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Xiggy
 
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Default Shower Remodel Question

Hello,

I'm completely remodeling our master bath, and I have a quick question.
In the shower, I'm putting up all new Durock concrete board and using
self-adhesive fiberglass tape on the flat joints. My question is, how
do I tape the inside corners? Can I use regular joint tape, or do I
need to continue with the fiberglass tape? The paper tape is scored
down the center and would be much easier to work with. Will it matter
much since tile will be going up anyway?

Thanks!
Xig
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RicodJour
 
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Default Shower Remodel Question

Xiggy wrote:

I'm completely remodeling our master bath, and I have a quick question.
In the shower, I'm putting up all new Durock concrete board and using
self-adhesive fiberglass tape on the flat joints. My question is, how
do I tape the inside corners? Can I use regular joint tape, or do I
need to continue with the fiberglass tape? The paper tape is scored
down the center and would be much easier to work with. Will it matter
much since tile will be going up anyway?


Yes, it will matter. Continue with the fiberglass mesh joint tape.

R

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thetiler
 
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Default Shower Remodel Question

Use the fiberglass tape and _don't_ use
'drywall compound' to go over the tape, use
polymer modified thinset, which will make
the entire wall waterproof. Often people
will wrongly use 'drywall compound' to tape
joints in showers, then when water penetrates
and gets the wallboard moist, the compound
disintegrates and releases the tiles.

thetiler

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Paul Franklin
 
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Default Shower Remodel Question

On Sun, 22 Jan 2006 21:33:23 -0500, Xiggy
wrote:

Hello,

I'm completely remodeling our master bath, and I have a quick question.
In the shower, I'm putting up all new Durock concrete board and using
self-adhesive fiberglass tape on the flat joints. My question is, how
do I tape the inside corners? Can I use regular joint tape, or do I
need to continue with the fiberglass tape? The paper tape is scored
down the center and would be much easier to work with. Will it matter
much since tile will be going up anyway?

Thanks!
Xig


I don't tape the corners. When you tile the walls, you should not
grout the corner joint, but should use flexible sealant (like silicone
caulk) in the corner. Doing it that way allows for the slight movement
between the walls.

The tape on the flat joints is to help prevent tiles from cracking
over the seam; this can't happen in the corner if you use flexible
sealant. BTW, you should bed the tape over the flat joints in
thinset.

And it's probably too late, but you should (have) put a waterproof
lining (such as building felt) behind the backer board, starting at
the bottom and with the upper pieces lapped over the lower.

HTH,

Paul

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