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Old 11-05-2015, 10:51 PM   #1
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Best way to build up on top of cement backer?


Hi.. I have a room I need to tile that already has cement backer board down but there is a 3/4 gap between the top of the cement board and the finished height of the hardwood floor in the adjacent room. I don't know what tile I will be going with yet... Wondering how I can build up under the tile regardless of which I choose to have the tile height match the hardwood?

The floor is 2x10 16" on center 12ft span. Don't know grade or species. With 3/4 t&g ply sub floor and hardie backer 500 on top of that..
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Old 11-05-2015, 11:37 PM   #2
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Ryan,

In this case your Hardie at that level was a mistake, but oh well......too late now. Is the Hardie set into thinset mortar?

If the diff is ", you wanna install Ditra XL and then standard quality/thickness tiles. You should end up very close.

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Old 11-06-2015, 07:24 AM   #3
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Yeah it's in thinset.. Long story in the height difference but none of that matters now

Dang that ditra is expensive $300.. This might be stupid but could I put 1/4" hardie on top of the existing board to build it up instread? Would be half the cost..

I knew you would be able to help me out..

Thanks

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Old 11-06-2015, 02:41 PM   #4
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People have done double CBU sometimes. Thinset then nail away.

$300? How much you need? It's worth 3x more than Hardie, am I close?

Jaz
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Old 11-06-2015, 04:47 PM   #5
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Pretty much right on... I need about 150 sqft..

I will pick out the tile then figure out what I have the stomach for...

Thanks for setting me straight on my options..
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Old 11-10-2015, 04:02 PM   #6
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how much cement ,sand and stone including the concrete floor do i need for a three by six extension to my house
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Old 11-10-2015, 04:08 PM   #7
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I plan extend my house with two extra rooms the structure's size is three by six.How cement,sand and stone do i need for such a structure including concrete floor.
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