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Dry walling a cathedral ceiling.

mark_k

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Jun 4, 2014
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Hello, I am trying to drywall the ceiling of my sister's bonus room. It is a cathedral ceiling. I have the flat part that runs the length of the room, now I'm trying to do the angles section between the wall and the ceiling. How do I install this piece? I tried trust putting a piece up and it doesn't meet up right on the top. Thank you.
 
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Radix2

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May 28, 2014
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the thumb!, MI
what do you mean by it doesn't meet up right ?

take two small pieces of drywall and nail a couple 2x4s at the right angle and use that to figure out the spacing rather than lifting any heavy stuff.

Use setting type mud and build out the corner to approx shape (same for all the gaps and goofs) before you tape it.
 

Bluedodge

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Jun 22, 2015
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There are several members on GJ who have hung drywall professionally for years (myself included).

As professionals, we will need some pictures of your sister to better assist in determining which course of action shall be needed.
 
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mark_k

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Jun 4, 2014
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It's hard to tell in the picture, but it a flat to about a 45 deg wall.
 

Zeke

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Long Beach CA, the sewer by the sea.
That will mud in with some fast set. Do a couple coats rather than one thick one. There is a pretty competent plasterer on the net up in the Bay Area (CA) that uses the same stuff and will build up over a 1/2 inch. He doesn't have any problems.
 

er3456df

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Dec 1, 2009
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I think the problem is that you slid the ceiling piece all the way into the corner. If you want the drywalls to meet evenly, they each have to share the space- each one should be spaced away from the corner by ~1/4" or something.
 
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mark_k

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Ok, can I just drop the side panel a little, then do some quick set in the joint then tape it off and mud like usual?
 

Bluedodge

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For inside corners, many people will use metal tape rather than plain mesh tape:

634751_front500.jpg


Put a thin coat of mud in the corner, imbed the tape (metal side against the drywall), then skim coat the hole shebang. It covers voids better than anything else.
 

wbrian63

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Mar 31, 2010
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Houston, TX
If one of the sides of the cathedral is the under side of the roof, you'll need something that will flex without cracking in the corner. If the cathedral is a "structure" that projects up into the attic space with no connectivity to the roof, this is less of an issue.

The den in my home has a 9-1/2' ceiling that intersects with the roof along the outside edge of the house, angling down to where it meets the outside wall at the typical 8' height. The seam where the angle met the flat was forever cracking. I'd spackle it with flexible caulk and repaint, and it would crack again.

I solved the problem when I remodeled by using some flexible corner tape - I think it was the no-coat brand. http://www.no-coat.com/

The concept of this stuff is that you mud an outside corner, then apply the tape into the mud with little or no extra mudding required, different than what's required when you use metal corner bead.

The tape is regular drywall tape that has a rigid plastic spine with a molded-in seam. I installed it along the seam on the ceiling backwards - with the side that would ordinarily face towards the wall facing out to the room. The seam creates a nice straight line, and I made sure I didn't put any mud into that area - just paint. 14+ years later, no cracks.

The way your sheets meet up, you've got a lot of mudding to do - I'd try sliding the already mounted sheet down to where the new sheet meets the old sheet at the outside edge.
 

Gerald O

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NC
Sheesh! Just hot mud to fill the gap. That will easily fill in a single pass. Then tape over it and mud as normal. If the resulting mudded gap area is more than about a half inch then you might want to double tape to overlap over a wider area.
 
Last edited:

rsnip988

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Apr 2, 2015
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Elon NC
There are several members on GJ who have hung drywall professionally for years (myself included).

As professionals, we will need some pictures of your sister to better assist in determining which course of action shall be needed.

:lol_hitti awesome answer!
 

pcmeiners

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In the only town in Pennsylvania, Bloomsburg.
"I solved the problem when I remodeled by using some flexible corner tape - I think it was the no-coat brand. http://www.no-coat.com/"

This sounds like a good idea. I can do this manually but bit of work to make the seam come out straight, this looks like it will make it easy.
 
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