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yup. I shall find the section and post it. Think it i 5385 Part 3 but cant remember.doesnt BS state that an uncoupler is required on heated screeds and natural stone?
Id definitely use one anyway.
It's BS5385-4 ... And it doesn't say a membrane must be used but it states it helps eliminate stresses associated with green screeds etc that are not fully cured .
I'm sure there is a TTA technical document being prepared about the use of membranes , as of yet there is no BS covering them.
That's it Dave. You are quite right it doesn't specify how uncoupling should be achieved but it must be acknowledged that a simple membrane is probably the easiest modern method. We used to use sand in the old days...
It's coming Alan , it's been in the pipeline of BS updates for a while now...
Did you attend the seminar by the TTA on tiling to calcium sulphate screeds by Colin Stanyard.
No but i doubt I missed very much.
It's BS5385-4 ... And it doesn't say a membrane must be used but it states it helps eliminate stresses associated with green screeds etc that are not fully cured .
I'm sure there is a TTA technical document being prepared about the use of membranes , as of yet there is no BS covering them.
That's it Dave. You are quite right it doesn't specify how uncoupling should be achieved but it must be acknowledged that a simple membrane is probably the easiest modern method. We used to use sand in the old days...
I was assuming to be fair. But only based on the fact that such a membrane has only been around a decade and the regs don't get updated as fast as the industry changes.
And to be honest, adhesive manufacturers didn't have their own until recently so the regs would have been recommended one or two brands only. And I couldn't see that washing.
Adhesive firms obviously make their materials to cope with such stresses. End of.
Nothing actually requires such a membrane. Nothing at all.
When you use one; you're avoiding redeveloping a floor. That's what they're really for I guess. A new floor shouldn't need one all.
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