anhydrite floor screed

[White Room]

If I mention the screed no one seems to have a clue what I'm on about...

 

[Time's Ran Out]

Common practise when testing an anhydrite screed for RH% is a Hair-hygrometer (original) or (digital) or the carbide bomb test.

how many of you guys have a hair-hygrometer ?

But Dave - I haven't got any hair!

 

[Ajax123]

If I mention the screed no one seems to have a clue what I'm on about...

there are a few plants supplying in Hertfordshire and have been for quite a few years. Cemex at Hatfield so I'm a little surprised that you have never come across them but hey if not then I will have to work harder selling them into your patch. 🙂

 

[Ajax123]

Everywhere round here Mark, went to see another failed one today, in an ex show home for a very well known national builder.

I guess you see them all the time so are used to them but If you need any help sorting it Bri I'm only down in Stamford so could joint visit if you needed.

 

[Doozy]

I did a 140sqm ground floor a few years back, travertine over this type of screed. Finished the job on a Friday and was told the plumbers were in the next day to do some work around the rest of the house. I left insructions with the owner that the heating wasn't to be turned back on until I was back on site on the Monday, because I wanted to talk the plumbers through the process to re-warm the floor.

I walked back in on the Monday and the house was like toast. They banged the heating full on the day after I left it and basically left it on all weekend. No tiles lifted, but huge runs of the grout had cracked.

The owner aplogised, with the excuse his wife was pestering to get it up and running because the house was cold, so they ignored my advice and banged it right up to full temp in one go the next day.

If the plumbers had known their arses from their PTFE tape, they wouldn't have done what they did.

Which is exacty the point in this case.

 

[Stef]

I did a 140sqm ground floor a few years back, travertine over this type of screed. Finished the job on a Friday and was told the plumbers were in the next day to do some work around the rest of the house. I left insructions with the owner that the heating wasn't to be turned back on until I was back on site on the Monday, because I wanted to talk the plumbers through the process to re-warm the floor.

I walked back in on the Monday and the house was like toast. They banged the heating full on the day after I left it and basically left it on all weekend. No tiles lifted, but huge runs of the grout had cracked.

The owner aplogised, with the excuse his wife was pestering to get it up and running because the house was cold, so they ignored my advice and banged it right up to full temp in one go the next day.

If the plumbers had known their arses from their PTFE tape, they wouldn't have done what they did.

Which is exacty the point in this case.

That heating should have been left off for 14 days to let the adhesive fully cure.
I'm amazed it never popped any tiles.

 

[Dave]

I did a 140sqm ground floor a few years back, travertine over this type of screed. Finished the job on a Friday and was told the plumbers were in the next day to do some work around the rest of the house. I left insructions with the owner that the heating wasn't to be turned back on until I was back on site on the Monday, because I wanted to talk the plumbers through the process to re-warm the floor.

I walked back in on the Monday and the house was like toast. They banged the heating full on the day after I left it and basically left it on all weekend. No tiles lifted, but huge runs of the grout had cracked.

The owner aplogised, with the excuse his wife was pestering to get it up and running because the house was cold, so they ignored my advice and banged it right up to full temp in one go the next day.

If the plumbers had known their arses from their PTFE tape, they wouldn't have done what they did.

Which is exacty the point in this case.

No guarantee on that job then . 🙂

 

[Doozy]

That heating should have been left off for 14 days to let the adhesive fully cure.
I'm amazed it never popped any tiles.

I was out at a boxing event with the householder a couple of weeks back. The job was done about five years ago and he's never had a problem, once the grout was tidied up.

That's no thanks to him and the plumbers though :yikes: