D
Dumbo
What needs to be pointed out is that he would the same volume of adhesive to fill voids between wires as he would smoothing compoundCall me a bit daft in the head if you want , but forums are for help , to help people who need it.
By telling someone the blloody obvious
" get a tiler "
is not helping matters .
If this chap can't afford a tiler , and is a competent diyer he may just be able to pull it off , seeing some of the work put on here he may just get one of the shhit ones anyway 😉
BUT i will say if he does not listen to the advice about how to do the job , then thats his problem, and it would be imo a big problem if he does not lay insulation boards over that timber , or use slc over the wiring 😵
Price wise material costs it will cost no more to use slc as if he doesn't fill voids in ufh with slc he will have to do it with adhesive roughly speaking they are the same priceTrue,this forum are here for help,but due to difficulty of this job must give him the right direction.
IMO go on heating floor with 800 x 800 is a high risk to damage wires,fit 800 x 800 is hard for an experienced tiler,do it right is another story,so I can't encourage him when I know all this issues.