Discuss Heated floor dilemma in the UK Tiling Forum | Tile Advice Forum area at TilersForums.com

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Regis Quality Tiling

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Hi everyone. I'm doing a bathroom floor over existing floorboards. I'm also adding a 1.5 sq m electric heating mat before tiling with 30 x 30 granite tiles. I'm applying thermal board which I'm sticking with adhesive. Been told don't need screws or tape as adhesive will do. My dilemma is whether I then self level or just tile directly onto the matting? If I don't level think I will struggle with my levels across the floor. If I do use self leveller first, how do I make sure it doesn't flow through the holes left accessible for pipework coming out of the floor? Should I batten small areas around ? I've used self leveller before but only on ground floor solid floors
Any advice thoroughly welcome. Thanks,
Nick
 
J K Tiling Cornwall

J K Tiling Cornwall

TF
Arms
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Using screws with washers along with taping the joints would be belt and braces. Just go around with duct tape and cover any gaps or fill with tile adhesive, I usually put a piece of batten across the threshold and duct tape the inside face 👍
 
R

Regis Quality Tiling

TF
Joined
Apr 24, 2019
Messages
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2
Location
Bognor Regis
  • Thread Starter Thread Starter
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Thanks. Do I need to prime the thermal board before applying the self leveller?
 
J K Tiling Cornwall

J K Tiling Cornwall

TF
Arms
Joined
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Messages
133
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91
Location
Cornwall
It never hurts to apply some dilute primer to the boards. Would allow to completely dry before fitting the underfloor heat mat 👍
 

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