Electric mat installation - TilersForums.com

[1animal1]

Problem solved I didn't know how fluid the screed would be.

Thanks again chaps for all the advice

 

[Qwerty]

Yes it is . But the fact he has taped it in strips it should allow leveling comp to get in .

Spot on! I always leave a big enough gap around it to allow the slc to fully encapsulate it hence it being strips holding it down. Means no air pockets

 

[1animal1]

Thanks JCR, much appreciated

 

[1animal1]

Right, I have the boards down, heating mat down and tested and one layer of Mapei screed...trouble is, the screed only partially covers most of the cables after a few have risen about 2mm above. I know i can use adhesive on the porcelain tiles when laying which will obviously remove the risk of cutting the cables - but i am more worried that the job isn't being done properly - the conductive properties of the screed, depth (which is 5-6mm), the fact that i can't apply adhesive to the floor etc.

Question is, with the total thickness in mind,can i get away with applying adhesive to the tiles - or am i an idiot for not chucking another bag of screed down?

 

[Flintstone]

If it's just the odd wire poking up a couple mm just tile as normal but be a bit carefully when trowelling around the wires

 

[1animal1]

That's what I was hoping you'd say! the cold connection is out about 3mm too after reviewing this morning... will this be ok or does it need to be fully encased in the screed

 

[Flintstone]

As long as it's fully encased in screed or adhesive that's fine. 3mm is quite a bit, be careful and be carefull not to rub coating off the wire when trowelling or bedding a tile down

 

[1animal1]

Will do and thanks - I was going to navigate around the wires then back butter the tiles to be safe....

 

[SJPurdy]

Will do and thanks - I was going to navigate around the wires then back butter the tiles to be safe....

be careful by the wires but make sure they are covered by/encased in adhesive, so don't navigate "navigate away from them to far.
back butter all the tiles to ensure a solid bed.

 

[1animal1]

Noted - this is going to more long winded than thought as i've 3 bags of rapid set.... thankfully only 6 600x600 on the floor and 66 600x300 for the walls! reckon i'll get 2 or 3 laid per mix?

 

[Flintstone]

You will probably get 3m2 out of a bag

 

[1animal1]

I'm more worried about the 10 minute lay time

 

[Dumbo]

I'm more worried about the 10 minute lay time

If you can take them back and get some slow set .

 

[1animal1]

Possible if i wasn't a smart a***, buying some Mapei porcelain and stone split bags from Tradepoint @ £16 for 2 (notice how cool i am not shopping at B&Q ).

I've also got a bag of Weber from a bathroom fitter mate - but reckon i'll need some more before the jobs done, i'll get some slow setting next time.

 

[Time's Ran Out]

You spend all that money on tiles then half inch the adhesive!