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Old 06-11-2021, 09:49 AM   #1
Mini-Skoolie
 
Join Date: Mar 2016
Location: Somewhere in the US
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Year: 2004
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Chassis: TC2000
Engine: Cummins 5.9
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Shower wall backer recommendations

Hey guys

Looking for recommendations for backer board in a shower. I used Kerdi board in my build behind ceramic tile, but I'm doing a build for a client and she has a limited budget.

Cement board seems risky with all the movement in the bus.

I also don't know yet whether she is going to go with ceramic or vinyl/pvc sheets or something else.

What have you used that works well?

Thanks!

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Old 06-11-2021, 10:19 AM   #2
Bus Nut
 
Join Date: Oct 2020
Location: Near Flagstaff AZ
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We like to use James Hardie's HardieBacker with fiber tape on the seams and Red Guard to seal those seams, and we've never had an issue. HardieBacker is a cement board, but it's not as heavy or difficult to work with as the old stuff I started with (in homes) which was cement and styrofoam with a layer of mesh on both sides. HardieBacker is easier to work with and the Red Guard/fiber tape seems to seal really well.
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Old 06-11-2021, 10:34 AM   #3
Bus Nut
 
Join Date: Jul 2017
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On a limited budget, FRP panels. This is the route we are going this weekend and from what I've seen, should work out nicely. Waterproof.. relatively easy to seal up and work with.
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Old 06-11-2021, 11:48 AM   #4
Bus Crazy
 
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I used the foamcore backer. Hydro-Blok. Not cheap. If I were to do FRP I’d use plywood probably
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Old 06-11-2021, 10:32 PM   #5
Bus Nut
 
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Join Date: Aug 2019
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I've watched this guy in preparation for how I might do my shower area.

In this particular video, he's linking to what he considers the best video on using RedGard.

It pretty well speaks to what Ross was suggesting.



Hope it helps.
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Old 06-11-2021, 10:37 PM   #6
Bus Nut
 
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Quote:
Originally Posted by Simplicity View Post
Hope it helps.
It definitely helps with my spelling! I just bought another gallon pail of it about 2 weeks ago and didn't remember it's spelled RedGard and not Red Guard. It's about $50/gallon, but that goes a long way and I've not found another product which works as well. Semco makes something I see advertised often, but I've got no reason to switch.
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Old 06-13-2021, 10:39 AM   #7
Mini-Skoolie
 
Join Date: Mar 2016
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Year: 2004
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Chassis: TC2000
Engine: Cummins 5.9
Rated Cap: 42
Thanks guys. I really appreciate the input
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