On 20/05/2019 16:38, R D S wrote:
I want to overboard a draughty, uneven floor.

And as I could do with raising it about an inch I was thinking about a
thick insulation inbetween.

Then I started thinking about UFH and there are pre-grooved polystyrene
panels that would be ideal.

So just wondering if anyone has any experience of DIY UFH or any
opinions of UFH in general.

yes and yes.

First though is te floora groud floor. 1" of insulation is not enough
for a ground floor. 6" minimumum



--
€œA leader is best When people barely know he exists. Of a good leader,
who talks little,When his work is done, his aim fulfilled,They will say,
€œWe did this ourselves.€�

ۥ Lao Tzu, Tao Te Ching