Comments on: How to Install Suntouch WarmWire In-Floor Heating Part 1 http://floorelf.com/how-to-install-suntouch-warmwire-in-floor-heating-part-1 Help with all your tile needs (and extreme jackassery!) Sat, 19 May 2012 20:47:52 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Scott http://floorelf.com/how-to-install-suntouch-warmwire-in-floor-heating-part-1/comment-page-1#comment-9029 Scott Mon, 05 Mar 2012 17:17:01 +0000 http://floorelf.com/?p=487#comment-9029 Thanks! Your site makes my head hurt. So much knowledge, so little storage room. Thanks! Your site makes my head hurt. So much knowledge, so little storage room.

]]> By: Roger http://floorelf.com/how-to-install-suntouch-warmwire-in-floor-heating-part-1/comment-page-1#comment-9027 Roger Mon, 05 Mar 2012 17:07:58 +0000 http://floorelf.com/?p=487#comment-9027 Hey Scott, Nope, no need in most installations. That particular installation had structural movement issues in the joist system of the second floor. Installing the backer over a layer of flexible thinset gave me an extra layer of uncoupling ability in the substrate. I wanted that layer to deal with the expansion and contraction of the floor system beneath it and the ditra to handle the movement created by the heating element. Every installation is different. That is simply the installation I chose photos from because I had more and they were more detailed than others - you don't need the backer, it can go right over the plywood with ditra. Hey Scott,

Nope, no need in most installations. That particular installation had structural movement issues in the joist system of the second floor. Installing the backer over a layer of flexible thinset gave me an extra layer of uncoupling ability in the substrate. I wanted that layer to deal with the expansion and contraction of the floor system beneath it and the ditra to handle the movement created by the heating element.

Every installation is different. That is simply the installation I chose photos from because I had more and they were more detailed than others – you don’t need the backer, it can go right over the plywood with ditra.

]]> By: Scott http://floorelf.com/how-to-install-suntouch-warmwire-in-floor-heating-part-1/comment-page-1#comment-9022 Scott Mon, 05 Mar 2012 16:41:24 +0000 http://floorelf.com/?p=487#comment-9022 Is there really a need for the backer board? I think I read here where if you are just laying tile, I could use Ditra as my substrate over my plywood subfloor. If that is the case, what is the need for the backer board then heating wire then ditra? So the question is, can I just put the heating element on my plywood subfloor, then proceed as you have described laying the Ditra over it? Is there really a need for the backer board? I think I read here where if you are just laying tile, I could use Ditra as my substrate over my plywood subfloor. If that is the case, what is the need for the backer board then heating wire then ditra? So the question is, can I just put the heating element on my plywood subfloor, then proceed as you have described laying the Ditra over it?

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