Latest Discussions : Flooring & Stairs


06:02AM | 09/02/03
Member Since: 09/01/03
2 lifetime posts
Do you always have to use thin set to mount a backer board to the floor? What will happen if you dont?

Graham Flooring

04:32PM | 09/02/03
The answer to your question is yes. You always have to put a bed of thinset under the underlayment. The reason why, your subfloor is not going to be perfectly flat (like most backerboards) and the two together will cause a gap allowing some movement underneath when you walk on it. This movement will cause grout cracking and tile pops.
Hope I was of some help.

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