An unexpected shower repair came up and it was necessary to have the shower stripped down to the studs, make the plumbing repair and now rebuild.Getting a bit of conflicting information..now after the fact.East wall faces a laundry room South wall is a block exterior wall with 3/4" insulation board and 1-by's on top of that.West wall is a 1/2 wall with treated 2x4's.Using densshield 1/2" 4x8 sheets as the tile backer.Regard was applied to the entire 1/2 wall -- studs and back of the purpleboard. Purpleboard is outside of the shower on the opposite side of the wall.Regard was also applied to the south wall insulation board face and 1-by's about 6' up the wall from the shower panThere is no plastic/vapor barrier between the 3/4" insulation board and the block wall. It is essentially Block, insulation board, 1-by's.I cannot seem to find a straight answer if it is ok to apply redgard to the insulation board and 1-by's, then cover with denshield.The 1/2 wall I don't think is going to be an issue but the studs in that are covered with RG as well.Does this need to be re-done? via /r/DIY https://ift.tt/3mBuozu
