Tiling over fresh concrete

[Rich]

Hello everyone, quick question. How long would you leave a fresh concrete screed for before you tile it in this weather (below freezing)?

 

[diamondtiling]

A very long long time, hope its protected from the elements.

 

[White Room]

They say 1mm per day, some say six weeks, if the job needs to speeded along you can use a decoupling membrane.

There is a green screed adhesive from bal which you could lay about a week after laying.

 

[Rich]

Yeah I thought as much, the tiler on the job that Im taking over wants to tile straight after!!!! Just wanted to make sure, was aware of building regs but wanted to know if that was over kill. Thank you very much for your help guys

 

[Ajax123]

1mm per day drying time is based on 20oC and 60% ambient RH. Concrete and Screed should not be laid in temperatures below 5oC and above 30oC. No danger of the latter at the moment but real possibility of the former. I have pulled the plug on a number of scree pours in last week or so. Dryin time in this weather will be ages.......

 

[dock]

correct Ajax

Thats if you don't fall down the voids created when the water freezes..................then cracks the substrate!!

Better to hold back at the moment so we don't have to sell loads of low viscosity crack repair compounds when the weather does pick up

 

[Jelthetiler]

I was thinking too that it's too cold to pour concrete. I'd look at whatever adhesive you use too if you are on an 'open to the elements' site. Chances are the drying times will alter massively in these temps.

I'm working inside and knocked up half a bucket of Kerraquick at 9, had to scrape out slops at 3. Never known it to last 6 hours, ever.

 

[Ajax123]

I was thinking too that it's too cold to pour concrete. I'd look at whatever adhesive you use too if you are on an 'open to the elements' site. Chances are the drying times will alter massively in these temps.

I'm working inside and knocked up half a bucket of Kerraquick at 9, had to scrape out slops at 3. Never known it to last 6 hours, ever.

Loads of concrete plants have been unable to supply this wek any way cos they are frozen up. You are right though it is too cold. Even using Hot Water it could be a struggle. Not that it puts a lot of contractors off. Pressure is still on to do stuff that is wrong.....:mad2:

 

[Stan001]

I was on a site just before xmas, inside tiling. Outside the customer and the builder running the site had a guy up on scaffolding in heavy snow rendering the outside of the house. I am no expert on render but asked him ‘wont it just fall off putting it up in this weather’, he said ‘probably mate – but the customer wants the job finished before xmas!’
A year back I sent my own brickies off site as they tried to start laying bricks at minus 5, you cant do that technically nor do I want my trades which I insure up on my icy scaffolding like that.
The trades don’t care. I don’t know who’s to blame – the customers for being stupid, the foremen / builders for being stupid, or the trades for being stupid. (start talking Portland cement, lack of hydration curing at below feezing or ice crystals in the addy and these hairy assed experts look at you like ‘you’re’ the stupid one!)

 

[Gazzer]

I have an irate client this week, he wanted me to lay a small porch floor with marble tiles. I refused until the weather picked up. Although the porch was technically inside the temp in there was below zero and to do the job i would need to be outside.
He says he will get someone else and reported me to where he got my number........they backed me up and said i was correct and only acting in his best interest...........he still insists he will get someone. :mad2::mad2: