Advice on Wetroom floor, Vinyl and UFH

[simhopper]

Need some advice, Have spoke to Mapei already and they recommend adesilux P4

I have a disabled wetroom to install with vinyl,They have asked for underfloor heating (devi) to be installed at the last minute

I am using a tuff2 shower former, i will then be laying the devi UFH over this and the rest of the floor but need to smooth this off before laying vinyl

What can i use?Self leveller is out of the question as it will loose all the falls in the tray

Thanks

Simon

[365drills]

When I did my kitchen floor I had a plasterer come in and lay a dry cement mix.

Basically a sand / cement base knocked up with very little water. The plasterer had a labourer to knock up. And then he set about laying it with a trowel and level.

I wont say hand on heart its as straight and level as a self levelling compound but the dry mix gave them the ability to work with it.

Any help?

[div]

What can i use?Self leveller is out of the question as it will loose all the falls in the tray

how will the slc loose the falls ????
lay the devi over the floor then around the former then slc u will still have ur fall..

[div]

mate u r o/boarding with ply here?
over floor up 2 the former?
then devi
slc
then vinyl

[simhopper]

The room is 1200x1700

We are using a tuff2 1200x1200 former

The former and vinyl is suitable for UFH to approx 27`