Water UFH Tiling On Ufh? - Tile Advice

[J Sid]

so no test has been done on tiling these boards?

 

[Uheat - Jake]

so no test has been done on tiling these boards?

The boards are fine and have been tested, the pipe is also fine with being tiled on and has been tested. However, the pipe hasn't been tested with a primer. The chemicals that a primer contain could have a corrosive substance or something the pipe doesn't like.

 

[J Sid]

ok, understand.
so boards need priming and aloud to dry before the pipe is fitted in groves, yes?

 

[Uheat - Jake]

ok, understand.
so boards need priming and aloud to dry before the pipe is fitted in groves, yes?

That would be fine

 

[Rizzle from the Portizzle]

a water biased primer on the pipes will have no more effect than the water in the pipes
in fact it will create a barrier between the pipe and the cements adhesive witch are more likely
to harden the pipe making them brittle over the years .
you need to go back to the drawing board and right a full spec for tile fixing
to your floors taking into account all of the above we have already talked about .

1 you need to start by under standing what affect expansion has on tiles on pipes

2 understanding that not all flexible adhesive are S1 or S2

3 how much pressure cold water should the pipes be under while being tiled and why

4 what benefit would a 1mm decoupler give to the floor

5 under standing of primers why prime why not

6 time needed to dry before commissioning

7 how to commission the floor on start up

8 understanding the effect of cement adhesive on gypsum boards

9 the need for expansion joints through tile fields of 25m2 and more with tiled floors
with under floor heating .
10 expansion allowance on cutting round door frames and architrave and all perimeters walls internal and external .

as an under floor heating firm these might not seem relevant to you .
but they are essential to tile fixer and end users .

thank you for all your answers at least you are trying to get there but you
need a full tilling spec. not a one size fits all answer for all floor coverings

 

[Lou]

Don't mind me while I bump up some older but good threads. If you can contribute to the thread, go ahead. But if it's nothing for you then don't reply and it'll soon drop off the What's New page etc.
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