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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-24-2012, 03:19 PM   #1
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Share |
Default

Fixing my Durock Mistake


Hello. Last weekend I started my tile project, of prepping my front porch for tile. (I framed porch with 2x10" joists, 16" OC with a run of 6'). I have 3/4" plywood ontop of that.

Ontop of the plywood I installed 1/2" Durock, and here is the mistake I made...I liquid nailed it down instead of using thinset and screwed the cement board 8" OC with 1 5/8" square heads. I thought it would be OK to use liquid nails instead of thinset, until I started reading the forums...which I should have done prior to starting this.

I really do not want to tear off the Durock, as I doubt it will be reusable. I was thinking since I will have to buy more Durock either way, can I just apply thinset ontop of the Durock I laid incorrectly, and add second layer of 1/2" Durock ontop of the thinset (screwing this second layer as well)? Will that eliminate any moving that may occur because of the gapping caused by the liquid nails?

I realize 1" of Durock doesn't add anything structurally, but I am hoping the thinset between first and second layes will eliminate the movement issue which could crack the tile.

This is an open porch, therefore exposed to weather, so I want to make sure what I do will keep the tile secured and weather tight. If the only option is to tear off the Durock and start over, I will...I am just hoping I do not have too...


Last edited by ScubaGeekNC; 05-24-2012 at 03:42 PM. Reason: adding info-fixing spelling
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 03:53 PM   #2
Newbie
 
Join Date: Apr 2012
Posts: 6
Default

Fixing my Durock Mistake


Remove it, start over.

inthedrops is offline   Reply With Quote
Old 05-24-2012, 05:27 PM   #3
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Default

Fixing my Durock Mistake


When I tear them off, I imagine there will be liquid nails residue all over the subfloor. Will that interfere with the thinset when I re-lay the new Durock? Should I put felt paper down first?
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 05:36 PM   #4
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 954
Default

Fixing my Durock Mistake


Quote:
Originally Posted by ScubaGeekNC
Hello. Last weekend I started my tile project, of prepping my front porch for tile. (I framed porch with 2x10" joists, 16" OC with a run of 6'). I have 3/4" plywood ontop of that.

Ontop of the plywood I installed 1/2" Durock, and here is the mistake I made...I liquid nailed it down instead of using thinset and screwed the cement board 8" OC with 1 5/8" square heads. I thought it would be OK to use liquid nails instead of thinset, until I started reading the forums...which I should have done prior to starting this.

I really do not want to tear off the Durock, as I doubt it will be reusable. I was thinking since I will have to buy more Durock either way, can I just apply thinset ontop of the Durock I laid incorrectly, and add second layer of 1/2" Durock ontop of the thinset (screwing this second layer as well)? Will that eliminate any moving that may occur because of the gapping caused by the liquid nails?

I realize 1" of Durock doesn't add anything structurally, but I am hoping the thinset between first and second layes will eliminate the movement issue which could crack the tile.

This is an open porch, therefore exposed to weather, so I want to make sure what I do will keep the tile secured and weather tight. If the only option is to tear off the Durock and start over, I will...I am just hoping I do not have too...
It doesn't matter with any inches of cement board you use it does not prevent the tile from moving, it's your joists, footings and plywood, cement board is a filler to help bond the thinset to tile and thinset to plywood.

So why will we tell you to pull up the durock?.. Because now you will have movement from ply to durock which will lead in tile moving and popping, grout cracking.

What type of plywood did you use and how thick?

What type of tile are you putting down.
JetSwet is offline   Reply With Quote
Old 05-24-2012, 05:48 PM   #5
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Default

Fixing my Durock Mistake


I put down 3/4" OSB.

The Joists are 2x10", 16" OC and run 6'. I also put in blocking between the joists down the center.

I will be putting down porcelein tile. There are rated to have no water absorbtion, which is why I bought them for this outdoor use.
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 05:58 PM   #6
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Default

Fixing my Durock Mistake


Also, I know adding a second layer of Durock wont add anything structurally.

I was just wondering if I treat that first layer as the subfloor, and use the thinset and add another layer ontop, if the Thinset and second layer of Durock would fix any movement that may occur because I place the first layer incorrectly.

