Underfloor Heating Causing Marks On Tiles

[yogi19]

Dpc membrane. Are they not compulsory on building regs? ??

 

[On one]

Just checking
Possibly......DPM joints not lapped or taped correctly and moisture is wicking up

 

[yogi19]

I have no idea. That had already been done by the time I got there. I was told that as the moisture dries out then discolouring should go does that sound right?

 

[White Room]

I'd give a month before anything else to be honest with ufh running....see if it dries out.

 

[yogi19]

OK thanks. Appreciate it

 

[On one]

So you didn

I have no idea. That had already been done by the time I got there. I was told that as the moisture dries out then discolouring should go does that sound right?

So did you see any evidence of the DPM?.....plastic lapping up the walls or between the old and new screed
Is the marking in a similar place to the new screed?

 

[yogi19]

Yea I see it up the new patio doors. And yes the marks have only happened where the new screed is

 

[yogi19]

And when I said no idea I meant to being lapped or taped as that would be under the screed wouldn't it??

 

[On one]

So.....did you see any of the new plastic DPM,where the new screed meets the old screed?

 

[yogi19]

No. Good point only around the outsides of the screed. So there could be possible damp from there