Leveling Compound Failed

[LM]

I've seen this before and it might be that the plonker has mixed part A of a powder and liquid levelling compound with water instead of using liquid?

 

[Just Rizzle]

'my builder said he could do it'!!!!!

TYPICAL BUILDER JACK OF ALL TRADESMASTER OF NONE

 

[Flintstone]

I would probably walk away unless your desperate for the work

 

[muddyfunkster29]

It looks to me like the insulation boards haven`t been primed. A weak mix of SLC won`t help either. I wouldn`t get involved unless they are willing to have the ufh taken up, floor primed, cable replaced and re screeded.

 

[Doggit]

Looking at the discolouration on top of the screed, it looks as though waters been added, but I suspect not enough. I reckon the builders treated the SLC as a cement screed, and only added a minimal amount of water. As previous comments have suggested, carefully lift the electric mat, dust it off, relay, and then rescreed

 

[Kyle Knowles]

Don't think primer will make any difference to this. View attachment 80077

That looks like sand and cement mortor ??

 

[Kyle Knowles]

Just keep brushing it over with a stiff brush till its clean buy the look of it it wouldn't take long I bet a good vacuum would suck it up lol