Gas pipe under concrete floor

[joe jag]

I have a gas pipe running under a bedroom floor and lounge into a kitchen. The bedroom and lounge are suspended wooden floors, however I intend to replace the bedroom floor with concrete/ insulation and screed. How do I protect the gas pipe? Can it be run through the insulation or is it easier to re-route it around the bungalow outside? ( approx 12 metres). I know this has to be done by a 'Gas safe' engineer and I can get quotes. Just wondering if there is a preferred option. Central heating/ radiator pipes will be run through the insulation

[Peanut Gallery]

When I added gas to my pokey little flat, there was an easy route that would have meant the gas pipe was not visually checkable for about a meter (through the wall next to an old chimney breast) - this was not allowed so they had to route it the long way through the bedroom, up high, more bends etc etc.

[Simpo Two]

joe jag said:

I have a gas pipe running under a bedroom floor and lounge into a kitchen. The bedroom and lounge are suspended wooden floors, however I intend to replace the bedroom floor with concrete/ insulation and screed. How do I protect the gas pipe?

When I ran CH pipes through a concrete floor my local plumbers' merchant recommended some kind of very hairy covering; it comes flat in a roll but I can't remember what it's called. Still got most of it left.

[netherfield]

You can get yellow plastic gas pipe which will go under screed,, or bury a plastic pipe or trunking to
shove copper through.

[hellorent]

Just wrap pipe in duct type tape

[Aluminati]

Simpo Two said:

joe jag said:

I have a gas pipe running under a bedroom floor and lounge into a kitchen. The bedroom and lounge are suspended wooden floors, however I intend to replace the bedroom floor with concrete/ insulation and screed. How do I protect the gas pipe?

When I ran CH pipes through a concrete floor my local plumbers' merchant recommended some kind of very hairy covering; it comes flat in a roll but I can't remember what it's called. Still got most of it left.

Hessian sleeve, prevents corrosion.

[Simpo Two]

Aluminati said:

Hessian sleeve, prevents corrosion.

It's more random/hairier than hessian but yes, basically what an Anglo Saxon chieftain would make his trousers from.

[SpeedBash]

This stuff: https://www.wickes.co.uk/Topsleeve-Insulating-Pipe...

[g7jtk]

The gas safe engineer will know exactly how to fit this properly.

[Rough101]

I’m not a gas engineer but hessian definitely is wrong.

I’ve only seen pipes wrapped in thick oily denso tape, at incoming points, as it’s corrosion resistant, but if you look at the gas regs it suggests a plastic sleeve. You can I believe bury tracpipe, but I haven’t seen it done.

Don’t guess, as other posts say, ask a suitably Gas Safe registered fitter.

[vaud]

Simpo Two said:

Aluminati said:

Hessian sleeve, prevents corrosion.

It's more random/hairier than hessian but yes, basically what an Anglo Saxon chieftain would make his trousers from.

It’s actually the neighbours kids guinea pigs.

[Simpo Two]

SpeedBash said:

This stuff: https://www.wickes.co.uk/Topsleeve-Insulating-Pipe...

That's it.

[PRO5T]

Simpo Two said:

SpeedBash said:

This stuff: https://www.wickes.co.uk/Topsleeve-Insulating-Pipe...

That's it.

If you want it condemned it is. You want Denso tape

https://plumbingsuppliesdirect.co.uk/denso-waterpr...

[Simpo Two]

PRO5T said:

Simpo Two said:

SpeedBash said:

This stuff: https://www.wickes.co.uk/Topsleeve-Insulating-Pipe...

That's it.

If you want it condemned it is. You want Denso tape

https://plumbingsuppliesdirect.co.uk/denso-waterpr...

That's what I was advised to use in 2003. I'm not planning on inviting the National House Condemnation Board in to dig up my toilet floor, and I very much doubt they'd find anything exciting if they did.

[PRO5T]

Simpo Two said:

PRO5T said:

Simpo Two said:

SpeedBash said:

This stuff: https://www.wickes.co.uk/Topsleeve-Insulating-Pipe...

That's it.

If you want it condemned it is. You want Denso tape

https://plumbingsuppliesdirect.co.uk/denso-waterpr...

That's what I was advised to use in 2003. I'm not planning on inviting the National House Condemnation Board in to dig up my toilet floor, and I very much doubt they'd find anything exciting if they did.

Awesome, unless you're toilet is gas powered I wouldn't bother either. For gas, or any installation that may be covered by building regs as the OP asked for, use Denso tape.

[Regbuser]

The only answer for any gas installation work is:
Use a correctly accredited GasSafe technician, and obtain certification for Building Control.

As regards routing, it is possible to directly bury a gas pipe in a structural floor, as long as IGEM/UP/2 is complied with, as below:

[gmaz]

Simpo Two said:

joe jag said:

I have a gas pipe running under a bedroom floor and lounge into a kitchen. The bedroom and lounge are suspended wooden floors, however I intend to replace the bedroom floor with concrete/ insulation and screed. How do I protect the gas pipe?

When I ran CH pipes through a concrete floor my local plumbers' merchant recommended some kind of very hairy covering; it comes flat in a roll but I can't remember what it's called. Still got most of it left.

CH pipes are different as they are continuously warming up and cooling down causing expansion and shrinkage. Eventually the joints break and you have a leak so its best not to bury them if at all possible.

[Simpo Two]

PRO5T said:

Awesome, unless you're toilet is gas powered I wouldn't bother either. For gas, or any installation that may be covered by building regs as the OP asked for, use Denso tape.

I said at the start it was CH, ie water. But the interface we're dealing with is the same - copper to concrete.

[dickymint]

Mentioned earlier Tracpipe is the simplest solution. Flexible and already plastic coated. An absolute nono is burying joints and fittings under concrete.


https://www.tracpipe.co.uk/