I am having a large deck redone and having tile installed. We had an unexpected rain storm last night and I am concerned. The deck is partially covered with Hardibacker. Because of the rain I went to the Hardibacker site and found more to be concerned with. Please advise.
I found that Hardibacker is not for exterior applications. He did not put down a bed of thinset under the Hardibacker. He did paint the plywood with semi gloss paint. He has installed it over plywood with staples. All of these seem to be wrong from reading on the website. If Hardibacker can be used on the exterior, how long should we wait for it to dry out?
Thanks in advance.
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