Slc Depth UFH and Ditra questions.

[mattyg]

Hiya Folks,

Ok I may be over thinking this.

I need to level the floor upto to the Wedi fundo 40mm.

10mm Wedi board leaving 30mm still

so if we SLC 20mm then UFH (raychem is self adhesive) then slc again 4-5mm then adhesive and Ditra mat that should bring us up to 40mm Give or take a mm or 2 as the Fundo is on adhesive.


Does that sound about right.

Raychem's UFH is designed to go directly under tiles but only 4-5mm SLC should be fine. My issue is if we put it under 25mm of SLC will we ever get the tiles warm.



So yay or nay


Cheers folks

Matt

P.s Can anyone confirm whether Tile giant do Ditra matting

 

[Gazzer]

Why dont you use thicker Wedi instead of 10mm ? Better insulation!

 

[mattyg]

Too late bought it already.

To be honest we kinda had it all planned until we removed the old floorboards and tried to fix the deflection. Been a bit of a pain to say the least. Plus the floor is about 30mm out across most of the 3m seems to level about 2/3rds accross. Damn old houses.

So any bigger and we may have issues at the far end.

Hence why I'm thinking 10mm board the SLC so at least the final part of fixing the substrate will be level.

P.s To add we did look at levelling the floor by sistering???? The joists to bring level but ALL the plumbing would have to be removed and refitted (boiler directly underneath in Kitchen) and that would have been a massive job

 

[kilty55]

they dont sell ditra no,but can get mapetex in for you my local has just started stocking it...minted!!

 

[mattyg]

Thanks, I hope I can get it from CTD then but my OH uncle is on holiday so cant ask him until thurs