ply or ardex 7001?

[groucho]

with en suites & small bathrooms with 18mm thick floor boards sheets and an area of not more than 3 sqm is it easier to just use ardex 7001 rather than use backer boards. Providing the floor is rigid with no deflection. im tiling a couple of small floors if I use no more ply it will cost the customer more money and me a lot more time. 7001 is made for that reason surely? I mean if you look at the service requirments say in a kitchen then ply out. But an ensuite? couple of oaps.

[grumpygrouter]

with en suites & small bathrooms with 18mm thick floor boards sheets and an area of not more than 3 sqm is it easier to just use ardex 7001 rather than use backer boards. Providing the floor is rigid with no deflection. im tiling a couple of small floors if I use no more ply it will cost the customer more money and me a lot more time. 7001 is made for that reason surely? I mean if you look at the service requirments say in a kitchen then ply out. But an ensuite? couple of oaps.

I personally would go with it, just make sure the floor is solid and you prime as per Ardex spec.

[P'boro tiler]

you mean tongue a grove boards?
i did a similar job this week. i screwed the floor boards down and added noggins to dodgy bits. i then skimmed addy over, stuck hardibacker down and taped the joints and stuck in a few screws. i then used Mapei keraquick with latex.
overkill lol? i'll sleep well at night tho!


the floor boards were very stiff when i had screwd them down and added noggins. i couldnt help but think perhaps i should of used ditra?

[groucho]

Jesus id sleep for week P' boro. I think if the floor was 5+ sqm id board out or if big family. im sure i read somewhere that granfix make a 1 part fast flexy that they clain can go directly on to floor boards regardless. dont know bout that. cheers lads

[Daz]

Have used 7001 many times in similar circumstance, you'll be fine as long as there is no deflection in existing flooring.