Finishing bath and shower modules

 
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Old 09-09-2011, 04:08 PM   #1
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Finishing bath and shower modules


When finishing one piece bath and or shower units there are two schools of thought.
#1-Run the rock only up to the edge of the mounting flange and prefill with setting type compound (hot mudd) then flat tape and finish with "green lid".

#2-Fur out the wall so drywall factory tapered edge sets squarely over the flange and screw heads within a maxium 1/4" of the unit and fill with 100% silicone mold resistant caulk.

Which method is most common in your neck of the woods? And why would you favor one over the other?

In So.Cal #1 is the most common or in other words why do we do method #1 when the factory recommends #2


Last edited by mqr78p; 09-09-2011 at 04:15 PM.
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Old 09-09-2011, 04:35 PM   #2
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Re: Finishing bath and shower modules


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Originally Posted by mqr78p View Post
When finishing one piece bath and or shower units there are two schools of thought.
#1-Run the rock only up to the edge of the mounting flange and prefill with setting type compound (hot mudd) then flat tape and finish with "green lid".

#2-Fur out the wall so drywall factory tapered edge sets squarely over the flange and screw heads within a maxium 1/4" of the unit and fill with 100% silicone mold resistant caulk.

Which method is most common in your neck of the woods? And why would you favor one over the other?

In So.Cal #1 is the most common or in other words why do we do method #1 when the factory recommends #2
You are correct but, the silicon I would prefer paintable silicon which is not 100 percent silicon. The most common here is cutting the rock back to butt up against the shower flange. You use to see contractors shimming or furring out the walls but they got to lazy and too cheap to do it any more, besides if there is a prehung door on where the rock is shimmed out it messes with their jamb thickness.
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Old 09-09-2011, 05:08 PM   #3
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Re: Finishing bath and shower modules


Ok I will chime in here, method #1 is most prevalent here in my area and is the method I prefer. Why? I have seen method #2 and never thought the board appeared to be sitting "flat" I always prefill with Durabond 90 (and here's the part that will get me in trouble lol) lay on mesh tape into the still wet durabond, then skim coat with another layer of DB 90 .then I finish as usual with either AP or plus3.
Now, to the naysayers, I have never had a call back for my tub/showers.
Also, just so I am clear where I stand, besides for repairs that is the only place I use mesh and of course you only use hot mud when using mesh.
Mesh and paper both have their place in this trade IMO
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Old 09-09-2011, 05:12 PM   #4
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Re: Finishing bath and shower modules


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Ok I will chime in here, method #1 is most prevalent here in my area and is the method I prefer. Why? I have seen method #2 and never thought the board appeared to be sitting "flat" I always prefill with Durabond 90 (and here's the part that will get me in trouble lol) lay on mesh tape into the still wet durabond, then skim coat with another layer of DB 90 .then I finish as usual with either AP or plus3.
Now, to the naysayers, I have never had a call back for my tub/showers.
Also, just so I am clear where I stand, besides for repairs that is the only place I use mesh and of course you only use hot mud when using mesh.
Mesh and paper both have their place in this trade IMO
At the risk of sounding like myself,,,,, why would mesh be any better here than paper???
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Old 09-09-2011, 05:14 PM   #5
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Re: Finishing bath and shower modules


Ok, to be blunt, and not meant to offend anyone, filling the recess with any type of mud is completely WRONG! What will happen is that WHEN the caulking around the tub unit fails, which it will, water will wick up in the wall.

Method number 2 is the correct method.

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Old 09-09-2011, 05:21 PM   #6
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Re: Finishing bath and shower modules


A shim job do work well,,but sometimes the rock is even -level with the top of shower-tubs [the cheap ones] sometimes even overlap .

Don't stand there and look those shower-tubs too long.
Or you will scratch It..
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Old 09-09-2011, 05:29 PM   #7
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Re: Finishing bath and shower modules


heres a cool little tip on some of them tubs.

If the tub has a short wall at the end of it, ya know, where it takes a 4" rip and two beads.

Cut the rip 41/4", eyeball the rip on the end of the wall, so that the edge of it is even with the flange of the IMPROPERLY installed tub. Then put the 1 1/2 rip against the tub, draw it tight with nails. Makes a perfect 90 degree, where otherwise you get that UGLY off angle twist.
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Old 09-09-2011, 05:48 PM   #8
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Re: Finishing bath and shower modules


What silver said.
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Old 09-09-2011, 06:00 PM   #9
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Re: Finishing bath and shower modules


