New Shower - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Thread Tools Search this Thread
Display Modes
Old 07-01-2009, 12:26 PM   #1
Join Date: Jul 2009
Posts: 1
Rewards Points: 10

Question regarding building a New shower

Replacing tub with a shower. I am down to the concrete slab. My contractor is using tar paper then wire mesh on the first layer of leveling concrete before he puts in shower pan PVC liner. I have not seen this done in any online videos. Is there a reason it should not be done? After the leveling concrete with the wire mesh, he will install PVC liner and then another layer of mud and then he will tile.

Last edited by Al_in_Texas; 07-01-2009 at 01:12 PM. Reason: correction
Al_in_Texas is offline   Reply With Quote
Sponsored Links
Old 07-01-2009, 01:35 PM   #2
Join Date: Mar 2007
Location: Long Island, NY
Posts: 11,194
Rewards Points: 5,348

The concrete under the liner needs to be sloped to the special drain used in this application. The concrete on top also needs to be sloped to the drain.
Ron6519 is offline   Reply With Quote
Sponsored Links
Old 07-01-2009, 11:48 PM   #3
Join Date: Feb 2009
Location: Seattle, Washington
Posts: 344
Rewards Points: 250

Ron is correct, the first layer is called a pre-slope. Meaning it should slope toward the drain. I have never used leveling compound or ever heard of it being used as a pre-slope. Normally showers are built with a sand mix either 3:1, 4:1 or 5:1. Not a concrete mix. I'm not saying his method wont work, however if the pre-slope goes in level and water somehow makes it way under the pan liner, chances are the water under the liner will not make it's way to the drain as it should. Same thing goes for the water that gets past the tile, grout and sand mix and lands on top of the liner.(this does happen) Without a pre-slope under the liner, where's the water going to go?

Last edited by Mop in Hand; 07-02-2009 at 12:03 AM.
Mop in Hand is offline   Reply With Quote
Sponsored Links

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Plumbing in the shower head obeans Plumbing 3 03-11-2009 03:08 PM
Honey, I'm going to re-caulk the shower... homebound Remodeling 1 02-10-2009 09:11 AM
Shower Pan Liner Problem Hottrod33 Plumbing 9 02-02-2009 01:02 PM
Backerboard under Fiberglass Shower Pan? BillyDIY Plumbing 2 12-17-2008 01:47 PM
redoing basement shower - basic questions (relocating drain/options I have) mslide Plumbing 5 10-28-2008 10:42 AM

Top of Page | View New Posts