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Old 03-08-2018, 08:52 PM   #5
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Join Date: Mar 2010
Location: Prince Rupert BC Canada
Posts: 2,121
Itís easier to use sheet membrane on drywall than cement board. If you do use cement board and sheet membrane dampen it first so it doesnít dry out your mortar.

Quick and easy IMO would be sheet membrane on the pan with banding around the inside corners (less worry about proper thickness with liquid in a critical area)
Liquid over cement board on the walls (red guard/hydroban etc)
Donít forget to mesh tape your seams
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