The bit I need advice about is running the pipe below the new solid floor. Currently, there is a concrete block & beam floor. This will then be covered with 90mm Celotex, then 65mm screed.I am planning to do the following. Does anyone have any objections/suggestions?
I want to run the pipe clipped to the concrete block & beams, cut into the Celotex. Pipe will be 22mm copper, with several solder ring straight couplers. I will need 1 solder ring 22-15 reducing tee. Some sort of sleeve where the copper pipe goes through the screed. (I have some Speedfit conduit which might do the job).
Plumber will pressure test and commission. I have plenty of experience soldering pipework.
Is this the normal way to run a pipe in a new solid floor?
My biggest (slight) worry is what happens if there is a leak (somehow) under the concrete floor. The gas could then seep throughout the whole floor, between the Celotex sheets. Then /if/ there was some kind of spark, I dread to think what could happen. Am I being over-concerned? I suppose the probability is pretty small.
Will discuss with the plumber, but want to know the group's (extensive) collective wisdom. (grovel grovel...)
Thanks for any advice...