| | |
|
|
|
Gas regulations and pipe height? |
|---|
| message from Steve North on 11 May 2004 |
I want to run a gas pipe on a horizontal run just above skirting
level, say 10cm above floor level in a utility room. Is this legal
within the regs and do I have to cover it in any way to protect it?
|
| BigWallop replied to Steve North on 11 May 2004 |
As long as the pipe can be easily seen then you don't need to cover it with anything
as it's taken that people aren't daft enough to bash or kink an exposed pipe of any
kind. The problems start when you hide them in or behind things and people bang nails
and things through them because they don't know they're there.
|
| Ed Sirett replied to BigWallop on 11 May 2004 |
And in particular, there are a _stack_ of regs once gas pipes are in
'ducts' (becasue a small gas leak could build up in a duct).
See FAQ.
|
| Lobster replied to Ed Sirett on 11 May 2004 |
As it happens I have a newly-fitted 22mm gas pipe which I want to make
a bit less obtrusive. It currently runs all the way up the side of a
chimmney breast, at the back, before entering the ceiling. I had
considered either (a) just putting it inside some white PVC trunking,
or (b) in effect extending the chimmney breast width-ways by about an
inch, by battening it out deep enough for the gas pipe, and dry-lining
the whole side of the chimmney breast.
Would either or both of these measures fall foul of the regs?
Thanks
David
|
| Ed Sirett replied to Lobster on 12 May 2004 |
No explicit venting of a vertical duct is required if it is within one
dwelling and has a X-section of less than 0.01m^2 (100cm^2).
The drylining method might fall foul.
Also the pipes must pipe protected from corrosion (denso tape/tar) if they
are inside plaster board.
|
| John Stumbles replied to Ed Sirett on 12 May 2004 |
Hmmm, my copy of BS6891 doesn't say that :-)
- at least not for plasterboard, only for buried pipework:
"9.2 Buried pipework
9.2.1 Internal environment
9.2.1.1 Pipework that is buried in a solid floor or
wall shall be factory sheathed, or protected on site
by wrapping or with suitable bituminous paint
protection."
It also says "8.5.3 Dry lined walls
Installation pipes installed behind dry lining shall be
encased by building material.
COMMENTARY AND RECOMMENDATIONS ON 8.5.3. For
typical examples see figure 5 b) and c)."
and shows examples e.g. for dotted+dabbed run continuous beads of adhesive
either side of the pipe, for battened have a batten either side of the pipe
like ....
(plan view cross section)
/ / / / block wall / / / / /
|
| Ed Sirett replied to John Stumbles on 13 May 2004 |
Your copy of the standard is better than one of my gas fitting text books.
I suspect the intention is to keep the enclosed volume around any gas pipe
small.
|
|
Archived message: Gas regulations and pipe height? (UK DIY House Improvement)
