Electric UFH Decoupling mat required?

Discuss Decoupling mat required? in the Tiling over Electric Underfloor Heating area at TilersForums.com

Howdy. I'm in the middle of a DIY upgrade of a 1st floor shower room, which is around 8m2. So far i have lifted the 22mm chipboard and fully strengthened/screwed on all joins. installed 10mm XPS boards and leveled across a 1500x900 tray former. Electric UFH fitted and just at the weekend there i have embedded the UFH in Mapei SLC. So leaving the SLC to dry for a week or so, i intend to fully tank/tape using the kit supplied with the tray (PCI Lastogum), then tile with 330x330 ceramic floor tiles.

Should i be considering a decoupling matt, or do you think tank and tile will be sufficient?

My first ever use of SLC, and i couldnt have done it without the sound advice on these forums!!

Your advice appreciated.
 

Localtiler

TF
JOTM Winner
Trusted Advisor
Tilers' Arms Member
No need for uncoupling. Make sure you tank the SLC beyond just the joint of the shower tray.
 

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