Under floor heating?

Question

I want to fit underfloor heating mats in my bathroom and tile the floor.

My question is can the under floor heating mats be fitted directly on top of my existing chipboard floor.

Answer 1

If the heating mats are electric then you can't install any electrical equipment in a B/room unless your part "P" certified

Answer 2

I assume there the electric kind..  The way I always do it is lay 1/2 in cement board ,well nailed and I tape the joints w/ the thin set.  Let dry and clean cement board well and lay mat and staple or tape the mat as flat as possible..  Then I pour a self leveling compound over the mat untill just covered. Approx one bag per 25 s/f of flooring.  Some mesh may float to the top but w/  proper thin set coverage it ll be fine..GL

  And sorry Adrain but I d never put in a plywood in a wet area  such as baths...

Answer 3

A couple of articals

Answer 4

good qusetion    not sure

Answer 5

You ought to overlay the floor with 12mm plywood preferably bonded to the chipboard well screwed approx at 100mm centres then lay your heater mats . your tiles will need to be laid in flexi adhesive with flexible grout. Don't forget to install your flexi tube and heat probe. good luck