Water pipes buried under floor advice needed

[Gumdrops]

Hello, I hope someone can help me. I'm in England. I would like to know if it's okay to bury copper water pipes under a concrete floor. I've tried to look up the regs but's it's like double dutch to me. The pipes will be wrapped in hessian, overlaid with PIR insulation and then screed. I don't want to step on the plumbers toes but this doesn't seem a good idea. If I have a leak I will have to dig up the whole floor. Is there a better way to do this? There are meters of pipes going to be lying under my floors so I want to make sure they're protected as much as possible. Thanks for your time.

 

[ShaunCorbs]

Can I ask why / do they need to be in the floor normally in the floor space above and drops down etc ?

 

[Gumdrops]

Can I ask why / do they need to be in the floor normally in the floor space above and drops down etc ?

I don't see why they need to be put there but the plumber chose to put them there without any discussion. We have built an extension with underfloor heating in a large area so some of the hot water pipes will be lying under the underfloor heating. The cold mains supply runs near the edge of the room under kitchen units. The plumber is sub-contracted by the builder so I don't know him at all. What questions should I ask given they don't like me asking anything? It's all supposed to be to Building Regs standards.

 

[ShaunCorbs]

I’m guessing it’s easiest for him you want them cleaning of flux eg hot soapy water and a green scouring pad every joint and then waterproof gaffa tape the lot and then 19mm insulation over the lot and joints water proof gaffa tap as well it’s given half a chance then

 

[Gumdrops]

I’m guessing it’s easiest for him you want them cleaning of flux eg hot soapy water and a green scouring pad every joint and then waterproof gaffa tape the lot and then 19mm insulation over the lot and joints water proof gaffa tap as well it’s given half a chance then

Thanks very much for your advice. the pipes have been laid on sub floor like in the photo so will be a real pain to wrap tape around. What can I say to the plumber to get him to listen? He thinks it's fine. Is there anything in the regs?

 

[ShaunCorbs]

Is that bare copper on show ?

 

[ShaunCorbs]

https://www.waterregsuk.co.uk/downloads/public_area/guidance/publications/general/info_leaflets/para_7_guidance_version_2_july_2014.pdf

 

[Gumdrops]

Is that bare copper on show ?

Yes

 

[ShaunCorbs]

See the above wras guidelines

 

[Gumdrops]

See the above wras guidelines

Thank you. Much appreciated!