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Drywall finishing (taping the joints)

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Drywall finishing (taping the joints) StarMan 11-03-2007
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Posted by StarMan on November 3, 2007, 7:10 pm
OK, basic dw question here

Taping the joints is simple and basic when it comes to two uncut edges which
are tapered and abutted.

However, in many cases, you have two CUT pieces where full-thickness edges
come together.

What is the best way to deal with these?

Adding tape and mudding over could leave a "bulge" if nothing is done.

Does one take a mallet and "ding in" the edges? Taper them somewhat with a
knife?

Also, any links to sites which tell how to deal with drywall finishing in
this way would be helpful.



Posted by Cshenk on November 3, 2007, 10:57 pm

"StarMan" wrote


> OK, basic dw question here

Actually not so basic.

> Taping the joints is simple and basic when it comes to two uncut edges
> which
> are tapered and abutted.

Yes. Note the taper is very small.

> However, in many cases, you have two CUT pieces where full-thickness edges
> come together.

Knarly. Not fun but not that hard.

> What is the best way to deal with these?

I've done that. Got a power hand sander? We tapered the edges in. You do
not want much, just enough to barely go through the paper and to the next
level a tiney bit.

> Adding tape and mudding over could leave a "bulge" if nothing is done.

It will.

I do not know if my method is 'traditional'. It was something my Mom taught
me when I was much younger. Makes for a nice finished wall.



Posted by StarMan on November 3, 2007, 9:16 pm

>
> I've done that. Got a power hand sander? We tapered the edges in. You
do
> not want much, just enough to barely go through the paper and to the next
> level a tiney bit.

Thanks! That's a good idea. I'd better get a fine belt; dw will get eaten
up in no time with that sander.


> I do not know if my method is 'traditional'. It was something my Mom
taught
> me when I was much younger. Makes for a nice finished wall.

Your mom? Excellent! Usually it's the dad! You have a good mom there.

Anyway, who cares about tradition. I just wanted something to work. Yours
sounds like a good idea.



Posted by Harry K on November 3, 2007, 10:02 pm
>
>
>
>
> > I've done that. Got a power hand sander? We tapered the edges in. You
> do
> > not want much, just enough to barely go through the paper and to the next
> > level a tiney bit.
>
> Thanks! That's a good idea. I'd better get a fine belt; dw will get eaten
> up in no time with that sander.
>
>
>
> > I do not know if my method is 'traditional'. It was something my Mom
> taught
> > me when I was much younger. Makes for a nice finished wall.
>
> Your mom? Excellent! Usually it's the dad! You have a good mom there.
>
> Anyway, who cares about tradition. I just wanted something to work. Yours
> sounds like a good idea.

It will make a big mess for one, and greatly weaken the dw sheet where
you put the fasteners in for two.

Taping a butt joint, which is what you are talking about, is no big
thing. Treat it like a standard joint, be sure to get the tape on
with a very think coat under it, keep the next two coats very thin and
feathered will out. The slight bulge will be unnoticeable unless you
shine a light down the wall. If you ran your seams horizontally (the
professional way) almost all your butt joints will fall above doors
and above/below windows and thus practically invisible even under the
worst conditions.

Harry K


Posted by Cshenk on November 4, 2007, 1:29 am

"Harry K" wrote

>> > not want much, just enough to barely go through the paper and to the
>> > next
>> > level a tiney bit.
>>
>> Thanks! That's a good idea. I'd better get a fine belt; dw will get
>> eaten
>> up in no time with that sander.
>> > I do not know if my method is 'traditional'. It was something my Mom
>> taught
>> > me when I was much younger. Makes for a nice finished wall.
>>
>> Your mom? Excellent! Usually it's the dad! You have a good mom there.
>>
>> Anyway, who cares about tradition. I just wanted something to work.
>> Yours
>> sounds like a good idea.
>
> It will make a big mess for one, and greatly weaken the dw sheet where
> you put the fasteners in for two.

It does not make a mess. You seal it later. I'll add unless he seam is
along a beam, you do not fasten it there. Unlikely he landed right on a
beam there.

> with a very think coat under it, keep the next two coats very thin and
> feathered will out. The slight bulge will be unnoticeable unless you
> shine a light down the wall. If you ran your seams horizontally (the
> professional way) almost all your butt joints will fall above doors
> and above/below windows and thus practically invisible even under the
> worst conditions.

Invisible both ways but you do not have to do horizontal (harder unless you
have a team of people), just do it carefully and right if vertical seams.
Most of the houses I see with the visible seams, are horizontal ones.



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