I am in the middle of a bathroom remodeling project and I have a
question regarding the taping & finishing of hardy backer board for my
shower. After I put the hardy backer board up I applied fiberglass
tape and regular joint compound to the seams. After doing this I read
somewhere that you are supposed to use the same material on the seams
that you are planning to use for your tiling (i.e. thinset with latex
additive). Will there be a problem if I leave the regular joint
compound on the seams and just apply the tile thinset (as I am tiling)
directly over the joint compound? Or, should I sand down the regular
joint compound and apply the thinset to the joints?
Yes. If the drywall compound gets wet it will soften. Don't feel too
bad though. I hired a drywall contractor who advertises himself as a
He used paper tape and dry wall mud on the Durock he installed around
tubs, and showers. He screamed bloody murder when he discovered that
the only way to get paid was to take it out and re-do it correctly.
Or, should I sand down the regular
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