Hi.
I am remodeling my bathroom. I am ready to start tiling tub and shower surrounding walls. Yesterday I applied the RedGard Waterproofing membrane over Durock Cement boards. Then I checked the instructions on the premixed stone, porcelain and ceramic tile thin-set mortar which I am going to use to put tiles and found that it says: "Do not use over waterproofing membrane."
I already opened the 3.5-gallons mortar container and used a little of it so I can't return it. Plus I don't know what else I can use instead. I used the same mortar last year for similar project but without RedGard and it worked fine for me.
My question is why I can't use thin-set mortar over RedGard waterproofing membrane?
Thks.
I am remodeling my bathroom. I am ready to start tiling tub and shower surrounding walls. Yesterday I applied the RedGard Waterproofing membrane over Durock Cement boards. Then I checked the instructions on the premixed stone, porcelain and ceramic tile thin-set mortar which I am going to use to put tiles and found that it says: "Do not use over waterproofing membrane."
I already opened the 3.5-gallons mortar container and used a little of it so I can't return it. Plus I don't know what else I can use instead. I used the same mortar last year for similar project but without RedGard and it worked fine for me.
My question is why I can't use thin-set mortar over RedGard waterproofing membrane?
Thks.