I know I cannot go forward as it is, I am just trying to see if there is a way to correct without having to tear everything off.
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 06:06 PM   #7
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 25,893
Default

Fixing my Durock Mistake


OSB is full of voids in the core and the outside layers.
If this is an exposed outside deck then this is a really bad plan to try an use tile.
joecaption is offline   Reply With Quote
Old 05-24-2012, 06:42 PM   #8
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 954
Default

Fixing my Durock Mistake


Quote:
Originally Posted by ScubaGeekNC
Also, I know adding a second layer of Durock wont add anything structurally.

I was just wondering if I treat that first layer as the subfloor, and use the thinset and add another layer ontop, if the Thinset and second layer of Durock would fix any movement that may occur because I place the first layer incorrectly.

I know I cannot go forward as it is, I am just trying to see if there is a way to correct without having to tear everything off.
Well joe is correct about the osb that's just as bad as not putting the durock on correctly.

Are you shore you have the correct outside porcelain tile? I've seen many porcelain tile jobs done were they have used indoor tile so when it's wet and you have shoes on you slip and fall.

Well in my eyes I don't see anything that you can do to remedy this other then take it all up osb too or just Finnish it and hope that luck is on your side.
JetSwet is offline   Reply With Quote
Old 05-24-2012, 06:57 PM   #9
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,290
Default

Fixing my Durock Mistake


I'm going to ask a few questions and the return when you answer them.

Is the porch framing green treated wood or is it regular floor joists?

Is the porch subject to rain?

Does it get cold enough to freeze in your part of the world?

Are you hoping that this porch deck will shed water and be freeze proof?
__________________
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:
JetSwet (05-24-2012)
Old 05-24-2012, 07:09 PM   #10
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Default

Fixing my Durock Mistake


The entire porch framing is pressure treated.

The porch is covered, however when rains hard, the surface will get wet on the sides...the middle of the porch (it is 6' by 22') stays pretty dry all the time

I live in NC so it rarely gets below freezing, maybe a few times a year.

The porch floor is sloped, so there will not be standing water...it will run off.
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 07:29 PM   #11
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,290
Default

Fixing my Durock Mistake


I know that you want to get the job done as soon as possible---But that green treated wood needs to dry out before you can tile---

The shrinkage with that wet wood is remarkable---and the tile needs to be on a stable surface--

Osb swells up when in a wet or humid environment---so that will be trouble down the road--

I suggest that you use 3/4" BC exposure one (exterior glue) --then add a second layer of 1/2" BC on top--( the 3/4" meets the TCNA guideline but you are outside)

Then use Ditra by Schluter--or one of the other waterproof tile membranes---

If your porch butts against the house--also consider removing a row of siding and use a waterproof flashing.bonded to the Ditra,

Edge flashing will help keep the water from reaching the plywood decking--


I know---geez that's a lot of extra work---but might be the difference between a two year job and a 20 year job--
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is online now   Reply With Quote
Old 05-24-2012, 07:38 PM   #12
Newbie
 
Join Date: May 2012
Location: Mooresville, NC
Posts: 6
Default

Fixing my Durock Mistake


Thanks! After reading everything that I did not know anout how to do this job correctly, I think there is a lot I can do wrong with some pretty nasty consequences down the road. I rebuilt the entire proch ground up because of old rot, and I do not want to do that again.

I am thinking the best thing to do is tear everything off down to the joists and put down composite deckdeck boards instead. There seems to be less risk of my messing things up and I still get the appeal of low up-keep I was thinking the tiles would be.
ScubaGeekNC is offline   Reply With Quote
Old 05-24-2012, 07:48 PM   #13
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,290
Default

Fixing my Durock Mistake


I like tile--but In this case---I agree---nice composite deck flooring is the simplest way to get a long lasting deck skin.

__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is online now   Reply With Quote
Reply

Tags
attach, durock, fix, liquid nails


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
Gap between tub and durock (not lip) megablok Flooring 19 04-05-2012 10:15 AM
Liner and Durock placement rightit Kitchen & Bath Remodeling 7 03-13-2012 06:35 AM
Durock Question md2lgyk Concrete, Stone & Masonry 7 02-18-2012 07:25 AM
fixing a mistake igneous Painting 6 11-11-2010 07:31 AM
Waterproofing Durock? ryan5068 Tiling, ceramics, marble 13 08-28-2010 10:39 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.