Building Regs and floor insulation

Don't be

Flooring grade stiff is highly strong.

And if concerned, do as I did and use rebar in the floor above. Comes in handy for tying the UFH pipes onto.

In general what you want to do is

2/. Poly and DPM. Never sure which way round that should go, but sometime easier to put down styrene first. Use at least 50mm if you can.

4/. Lay UFH pipes, clip to rebar and pressurize before screeding.

6/. PVA and level if screed is crap :-)

For some technical details, take a look at Jablite. There are others around.

In message , Andrew Mawson writes

I am also doing this.

I decided that insulation and floor screed should be left until the habitable space conversion arises. Heavy machinery, holding bolts, dropping items likely to damage the screed etc.

Building regs. may change before you are ready. Just remember to leave enough height below the ceiling joists for your future floor:-)

regards

Tim,

The idea is to get the conversion partly underway so that the planning permission doesn't expire !

AWEM