Running a gas pipe HORIZONTALLY in a dot and dab wall

[stratplus]

How many of you do this? New build included. Just going to have a look at 6891 to clarify my current opinion.

 

[Killy Bing]

Hmm, i would say it would be classed as a cavity so a no no?

 

[IDCHAPPY]

What, as in behind the plasterboard? nope, I'd rather not

 

[stratplus]

Yes behind the plasterboard but solid dabbed around a wrapped pipe.

 

[buckley plumb]

most new builds have gas pipe wraped and fully enclosed in dab behind plaster board. som sites request steel ie on drops .

 

[stratplus]

horizontally though? Seeing it quite a lot recently by 4 or 5 plumbers. Regs only give guidance on cavity.

 

[stratplus]

BS 6891 (pipework) doesn't say that you can't run gas pipe horizontally but all pictured examples only show vertical pipework. I have just moved to a site where the whole gas carcass is ran horizontally around kitchen behind dry lining and they want me to do the same. I was always led to believe that pipework behind dry lined walls should be vertical only, wrapped and solid dabbed. Regs or standards don't seem to give me a reason to say I can't do it.

 

[jonnyswamp]

You can run gas pipe behind dot and dabbed plasterboard as long as the pipe is wrapped and fully encased with adhesive and takes the shortest possible route, but don't know if that applies to horizontal or vertical only
I'm sure someone will be along soon to quote the correct regs

 

[stratplus]

I have only ever ran it vertically, chased in to blockwork, wrapped, plated and solid dabbed. I always found an alternative route to drop vertically to avoid horizontal runs.

 

[Riley]

Interesting one I've come across a lot of these recently too