drywall behind tub surround

Reply

  #1  
Old 09-21-17, 08:59 AM
J
Member
Thread Starter
Join Date: Sep 2017
Location: Canada
Posts: 3
Received 0 Votes on 0 Posts
drywall behind tub surround

hi all.
I installed a new bathtub and plan to use a glue up tub surround.
I have green board to install around the tub for backing.

question is should I mud and tape it or use something else to seal the screw heads and seams?

the glue pl700 says it sticks to green board. it doesn't say anything about drywall mud or paint.

thanks.
Jay.
 
  #2  
Old 09-21-17, 09:03 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 24,728
Received 787 Votes on 724 Posts
You don't need to do anything since it won't be visible. So, not tape and no mud.
 
  #3  
Old 09-21-17, 09:22 AM
J
Member
Thread Starter
Join Date: Sep 2017
Location: Canada
Posts: 3
Received 0 Votes on 0 Posts
thank you.
do you think its worth using silicone or even the tub surround glue over the seams?
not that i plan on water back there.
 
  #4  
Old 09-21-17, 11:02 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 47,942
Received 383 Votes on 339 Posts
The only place I'd caulk [other than adhesive] would be around the perimeter of the surround - so water doesn't get behind it.
 
  #5  
Old 09-21-17, 11:31 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 26,823
Received 854 Votes on 782 Posts
You generally always tape the drywall for a fire barrier (and air barrier on exterior walls), but if it will not be seen there is no need to finish or sand it, you don't need to worry about the glue over the joints.
 
  #6  
Old 09-21-17, 12:55 PM
J
Member
Thread Starter
Join Date: Sep 2017
Location: Canada
Posts: 3
Received 0 Votes on 0 Posts
its an inside wall. my only issue with mud / tape is if the pl700 will stick to it. cant find a whole lot of info on the product. I was sort of thinking pl700 or silicone along the seams if any moisture ever gets in there. not like it would hold up in a fire tho
 
  #7  
Old 09-21-17, 06:19 PM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 24,728
Received 787 Votes on 724 Posts
If you tape & mud just keep your mud strip narrow. It won't matter if there is a 3-4" wide strip with no adhesive.

From what I've seen most adhesives stick to mud quite well. The problem is mud is very weak and the adhesive will take the top surface of mud with it so sticking to the mud isn't much benefit. I just apply the glue and don't pay much attention to the mud lines.
 
 

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