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Can you lay 1/2″ durock directly on 3/4″ sob or do you need to put down plywood. I’m wondering if the sob will be o. with the layer of thin set beneath the durock.
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Can you lay 1/2" durock directly on 3/4" sob or do you need to put down plywood. I'm wondering if the sob will be o. with the layer of thin set beneath the durock.