Harridan
Aug 15, 2014, 08:39 PM
I am planning to use 1/4" HardieBacker with 13"x13" porcelain tiles on the plywood sub-floor of a bathroom and a contiguous toilet on the 2nd floor of a house. This floor is right next to bathtub and shower, so the environment will regularly be highly humid. Plus toilets are known to overflow once in awhile.
Therefore I am concerned about moisture potentially penetrating to the wood and to the ceiling below.
My question is: do I set the HardieBacker directly to the plywood sub-floor or do I need to use some additional form of moisture barrier? If so, which?
Thank you.
Therefore I am concerned about moisture potentially penetrating to the wood and to the ceiling below.
My question is: do I set the HardieBacker directly to the plywood sub-floor or do I need to use some additional form of moisture barrier? If so, which?
Thank you.