Screed and partition wall

[mrmiles]

Hi,

I'm going to get a screed laid over an underfloor heating system, which is over celotex panels, on the ground floor of my house.

At the moment, the room is rectangular, but I intend to put up a partition wall to section off a corner of it which will be a washroom.

My question is this - should the partition walls go up before or after the screed? Is it important?

I was thinking before, so any give in the insulation won't affect anything. But then the screed should be solid, so perhaps it doesn't matter?

Thanks for any opinion!

Miles

 

[gelcoat]

I would think it would be easier and cheaper to have the screed laid first
straight run etc and no obstacles for the screeder to get around

 

[TicklyT]

Hmmm......Just thinking about the fun and games if you manage to put any fixings through the screed into the UFH pipes......

 

[dave1953]

Screed first,then studwork[presumably], screed should be at least75mm thick to avoid Tickly T's well pointed out possible problem.

 

[gelcoat]

If you map out the pipework, which if you have any sense you would do for future reference. you will not encounter any problems with the fixings.
I can speak from experience because I am the senior engineer of a facility and we have 70 X 30 mtrs of underfloor heating, fed from some 22 manifolds.