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Old 11-24-2013, 11:45 AM   #1
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WHICH caulk/adhesive/silicone for installing exterior doors?


Something I can get at Home Depot/Lowe's. I'm driving myself crazy. I thought I was going to do the right thing and get silicone based because I thought I had determined from reading that it would be better used on an unpainted exterior application. Then I read that it will not adhere to wood?

Everything I read says, "CAULK THIS, CAULK THAT, CAULK HERE, CAULK THERE" but nothing says what kind and I'm getting incredibly frustrated.

What specific product should I be using to seal my Jamsill to my OSB?

What specific product should I use to seal my brickmold cased french door around the perimeter?

I've spent a couple hours reading and I'm only further confused. I thought this OSI Quad would work but then I read on it should not be used at a thickness/depth of less than 1/4", so I don't think that is going to work either.

Thank you.

http://www.finehomebuilding.com/how-...-sealants.aspx


Last edited by Dave88LX; 11-24-2013 at 11:56 AM.
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Old 11-24-2013, 11:59 AM   #2
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WHICH caulk/adhesive/silicone for installing exterior doors?


Do you really have a plastic jamb sill or is that a typo and you just have a threshold?
http://www.jamsill.com/images/downlo...stallation.pdf
I only use Alex 230 for trim.
50 year warranty
Water clean up
Tools great.
If there's big gaps use round foam to fill in then caulk.
Biggest mistake people make is using to much caulk. Makes no since to apply to much and have to go back and wipe it all off.
It does not to be all over the face of the trim and just looks like poop.
Only needs to fill the gap.
Get yourself a bowl of warm water.
Apply the caulk, wipe with a finger, clean off your hands in the bowl and use a stiff sponge dipped in the water to wipe the caulking smooth.

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Old 11-24-2013, 12:14 PM   #3
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WHICH caulk/adhesive/silicone for installing exterior doors?


I have the real deal authentic plastic Jamsill that I ordered. I have their instruction sheet you linked, but that says "caulking".

So this Alex 230 would be appropriate in all these locations I mention to include in the area behind the brick mold?

EDIT:

Apply in temperatures above 40F (4,44 C).
  • Do not apply if rain or freezing temperatures are forecasted or before full cure can occur. Cold weather and
  • high humidity will slow down cure time.

It's 31 out. Matter? I can't imagine people stop building houses because it's cold out.

Last edited by Dave88LX; 11-24-2013 at 12:24 PM.
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Old 11-24-2013, 12:29 PM   #4
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WHICH caulk/adhesive/silicone for installing exterior doors?


Silicon goes under the Jamsill but not under the threshold to Jamsil area.
I use nothing but the Alex 230 for all the inside and outside trim.
Someone may suggest something like Geo seal or some other solvent based caulking but there miserable to work with and you have to use a solvent to get the extra off.
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Old 11-24-2013, 01:15 PM   #5
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WHICH caulk/adhesive/silicone for installing exterior doors?


Quote:
Originally Posted by joecaption View Post
Silicon goes under the Jamsill but not under the threshold to Jamsil area.
I use nothing but the Alex 230 for all the inside and outside trim.
Someone may suggest something like Geo seal or some other solvent based caulking but there miserable to work with and you have to use a solvent to get the extra off.
Silicone meaning Alex 230? Or something different? Nothing between Jamsill and threshold?
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Old 11-24-2013, 04:36 PM   #6
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WHICH caulk/adhesive/silicone for installing exterior doors?


Alex 230 is latex, not silicone. Alex is not used under the Jamsill, use silicone between the flashing under the Jamsill and the bottom of the Jamsill.
If you used anything under the threshold the Jamsill would be useless. It will just trap in moisture. The whole idea is to get the water to run back outside, not get dammed up under the threshold.
There's was supposed to be a sticker right on the Jamsill and I included the directions in another post from Jamsill stating no caulking between the threshold and the threshold.
Please bring up the web site I posted from Jamsill. It shows the flashing and how and where to caulk.
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Old 11-24-2013, 05:01 PM   #7
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WHICH caulk/adhesive/silicone for installing exterior doors?


That makes sense. I misread the directions on the Jamsill; there is only one bead at the very back on the top of the Jamsill it looks like. Reading goes a long ways eh!

First up: Trimming back my siding to clear the brick mold.

Is there a write-up anywhere to your knowledge that explains how to flash the sides of the opening? I have an idea but nothing specific.

Thank you.
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Old 11-24-2013, 05:41 PM   #8
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WHICH caulk/adhesive/silicone for installing exterior doors?


Now you have me scared.
What siding are you "trimming back"?
What type siding do you have?
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Old 11-24-2013, 05:48 PM   #9
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WHICH caulk/adhesive/silicone for installing exterior doors?


I scare myself too. Vinyl siding.

Brick mold is 74" outside to outside. Vinyl opening is roughly 72".
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Old 11-24-2013, 05:59 PM   #10
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WHICH caulk/adhesive/silicone for installing exterior doors?


The siding comes off, not gets cut back.
If you just cut it back there's no way to wrap the opening, Seal behind the nailing fin, add a Z moulding above the door or add the J moulding correctly.
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Old 11-24-2013, 06:03 PM   #11
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WHICH caulk/adhesive/silicone for installing exterior doors?


I don't have a nailing fin...hmm. I will post a couple pictures of everything when I get home in a little while.
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Old 11-24-2013, 07:02 PM   #12
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WHICH caulk/adhesive/silicone for installing exterior doors?


OK here we go. I could not find Z-molding large enough to wrap over the edge of the brick mold. I do have J-molding though, and grabbed a smaller piece of the Z-molding just in case. My house is not wrapped. I also have a ~2' overhang over this door.

























I watched some videos and read up on installing vinyl. Not sure how to get a short piece between a corner and a J. Angle it?





Right stuff?

Last edited by Dave88LX; 11-24-2013 at 07:05 PM.
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Old 11-24-2013, 07:07 PM   #13
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WHICH caulk/adhesive/silicone for installing exterior doors?


i use mulco flex 9000, in my experience the alex brand of caulking is absolute garbage for exterior uses.. the only time i buy alex calking is dap for interior trim

quad is a really good caulking as well
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Old 11-24-2013, 07:37 PM   #14
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WHICH caulk/adhesive/silicone for installing exterior doors?


Uh oh. Are we going to have a caulk-off?


Wait. Something about that doesn't sound right.
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Old 11-24-2013, 10:30 PM   #15
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WHICH caulk/adhesive/silicone for installing exterior doors?


Quote:
Originally Posted by joecaption View Post
The siding comes off, not gets cut back.
If you just cut it back there's no way to wrap the opening, Seal behind the nailing fin, add a Z moulding above the door or add the J moulding correctly.
I've made a lot of bad decisions in my life. I hope this is not another one.

Why does something tell me the first thing I'm going to do is pop the nails on the outside corner and put a barrier (Tyvek etc.) up.

Need to pull the light off tomorrow in order to get that last piece off.




The sheathing does not come all the way down to the top of the opening. Any good reason why? I assume I'm going to need to do something there.










Oh hell. "Hmmm, while I'm there, that window needs to be replaced." Must. Not. Let. This. Snowball.














Look at the width of the edge piece. What was it, an afterthought?





Something tells me there's some stuff missing. I can't get in over my head with this though.


Last edited by Dave88LX; 11-25-2013 at 08:00 AM.
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