The Natural Philosopher wrote:
AlexW wrote:

The Natural Philosopher wrote:

Yekal wrote:

I am wanting to put a natural floor down over wet underfloor heating, I
originaly want york flagstone, but this is out of the budget, I have
seen
advertised on the net indian sandstone which they say looks like york.
What I woul like to know, has anybody seen these and are they like
york?, is
it suitable for indoor use over underfloor heating?, basicaly is it
worth
going for or should I go for something else? any suggestions around
£15 per
sqM, need approx. 46 sqM
Thanks


snip
For under floor heaitng I guess that you will need a full mortar bed
which means you'll be mixing a lot of mortar to lay them on.


No,m use tile cement designed for stone - ardurit is the best. Full bed
definitely recommended tho - no dot and dab or you will have loose flags.

Disagree...

If you're talking indian sandstone flags dot and dab, on 5:1
sharp/gritsand to cement will work indoors once pointed they won't
wobble ... mine have been down for over 2 years without single a problem.

For underfloor heating, or outdoors a full bed of whatever is required
(I have some dabbed flags and full beds outdoors and one or two have had
wobbles and/or sound hollow).

I recon that for for 46 m2 of flags your into around 1.5m3 of bedding
.... how pricey is ardurit?

snip

HTH,

Alex