backerboard wall seams?

Old 04-05-03, 08:00 AM
Visiting Guest
Posts: n/a
backerboard wall seams?


I have all the backerboard up around my tub. I've been trying to figure out what I need to do with the seams (between backerboards, between backerboard and drywall).

I've seen a lot of different suggestions. What's the best solution?


Old 04-05-03, 06:16 PM
Doug Aleshire's Avatar
Join Date: Feb 2002
Location: United States
Posts: 4,455
Upvotes: 0
Received 0 Upvotes on 0 Posts

I would apply tape and joint compound. Since you are going to tile, do a good job where the tile stops and drywall begins so your painting will look awesome. NOTE: I assume that the backboard is sitting on top of the tub nailing flange? You don't want this over it and "bulging" out or your tiling job will look terrible!

The joints under the tile just need to be "fire-taped", one coat basically - nothing fancy that requires a 3 coat process- unneccessary. Just make do a one swipe with trowel so it's fairly smooth - no need to sand it.

I assume this is what you are asking?
Old 04-07-03, 09:55 AM
Visiting Guest
Posts: n/a
Tape and thin-set mortar between cement backerboard joints, tape and joint compound between drywall/backerboard seams.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: