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Question:

Fiber cement board (hardibacker) question?

Hi everybody! I just installed hardibacker boards in my bathroom. But I had to remove 1 pc 'coz I made a mistake. Can I still use it again? I screwed it every 8 inches around the edges and along every stud. Can I just cover the holes with thinset? Thanks!

Answer:

I would roll red guard over all the sheets it is an elastomeric coating and it is a moisture barrier and tile over that.Red guard is available at tile showrooms and home improvement places and should be used anyways and will fill in the holes in that sheet and seal all the seams.
May 11, 2017
I would say not really - since every screw hole is now a weak point and they form a really good fracture line. In the case where the material willhave some structural support along the screw hole line it's probably fine.
May 11, 2017
just fill in the holes, as you tileing anyways, the cement will cover, any cracks up
May 11, 2017
Yes, as long as you adequately fill the holes, you're good to go
May 11, 2017
Yes --- Will look great from my house
May 11, 2017

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