Services in New Slab

[richo106]

Hi All

 

In my renovation project I will be having a complete new concrete slab and the floor build up will be:

250mm Hardcore/Sand layer

DPM

150mm Concrete

200mm PIR Insulation

UFH Pipes

50mm Screed

 

My question is whereabouts within this slab buildup is best to run services? This includes:

 

Power to the kitchen island (going to put a duct in for it)

Water supply (in new blue pipe) Happy to duct this also 

 

Another question would you expect to have A393 mesh in the 150mm concrete?

 

All replies very much appreciated

[Olf]

8 hours ago, richo106 said:

150mm Concrete

200mm PIR Insulation

UFH Pipes

50mm Screed

 

 

Why not passive slab? (100 to 150mm concrete on 200mm PIR on hardcore)

 

 

8 hours ago, richo106 said:

would you expect to have A393 mesh in the 150mm concrete

That's a question your SE should answer, and if you don't want to have one, at least BC needs to yay it.

[Iceverge]

I'd use 300mm EPS rather than PIR. It's cheaper and would save you some hardcore. 

 

Typically 150mm doesn't need reinforcement. 100mm concrete with reinforcing fibers is usual for mass house builders around here with no screed. Just some SLC if needed for vinyl flooring afterwards.