Discuss Which electric ufh system in the Tiling over Electric Underfloor Heating area at TilersForums.com

Bopster

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Looking for recommendations for a job I looked at yesterday, it’l be a high spec kitchen which will be having a tiled floor on the concrete slab. Now although I have installed plenty of electric ufh in kitchens and bathrooms none of them have been this size.
It’s all one floor area but would be best zoned into kitchen area 20 sqm, dining area 25 sqm and living area 25 sqm
What system would you guys us?
Mats?
Loose wire?
Grid?
 

Tile Fix Direct

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I like the design of the Schluter Ditra Heat, it gives you a decoupling system to reduce the risk of cracking and incorporates a fleece backing which acts as a thermal break which speeds up the heating and reduces impact sound.
Schluter DITRA-HEAT | Schluter Electric Underfloor Heating - https://www.tilefixdirect.com/category/schluter-ditra-heat
 

Uheat - Jake

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I’d get @Uheat - Jake involved!
Thanks John!

Looking for recommendations for a job I looked at yesterday, it’l be a high spec kitchen which will be having a tiled floor on the concrete slab. Now although I have installed plenty of electric ufh in kitchens and bathrooms none of them have been this size.
It’s all one floor area but would be best zoned into kitchen area 20 sqm, dining area 25 sqm and living area 25 sqm
What system would you guys us?
Mats?
Loose wire?
Grid?
For this area I'd have to recommend a mat system with a SLC and then decoupling on top. The mat is so much easier to lay within such a large space and a lot easier to plan then a loose wire.

Just a heads up as well, 2 of the zones which you want UFH in will need a contactor to switch the loading of the matting as it's over 16amps.

If you'd like a quote please feel free to give me a call.
 
F

Flintstone

Thanks John!



For this area I'd have to recommend a mat system with a SLC and then decoupling on top. The mat is so much easier to lay within such a large space and a lot easier to plan then a loose wire.

Just a heads up as well, 2 of the zones which you want UFH in will need a contactor to switch the loading of the matting as it's over 16amps.

If you'd like a quote please feel free to give me a call.
I don't think that's the best way to go here, I think a system like ditra heat or one of the many other similar systems, no need for levelling, and your only sticking the mat down and clicking the wires in, much less labour and cost over all.
 

Deleted member 38091

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I mostly agree with @Localtiler mats like ditra e or dural cifh I think is the way to go us you get the uncoupling only point i disagree and that's because of personal preference I like to level over but I think we are pretty much singing of the same hymn sheet . Yes mats are quick to throw down in a large area but unless you spend ages sticking them down properly they float up in the levelling comp and I don't care if they are a sticky mat they still do it . In my mind carrier mats are the way forward.
 

Uheat - Jake

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I mostly agree with @Localtiler mats like ditra e or dural cifh I think is the way to go us you get the uncoupling only point i disagree and that's because of personal preference I like to level over but I think we are pretty much singing of the same hymn sheet . Yes mats are quick to throw down in a large area but unless you spend ages sticking them down properly they float up in the levelling comp and I don't care if they are a sticky mat they still do it . In my mind carrier mats are the way forward.
I value both yours and @Localtiler opinion. Mine option was made up from my customers opinions saying larger areas are easier to do it matting. However as you say the decoupling method has become a lot more popular recently.

You couldn't of tried our mats if they peel up when they're levelled, we've never had one person mention that to us in over 15 years.
 
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Deleted member 38091

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I value both yours and @Localtiler opinion. Mine option was made up from my customers opinions saying larger areas are easier to do it matting. However as you say the decoupling method has become a lot more popular recently.

You couldn't of tried our mats if they peel up when they're levelled, we've never had one person mention that to us in over 15 years.
Just because you haven't heard it doesn't mean it didn't happen . I've never mentioned floating mats to any of my suppliers and I've had a few . Just take steps to make sure it doesn't happen .
 

Adey1980

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Schlüter ditra heat so easy to install
 

Bopster

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With the grid systems i know it’s a personal choice but where do people stand on slc or tile straight over? For me I like slc over elec as a future proof thing
I like the idea of grids it’s just the material costs are significantly higher
 

Boggs

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The material cost of DCM Pro is slightly higher than say sticky matt but you easily claw that back with speed of fitting.
 

Bopster

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On this current job I’d be looking at additional £600 for grid. That a lot of time to claw back
 

Deleted member 38091

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Ufh equals levelling comp for me no matter what the system
 

hmtiling

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Scenario, the floor needs levelling and ufh. Why would I level, insulate, carrier mat and tile as opposed to insulate ,ufh mat, level then tile?
Sell it to me guys!
 

Deleted member 38091

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Scenario, the floor needs levelling and ufh. Why would I level, insulate, carrier mat and tile as opposed to insulate ,ufh mat, level then tile?
Sell it to me guys!
I can't because I would do the second unless floor runs 2 " then I would level twice
 
F

Flintstone

There's a few factors to consider when choosing a system for me. If a floor needs some levelling and im fitting porcelain tiles I'll most likely use a mesh system and level over it.
If the floor is good and doesn't need levelling, or I want uncoupling, I'll most likely use a membrane system. Also if it's a more complicated layout.
There really is no problem tiling straight over a membrane ufh system, you fill the cavity as you go.
 

Wayne Brown

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Check out our sponsor the wetroom store below used one of their kits this week and decent quality they do a loose wire system , mats do float in SLC stainless stapels fired into the insulation board and may mesh hold it in place obviously keep well away from the wire .kop

IMG_20190415_165802.jpg Screenshot_20190427-033623.png
 
F

Flintstone

I don't want to upset you, Wayne, but you have fitted that mat upside down, and you have made a fundamental error by taping over the cold tail connector like that, that must be left exposed and encased in the SLC .
 

Wayne Brown

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Perposely did it like that bud well spotted hawk eye to protect the cable bud alot been going on in there floor levels were 40mm difference one to the other not worried about to heat the room as has a big towel rail and a rad it's more to dry the floor up after showering sensors blub is exposed is on top of insulation but thanks for the comments mate . Kop
 
F

Flintstone

Some would beleive you, but I don't ! And taping over that cold tail is the main cause of failure
 
S

Spare Tool

Andy's right Wayne, just for future installs the worse thing you can do is tape over the join to cold tails, and also the crimped end of the wires, think its something like 90% cause of ufh failures, tape the ufh wire down and the cold tail yes but leave a gap in the tape so the joins can be fully encased in slc, or ay the very least tile adhesive..
 

timeless john

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I always encase in fast set flexible adhesive (applied with rubber squeegee ) prior to self levelling compound.
 

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