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Unread 02-01-2020, 10:17 AM   #1
ramtaajogi
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Self leveling question

Hello. First would like to thank this community for all their knowledge and for sharing it.

I am installing a Kerdi shower kit and see that I need to level the floor about 1/2 inch. I installed a new OSB floor already, but after reading some threads it seems that self leveler over OSB is not the optimum way to go. I have purchased Mapai Self Leveler Plus and its primer, but hesitate to use the product over OSB as the instructions do not permit it. My plan was to install hardibacker (I have a few sheets in the garage) over the OSB and pour the Mapai Self-Leveler Plus over it.

Does this plan make sense?


OSB Floor: Georgia Pacific DryGuard
Thinset : Schluter All-Set
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Last edited by ramtaajogi; 02-01-2020 at 10:22 AM.
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Unread 02-09-2020, 01:37 PM   #2
Tiger Mountain Tile Inc
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Hi Jayson, it doesn't look like your post got any comments.

You can use self leveler over OSB if you install diamond metal lath first. At least, I think you can but it's best to read the manufacturer's instructions. You'll probably be at least 1/4 inch thick with the pour though.

There are some newer products on the market that will allow for no lath. Ardex Liquid Backer Board is one and Custom Level Tech WSF is another.

I've used LBB before and think it's a nice product. It has a 1/8 inch minimum thickness and that might be what you want to use for your project.
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Unread 02-09-2020, 05:48 PM   #3
Lazarus
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First, you need a waterproof barrier over the wood. Trash bags if nothing else. THEN you need a wire mesh stapled or nailed down. HOW you can pull a mud bed.
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Unread 02-09-2020, 07:06 PM   #4
cx
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I think the OP was asking about SLC, Laz, not mud beds.

And he's not been back since he posted. Maybe he just gives up really quickly.
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