Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet


Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile Forum/Advice Board

Sponsors


Reply
Thread Tools Search this Thread
Unread 07-05-2016, 07:25 PM   #1
Vmaxman
Registered User
 
Join Date: Oct 2015
Location: near Pittsburgh, PA
Posts: 56
Curb construction in a Hydro Ban shower

I'm looking into building a shower using hydro ban liquid membrane.

I watched some videos from laticrete. They detail a curb covered with lathe and mud.

Would it be acceptable to build the curb out of 2x's and cover with CBU? Mesh and thin set the seams. Then apply hydro ban.







Sent from my SM-G900V using Tapatalk
__________________
Mike
PGH, PA
Vmaxman is offline   Reply With Quote
Sponsored Links
Unread 07-05-2016, 07:54 PM   #2
Premier Designs
Registered User
 
Join Date: Mar 2014
Location: Hood County Texas
Posts: 298
Hi Mike, if you're wanting to go in that direction just set some forms and pour a concrete curb, easier, faster and better.

What are your plans for a pre-slope and pan?
__________________
Dan
www.premierdesigns4u.com
Premier Designs is offline   Reply With Quote
Unread 07-05-2016, 08:39 PM   #3
Vmaxman
Registered User
 
Join Date: Oct 2015
Location: near Pittsburgh, PA
Posts: 56
Currently, I'm considering CBU walls, deck mud floor, Laticrete's bonded drain, and hydro ban liquid over everything.

The existing subfloor is plywood. Would I pour the concrete curb directly against the plywood or would I extend the felt and lathe from the pan under the curb?

Another question would be recommended cure time of the concrete curb before hydo ban can be applied. I read that deck mud should cure 72 hrs before application. I would think concrete would require more time than that. Ive never seen a spec for application over concrete.


Sent from my SM-G900V using Tapatalk
__________________
Mike
PGH, PA
Vmaxman is offline   Reply With Quote
Unread 07-06-2016, 07:49 AM   #4
Tiger Mountain Tile Inc
Registered Muser
 
Tiger Mountain Tile Inc's Avatar
 
Join Date: Feb 2011
Location: Issaquah, Washington
Posts: 7,020
I would think Laticrete would have a detail for what you are asking and I don't think a lath and mud curb would be necessary for it.
Tiger Mountain Tile Inc is offline   Reply With Quote
Unread 07-07-2016, 09:35 AM   #5
Sharon @ LATICRETE
Registered User
 
Sharon @ LATICRETE's Avatar
 
Join Date: Sep 2015
Location: Bethany, CT
Posts: 307
Hi Mike,
Yes, that is a common practice to use 2 x 4s and CBB. I've attached a reference document drawing for you as well. Let me know if you have any other questions.
Attached Images
File Type: pdf ES-WP312 Stud Curb.pdf (115.4 KB, 126 views)
__________________
Sharon@LATICRETE
www.laticrete.com
Sharon @ LATICRETE is offline   Reply With Quote
Unread 07-07-2016, 09:54 AM   #6
Ken
welchtile.com
 
Join Date: Jan 2008
Location: Grand Rapids, MI
Posts: 1,082
Please do yourself a rock solid favor that amounts to cheap insurance, and not build your curb out wooden material. Use bricks or blocks of some kind. These should be bonded to the substrate with thinset.

Or as mentioned by another poster you could form up and pour a cement curb, however, what was not mentioned, is it should have some kind of reinforcement to the substrate. Think Re-rod, or something along that line.
__________________
Ken
Ken is offline   Reply With Quote
Unread 07-07-2016, 01:29 PM   #7
Vmaxman
Registered User
 
Join Date: Oct 2015
Location: near Pittsburgh, PA
Posts: 56
Sharon, thank you for the response and diagram.

Ken, I like the concrete curb idea but I'm not sure how to anchor it to my substrate (plywood) with rebar. If I go with a concrete curb should it be poured direct to plywood (worries of water in the mix causing delamination) or should there be felt and lath under it?

Sent from my SM-G900V using Tapatalk
__________________
Mike
PGH, PA
Vmaxman is offline   Reply With Quote
Unread 07-08-2016, 09:14 AM   #8
Premier Designs
Registered User
 
Join Date: Mar 2014
Location: Hood County Texas
Posts: 298
I think some lags into the subfloor will stabilize it enough .. You can use a little mortar under the concrete also. I'd go right on the subfloor without paper, the concrete shouldn't be that wet to cause issues.
__________________
Dan
www.premierdesigns4u.com
Premier Designs is offline   Reply With Quote
Unread 07-08-2016, 09:57 AM   #9
Autoplay
Tile Setter
 
Join Date: Jul 2003
Location: Sarasota FL
Posts: 1,835
I've used concrete curbs/curbblock for years,and much prefer them over wood 2x4s.

Bonding concrete curb to wood,I would check to see if Thinset you using is made to bond to wood etc. I rarely/never bond directly to wood,and when I do,I use epoxy.

Before and after pics,wood 2x4's soaked from inproper vinyl liner/holes etc....after,using curb blocks. block size,2"x4"x16". I used Hydroban,and used fabric around perimeter of shower,at curb corners,and ten inches up in the corners.
Attached Images
      
__________________
Rich
Autoplay is offline   Reply With Quote
Unread 07-08-2016, 10:17 PM   #10
Davy
Moderator -- Mud Man
 
Davy's Avatar
 
Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 33,336
Sharon's drawing is fine but it doesn't take into consideration that the floor will probably be out of level, which means your 2x4's will be out of level length ways. And, it shows the slight pitch on the top of the curb without showing how to accomplish that. Of course the CBU nailed to the curb will follow the 2x4's. If you aren't going to mud the curb like we show in the liberry, (shower construction thread), then it may be easiest and best to set a form and pour the curb with concrete. I would start off with tar paper and lath fastened to the plywood on the shower floor and let it extend out under the curb area. Set the curb form level in length with the proper slope toward the shower and pour with concrete.
__________________
Davy

www.davystephenstile.com
Davy is offline   Reply With Quote
Reply

Stonetooling.com   Tile-Assn.com   National Gypsum Permabase


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
No Curb Hydro Ban Shower yellowjacket Tile Forum/Advice Board 144 04-12-2013 01:16 PM
Shower curb construction materials squeakydeke Tile Forum/Advice Board 2 05-26-2005 11:04 AM
Curb construction, etc. jam Tile Forum/Advice Board 24 02-03-2005 02:36 PM
Shower curb construction differences Husker92942 Tile Forum/Advice Board 2 09-28-2004 06:52 PM
curb construction Tim White Tile Forum/Advice Board 4 01-20-2002 01:10 PM


All times are GMT -6. The time now is 04:21 PM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC