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sealing basement door threshold?

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Mark

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May 31, 2002, 10:25:07 PM5/31/02
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I just installed an aluminum threshold plate under my exterior basement
door. What should I use to seal between the aluminum and the concrete?
Should I use ordinary silicone sealant, or is there some magical goop that's
better in this application?

Also, what is the recommended waterproofing treatment for the freshly-cut
door bottom? It will be in contact with a vinyl sealing strip.

Thanks
-Mark


Robert Allison

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Jun 1, 2002, 12:47:13 AM6/1/02
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You SHOULD have put sealant under the threshold as you were
installing it. After the fact, I would use NP1 or PL2000 (yes, that
is 2000, not 200). As for the bottom of the door, paint. This will
wear off from the abrasion with the vinyl strip on the threshold, so
you will need to touch up regularly.

--
Robert Allison
Georgetown, TX

Lazenby

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Jun 1, 2002, 5:54:45 AM6/1/02
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Of course, it should be a relatively simple matter to take the threshold back up and properly bed it.  You might also use a sealer/preservative on the door slab's bottom edge before painting.
 
If your threshold sill has a vinyl strip to press against the bottom of the door, you might apply sealer to the door and then paint.  If not, you might consider a door bottom weather strip or special strip to engage an interlock on the sill . . . or, in any case, a drip strip to divert water from the face of the door over and beyond the sill.  Similarly, paint the door, but before adding the strip, if any.
 

BP

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Jun 1, 2002, 6:25:10 AM6/1/02
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Chalking the threshold edge after installation is rarely effective. The
threshold should be set into the caulking. 100% silicone will work OK on
clean, well cured concrete, but butyl rubber is better. Caution with butyl
rubber: it never really dries as most people like to think of it. It always
stays pliable and sticky. So don't use it in an exposed application where
you could step on it. A high quality alkyd primer/sealer is best for a wet
location. If never exposed to sunlight or weather it would not need to be
painted and will wear longer than paint.

"Mark" <nos...@thanksanyway.org> wrote in message
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Mark

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Jun 1, 2002, 12:58:00 PM6/1/02
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> "Lazenby" <aa.la...@prodigy.net> wrote:
> If your threshold sill has a vinyl strip to press against the bottom of
the door,
> you might apply sealer to the door and then paint. If not, you might
consider
> a door bottom weather strip or special strip to engage an interlock on the
> sill . . . or, in any case, a drip strip to divert water from the face of
the door
> over and beyond > the sill. Similarly, paint the door, but before adding
the
> strip, if any.

How about treating the door bottom with a primer/sealer, then capping the
bottom with an aluminum or nylon strip to take the wear from contact with
the seal?

Robert Allison

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Jun 1, 2002, 7:49:58 PM6/1/02
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Overkill in my opinion. The primer/sealer will be fine. When I say
regularly, I mean every time you paint the door.

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