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At the risk of sounding like myself,,,,, why would mesh be any better here than paper???
I feel mesh and hot mud are 10 times stronger than paper, and I guess because I was taught that way, been doing it for years.
I can tell from reading your posts over the last several months you, Capt, are way more experienced than I am and your one of many that I highly respect on DWT.
So I will leave my response at that and not run the risk of sounding like a idiot lol
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Old 09-09-2011, 06:17 PM   #10
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Re: Finishing bath and shower modules


Quote:
Originally Posted by gotmud View Post
I feel mesh and hot mud are 10 times stronger than paper, and I guess because I was taught that way, been doing it for years.
I can tell from reading your posts over the last several months you, Capt, are way more experienced than I am and your one of many that I highly respect on DWT.
So I will leave my response at that and not run the risk of sounding like a idiot lol
OR ... Is hot-mud and paper tape 10 times stronger than meshLOL!!
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Old 09-09-2011, 06:28 PM   #11
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Re: Finishing bath and shower modules


We mostly see butting up to the flange here, and most guys fill with hot mud. I've started using Vario instead, it has more water resistant properties than standard set-muds. I then go over the fill with Fiba-fuse (paper + water = mold fellas) If no Fiba-fuse, then glass tape (again, paper + water = mold fellas). I've been looking around for this 90 minute M2Tech mud, but haven't seen any around although I know it exists.

I've seen a$$piles of failure at tubs, and ALL of it was paper tape. Without exception.
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Old 09-09-2011, 07:06 PM   #12
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Re: Finishing bath and shower modules


Quote:
Originally Posted by gotmud View Post
I feel mesh and hot mud are 10 times stronger than paper, and I guess because I was taught that way, been doing it for years.
I can tell from reading your posts over the last several months you, Capt, are way more experienced than I am and your one of many that I highly respect on DWT.
So I will leave my response at that and not run the risk of sounding like a idiot lol
Have ya give any thought to the fact I might just be old and senile???????

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Old 09-09-2011, 07:25 PM   #13
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Re: Finishing bath and shower modules


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Originally Posted by SlimPickins View Post
We mostly see butting up to the flange here, and most guys fill with hot mud. I've started using Vario instead, it has more water resistant properties than standard set-muds. I then go over the fill with Fiba-fuse (paper + water = mold fellas) If no Fiba-fuse, then glass tape (again, paper + water = mold fellas). I've been looking around for this 90 minute M2Tech mud, but haven't seen any around although I know it exists.

I've seen a$$piles of failure at tubs, and ALL of it was paper tape. Without exception.
Your right slim ... Paper will not hold up over time to moisture /steam weak exhaust fan /no caulking around tub /regular board instead of water-proof/two coats of flat with no prime/but I've never had a call back on a tub,,,but just because they don't complain doesn't mean there's no complaint. I have done many bath renos ,and the paper tape around showers tear away clean .. shake the dried mud off ,,and can reuse the tape

Never tried your method ,,but I will In the future..
but IMO ,,ya can't beat water. water will find It's way ,and when It does no material Is safe ... maintenance really helps around showers [ H/O]
I cut away caulk around my 2 shower tubs here [home] and re-caulk once a year .. The kids shower maybe twice a year.. [ when those 2 grow up and buy there first new homes I'm gonna walk in the front door with a bucket of sh!T IN BOTH HANDS and start slinging .AND I will have 2 boxes of thumb tacs in my pocket .
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Old 09-09-2011, 07:27 PM   #14
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Re: Finishing bath and shower modules


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Have ya give any thought to the fact I might just be old and senile???????

Yes we have
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Old 09-09-2011, 07:35 PM   #15
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Re: Finishing bath and shower modules


Used to do #1 until water issues arose.

Then we used to go over the flange and finish with a paper "L" until some stress cracks started to appear from the board bending over the flange and screw which was not set properly.

Now the contractor shims and trims for a nicer look.

I don't like #1 or #2 but if that's what they want !
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Old 09-09-2011, 08:30 PM   #16
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Re: Finishing bath and shower modules


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OR ... Is hot-mud and paper tape 10 times stronger than meshLOL!!
lol don't wanna go there moore ,we dont need another paper vs mesh thread
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Old 09-09-2011, 08:49 PM   #17
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Re: Finishing bath and shower modules


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Have ya give any thought to the fact I might just be old and senile???????
nope not at all
older and wiser

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Old 09-09-2011, 09:02 PM   #18
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Re: Finishing bath and shower modules


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older and wiser

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Old 09-09-2011, 09:13 PM   #19
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Re: Finishing bath and shower modules


around here they just hang the rock right over the flange no shim. just bend it over. i bet they dont even caulk the edge. just paint it and your good.
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Old 09-09-2011, 10:50 PM   #20
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Re: Finishing bath and shower modules


you can use J bead around edges of rock instead of taping, also turning piece around (brownside) with recessed board around flange it will darn near lay flat
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