Pet @ www.gymratz.co.uk wrote:

Rick Hughes wrote:

I laid many tonnes of screed over my Nu-Heat system, there is a full
article
on this at - http://tinyurl.com/5m748


Can't log in, Password rqd.
:¬(


IMHO you need 65mm minimum, you can go lower but it WILL crack.


NUheat say 15mm for between joists, that's what I'm going for as 65mm
would be a fair old weight to fall on me swede in the night!

I used 75mm depth of fibre reinforced screed.


As to how dry, if you are buying it comes mixed correctly - if own
mix, then
it should be mixed with minimum water, just enough that if you squeeze a
handful it will hold it's shape, without oozing any water or even making
your hand wet.

If own mixing best way is to damp down sand with a hose, no water
added to
the drum.


makes sense.

A 4:1 mix is good enough .... you can buys bags of Fibrin fibre
reinforcement additives to add to your mix.


Good idea. I will make a note.

Underfloor heating is GREAT, no rads to worry about ... each room has
it's
own digital temp control.
Really pleased with it.



My mate has a NUheat system in his self-build bungalow. He's really
pleased too. One query I have though, is NU-heat are recommending going
away from individual programable stats to a more conventioanl timer &
basic room stats for simplicity of operation (Only one time/program to
set up) as they say 99.9 % of users had the individual programmers all
set up the same anyway.

What's your take on it?
I would have one room (study) which might be beneficial to have an
extended operation time on, but that's about it really.
How do you do yours?

Bear in mind, our downstairs bedrooms are on a seperate zone with the
original radiators (for the forseeable future at least)

If its for heat transfer only,then presumably dry sand is barely worse.
And makes a good sound barrriere.

Kinda surprised, since most wet UFH I have seen merely relies on the air
to transfer heat upwrds to teh floorboards.