Hydroban waterproofing with vinyl pan
On my tub to shower conversation I'm having a pro do the plumbing changes. During our discussions he said he could do a traditional vinyl with a deck mud pan and just let me deal with the tile installation. I figure if it do that I should use normal Hardi-backer on the walls and then a paint on waterproofing like Hydroban.
Should I also go over the pan surface like it's a surface membrane system and consider the underlying vinyl pan as backup insurance or just paint the Hardi-backer down to the pan and depend on the normal vinyl pan?
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Use durock not hardibacker. And yes you can Hydro ban the walls. Second, do not apply hydroban to the pan if it is a traditional pan liner. If you want to use a sealed system, have him float the pan for you with a flofx flange and then paint on the Hydro Ban.