Bringing concrete floor up

[White Room]

If mixed with sbr it won't be going anywhere

 

[kent tiler]

:20:sbr same gear as we use on old stock bricks or bad backing befor rendering
its not cheep i now tend too use a 4 coat metherd of PVA/EVA&water mix befor rendering

 

[White Room]

Internally of course with the pva

 

[doug boardley]

why not use 12.5 mm hardiebacker, I'm sure it's fine for floors too

 

[mikethetile]

ahh

maybe they werent using an additive or the additive wasnt as good then

i am going back at least twenty years

 

[jay]

floor rendering can be a lot thinner than 65mm if you do it correct you will often see step risers and treads rendered due to poor concrete work and there are no issues with rendering down to about 10mm it use to be if a floor needed more topping than 10mm floor would be rendered anything below 10mm was self leveled with slc

befor rendering a floor you will need to dampen while still wet apply acrilic primer and brush in keeping wet dont let it dry out then sprinkle neat cemeny over area and brush in (slurrying) while still wet apply render dont let slurry coat dry out keep it wet until render covers it this ie also called a bonding coat helps render to stick to substrate

 

[White Room]

Sbr was about 30 years ago but was as rare as rocking horse dung:lol:

 

[Peter]

why not use 12.5 mm hardiebacker, I'm sure it's fine for floors too

Hard to get backerboard in NI but I'd rather do something like that than SLCs. He's got a 9 month baby so would need access of the hall. It's about 8m2.

What way would a cement board/insulating board be fixed to a concrete floor?

 

[stevee]

topps sell ULTRA slc ,can do up to 50mm

 

[Richard Edwards]

Nicobonds Multiflo - They claim that it can be layed up to 35mm in one hit. I've used it on very uneven surfaces - some 2mm and within 200mm laterally, 25mm deep. It works well although strongly recommend to prime with SBR / slurry mix beforehand and leave about 1 hour before pouring. Nicobond also supply granite chips for bulking up slc screeds. Used both above with success. Boards 20mm might not be any more expensive though.