the secondary system (flashing) will take it away.

I'm not the guy to preach on this, but that window should have brick moulding around it. I've installed them without brick moulding, as you have done, and I know I can get sashes and what not for them. However, when it fails or it fails and you can't get parts anymore, it would be good to be able to replace the window at the flange.

In the meantime, I would just clean the window and brickwork, as I have seen you do in another post, then caulk it with the 9000 stuff. I think you should go with black or bronze or whatever they call it. The soap trick is good. I spray it on with a small spray bottle, then smear with my finger. Keep plenty of paper towels handy.
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Old 03-18-2012, 09:56 AM   #11
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Caulking Vinyl Windows in brick


IMO, That type of install should have a buck around the opening. I don't care for windows that close to brick. The only option for replacement is an insert window.

2x6 buck around the opening. New construction window, then trim the outside. Brick mould will work if you like that, but there are other options too.
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Old 03-18-2012, 10:09 AM   #12
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Caulking Vinyl Windows in brick


i wouldn't even attempt to caulk the bottom the way it is now,maybe pull the row lock and replace with a thinner stone so you have some room to install some flashing under the lower flange and over the top of the new sill
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Old 03-19-2012, 08:28 AM   #13
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Caulking Vinyl Windows in brick


Thank you again for your suggestions. At the moment, I'm not sure what to do with it. I do know I'm not comfortable just caulking over it. The brick guy is supposed to look at it today, but although he seems to do good work (other than the sill...), my experience with him leaves me doubtful that he'll say anything other than it's OK, at which point I'll thank him for his time and decide what to do next.

Assuming I haven't worn out my welcome, I'll post back after I've talked to him. Thanks!
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Old 03-19-2012, 12:13 PM   #14
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Caulking Vinyl Windows in brick


Brick can be cut as well. I didn't look too closely, but if you take off some, you'll have 3/8" on the bottom and maybe a 1/4" on the top. I've made the angle cut on a saw as well. I think it makes it easier if all the brick are the same size, and this isn't going to happen with a hammer.
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Old 03-19-2012, 05:46 PM   #15
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Well, the brick guy didn't follow through. I'm not really surprised, but have grown tired of the way contractors do business in this region. Integrity in work and customer service are a rare find. At any rate, I've done most of the work on this project myself, so I guess I'll resolve this issue as well. I'd feel a lot better if there were some brick underneath the frame, but at this point, I just don't have the time to break them all out, cut and reinstall, so I guess flashing would be the next best thing. Actually, the sill bricks aren't going anywhere. I could always break them out and redo them at some point in the future if it becomes an issue. I have plenty of original brick and it will give me time to 'practice' laying it (with brick other than my original, that is...).

So, there seems to be enough room to slide some kind of flashing between the window and the sill. The question is, how should I do it? I'm thinking that I could get a narrow strip of white aluminum, slide it under, gently pry up and run a bead under the flashing to keep it in place on the brick sill, then two more beads, one to seal the flashing to the bottom edge of the window, the other to seal between the outsinde edge of the flashing to the sill. The flashing would need to be pretty narrow, maybe just 1/4 - 1/2" sticking out onto the sill, as I'd like to avoid the white-trash look.

Does anyone have any better ideas for strategy or method? Again, thanks for the ideas and suggestions. At this point, it's a real lifeline. Also, most of the mortar joints on the top of the sill aren't trenched. Does that matter?

Below is an image of the window with a bit of temporary flashing, as we might get some light rain tonight:
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Caulking Vinyl Windows in brick-new-brick_flashing-img_9147.jpg  


Last edited by rightit; 03-19-2012 at 05:49 PM.
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