1st time tiling and plan on using flooring heat

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Old 07-10-07, 02:50 PM
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1st time tiling and plan on using flooring heat

I'm planning on putting ceramic tile on my bathroom floor.
Although I think I am somewhat handy this will be my 1st time trying this.
I have laid down 1/4" hardibacker on top of my 1" plywood.
I also plan on installing a floor warming system like 'nuheat or warmly yours' so I just ran the electrical wiring yesterday to provide the circuit (will have an electrician do the actual panel hookup).

My question is if there are any preferences between the two systems.
I was looking at nuheat but I don't want to order custom mats (cost and delivery time) and was just thinking of getting a couple of rectangular mats to cover the general areas where we will be standing.

The problem with that is it makes we wonder how I would compensate for the 1/8" difference under my tile where the mat is versus where it is not unless I just use more thinset. Is that basically how it would be done? Would I need a bigger trowel to do that or is it just sort of an estimate?

The warmly yours system looks like it may allow me a little more flexibility by rotating the mesh and cutting it to fit unless I'm mistaken.

TIA, Mark
 
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Old 07-11-07, 10:08 AM
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You could probably find a DITRA (Schluter) mat that can make up the difference in the other areas.
 
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Old 07-11-07, 11:22 AM
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Consider floating self leveling compound over the heating mats and then installing ditra over the slc. Its the best way to go, and you'll have a good flat substrate to set the tile. Use a hot melt glue gun to hold the mats down to the floor so they dont float to the top of the slc. Make sure you use the primer for the slc and read and adhere to all the instructions on the bag. I'd remove the hardibacker first to eliminate any height/transition issues.
 
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Old 07-11-07, 12:23 PM
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ok guys, thanks for the replies.
I guess it's my call now...
 
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Old 07-12-07, 06:48 AM
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Keep in mind that thinset is made for applications of 1/4" or less. Anything more and the tile tends to sink and you gets lots of purging thinset. Medium bed morters can be used to 3/4" thickness.
 
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Old 07-12-07, 07:24 AM
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Thanks for the pointer.
 
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