Bath Tub Installation - Plumbing - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 03-11-2013, 06:27 PM   #1
Newbie
 
Join Date: Mar 2013
Posts: 14
Rewards Points: 10
Default

bath tub installation


New to this forum, and it seems very informative. I searched the internet as well as this forum prior to posting, so I hope im not wasting anyones time.

I am going to install a new bathtub and tile the surround next week and was looking for a little guidance. I decided to go with a steel tub instead of fiberglass or cast iron, and I noticed most of the tubs have the self leveling bottom. the instructions for a tub i did before said not to use mortar or a pad because the bottom of the tub is self leveling, so i didn't. needless to say the tub creaks like crazy now. im not sure if you should use mortar with it, or if it was because the floor i put it on didn't have any plywood down for a smooth surface, as it looked like the picture i attached. i plan on installing a plywood flooring on those 2x4's with screws and construction adhesive, sound good?

another question i had is about the lip on the bathtub. do i cover the lip of the tub that gets nailed to the studs with backer board? im sure you do, but wont the backer board bow out a little bit where the lip is? not sure how that would affect the tiles.

my final question (and thank you for bearing with me this far) is, since i am installing the tub in an enclosed area, should i frame in the mortar bed? i have no way of removing the framing once the mortar dries, so i was planning on putting the plastic sheeting down on the plywood without framing and then setting the tub into it. i think if i pour the mortar correctly i shouldn't have to worry about an excess of mortar trying to pour out from below the tub. Thanks again for your time, i appreciate it.
Attached Thumbnails
bath tub installation-dscn4489.jpg  

Advertisement

Jonscheets is offline   Reply With Quote
Old 03-11-2013, 07:13 PM   #2
Plumber/Contractor
 
TheEplumber's Avatar
 
Join Date: Jul 2010
Location: North Idaho
Posts: 7,272
Rewards Points: 2,620
Default

bath tub installation


I always put mortar under tubs or showers. Lay plastic on your sub floor. I place a few strategically placed "cow pies" of mortar down- thin enough to spread when the tub is placed, but thick enough not to slump away- no form needed
As for the lip- its trial and error- steel tub may not be an issue but you may need to furr the stud faces.
This thread might help

Is mortar under bathtub necessary?

Advertisement

__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
TheEplumber is offline   Reply With Quote
Old 03-11-2013, 07:16 PM   #3
Member
 
Join Date: Mar 2013
Posts: 37
Rewards Points: 25
Default

bath tub installation


Your tub has a top flange, correct? You need to fur out the studs so that the cement board fits over that flange without contorting it.
Keep the cement board about 3/8" off the edge of the tub. Your tile will then start about 1/4" from the edge of the tub, covering the gap between the edge of the tub and concrete board. Caulk that gap and yours good to go.
Kansas Girl is offline   Reply With Quote
Old 03-11-2013, 08:25 PM   #4
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,601
Rewards Points: 1,746
Default

bath tub installation


The tub replacement needs to be mounted to the wall studs with galvanized roofing nails at top of the flat flange. Make sure you read the install instructions. Also it never hurts to level the floor with plywood as required.
Ghostmaker is offline   Reply With Quote
Old 03-11-2013, 09:01 PM   #5
DIY staff

 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 22,333
Rewards Points: 3,304
Default

bath tub installation


Durrock/backer board----

Install the Durrock so that it stops at the flange,resting on the roofing nails that are holding the tub to the studs----fill the resulting void with thinset before you apply your waterproofing---

Or pack with thinset with as you tile if you are not going to waterproof the board.

Furring out the walls so the board overlaps the flange does not work well---you will have a problem where the backer board meets the drywall if you try that----
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is online now   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
jaydevries (03-11-2013)
Old 03-11-2013, 09:30 PM   #6
Newbie
 
Join Date: Mar 2013
Posts: 14
Rewards Points: 10
Default

bath tub installation


im guessing the gap created where the tub flange is nailed in will only be about 1/8' off of the stud, right? ive only seen fur strips as small as 1"x2" so there will be a 7/8" gap between the backer board and the tub flange? does that sound right? thanks again for the responses, you guys help is greatly appreciated
Jonscheets is offline   Reply With Quote
Old 03-11-2013, 10:11 PM   #7
Plumber/Contractor
 
TheEplumber's Avatar
 
Join Date: Jul 2010
Location: North Idaho
Posts: 7,272
Rewards Points: 2,620
Default

bath tub installation


Quote:
Originally Posted by Jonscheets View Post
im guessing the gap created where the tub flange is nailed in will only be about 1/8' off of the stud, right? ive only seen fur strips as small as 1"x2" so there will be a 7/8" gap between the backer board and the tub flange? does that sound right? thanks again for the responses, you guys help is greatly appreciated
You can make fur strips out of plywood or paneling. But listen to oh'mike's advice. He's done this before....
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
TheEplumber is offline   Reply With Quote
Old 03-11-2013, 10:27 PM   #8
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,789
Rewards Points: 694
Default

bath tub installation


Is there also going to be a shower? If so that old dry wall needs to go.
joecaption is online now   Reply With Quote
Old 03-11-2013, 10:45 PM   #9
Newbie
 
Join Date: Mar 2013
Posts: 14
Rewards Points: 10
Default

bath tub installation


its our only shower in the master bath, so i was going to tear down the drywall about 4ft above the tub flange and install backer board after i put the tub in. i wasnt too sure if oh'mike knew that, which is why i thought the furring made sense since ill be down to the studs on the walls.

i figure it would make sense if i measure the distance the flange and nail sit out from the stud and subtract that from the 1/2" drywall size that i need to match the backer board up to at the top of the shower wall. im guessing that would be 1/2" drywall minus approx 1/4" flange/nail width = 1/4" backer board to be used with 1/4" furring strips. that should match up to the 1/2" drywall that will be above the backer board, and ill tile just over the line so everything looks smooth. hopefully im not complicating things here. Thanks again
Jonscheets is offline   Reply With Quote
Old 03-11-2013, 10:56 PM   #10
Member
 
Join Date: Jan 2012
Location: ohio
Posts: 1,122
Rewards Points: 552
Default

bath tub installation


um i would not use 1/4 " on walls with no solid backer check cement board manufactures installation instructions. you will have to much deflection in my opinion
__________________
"be careful at listening to just one persons advise" said me
"be careful at listening to just one persons advise" said myself
p.s. not all i say is a fact but not all i say is my opinion.
jaydevries is offline   Reply With Quote
Old 03-12-2013, 09:33 AM   #11
Member
 
Join Date: Jan 2013
Location: Southeastern MA
Posts: 1,450
Rewards Points: 564
Default

bath tub installation


Take the drywall down up to the ceiling. As Jay has stated 1/4 is too thin for walls. Fur out the 1/2" backerboard and drywall so they are level.

Advertisement

djlandkpl is online now   Reply With Quote
Reply

Tags
bath tub bathtub mortar


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bath Faucet Cartridge Installation sobro Plumbing 7 06-14-2012 05:35 PM
Bath vanity installation toobhed Kitchen & Bath Remodeling 2 04-02-2012 02:25 PM
wiring half bath vs full bath hryser Electrical 1 03-08-2011 10:25 AM
Adding Master Bath - layout ideas bainer1290 Building & Construction 0 01-26-2011 10:31 AM
Bath Replumbing lynda2006 Plumbing 5 08-11-2010 10:06 PM




Top of Page | View New Posts