wetroom floor

[patriciac]

im getting a wetroom fitted , we are not using a floor kit just concrete how much of a slope in the floor do i need?
need help asap.

 

[White Room]

20mm in about a metre linear

 

[PHG]

You do need to make sure you have the corect falls as the drain has a flow rate , so consult the drain literature for the maximum and minimum flow rates permitted.

Also make sure the screed is fully waterproofed to prevent mold growth within it.

 

[Andy Bonnor]

I do Finnish wet rooms all the time, and the fall rate is at least 20mm in1mtr, more around the drain. Normally the concrete subfloor is roughly levelled by the concrete pouring company, but I always screed it myself anyway. even then its not great, and before tiling, I use tile cement adhesive to acurately straighten any dips, and esp next to walls. This is of course, after primering, and then waterproofing and taping all the 'joints'. Here we use a product called Kerafibre, and needs .5mm thickness on the floors, .4mm walls. and taped and painted with wtrprfng around shower pipes and all board floor wall joins. I have pictures if anyone is interested.