Explains how to correctly measure notches and holes in joists to allow pipework to be laid under floors. ACS and City and Guilds gas training compliant
I understand now…right, you sleeve the pipe through the floor/ceiling…then, seal the sleeve to the brickwork gap using fire resistant mastic Then you seal off the sleeve AT ONE END ONLY between the sleeve and the pipework (this is to stop any leak in the pipework within the sleeve placing gas on two separate floors) My advice would be to seal it at the bottom end…my viper page for this is K18 and the paragraph is called Pipe Sleeving …
A great video .... can you tell me are all your figures from building regulations or from a gas book because it my gas book these numbers are all slightly different?? many thanks
Hi Steve, thanks for watching. The figures come from gas books. I’ve got all of them and tend to use the one that helps me explain things as simply as possible. I know there are different styles of how to represent the figures but they are all based on building regs (the same rules of notching etc apply not just to gas pipes but water etc as well). I’m aware that some books represent the spacing in fractions rather than decimals and vice versa but they’re all just about the same. I hope that helps. 🙏
ah OK thanks for your reply.... I'm just getting a little confused as my niceic book it says that notching in the top of a joist is equal to and no greater than 12.5% of its depth in its permissable zone .... however if notching from the underside of joists it can be equal to and no greater than 15%....within its permissable zone ... I think I will try and find a more up-to-date version... thanks again for these cracking videos!! sitting acs at the end of the month and these really do help...
@@1stevew That sounds a bit complicated! I’ve checked all the current books, and obviously I know the answers to the acs exam questions, so if possible stick to my figures. I would recommend the Viper book, it’s pretty well the industry standard nowadays and you can’t go wrong with it. If there’s anything you’re confused about please let me know and I’ll help you out. Good luck!
I find a lot of grey areas in the gas industry- so as an example I’m doing a new gas run in a loft space . But the way the joists run (Horizontally) is the same way my gas pipe needs to go , therefore noticing is not and option, Can it be clipped to the top of a joist
Hi Charlie, thanks for the question. You can run pipes on top of joists if there’s enough space between the joist and the flooring or whatever else is above it…the notching and drilling rules are only applicable if you have to negotiate a joist running across your pipework. Hope that helps…
@@passyourgas another one you could hopefully help me with.. so I'm looking to do a new gas run in-between floors on a property I'm working in. The builder is trying to make as little mess as possible. (keep the cost down) normally I would be run behind plaster board or chase it within the wall.. however this time they have requested to run in between floors clipped to the wall. (in the corner) reading through volume 2 of the viper book I can't seem to find anything which says its against the rules as long as its sleeved both ends. equally I can't seem to find anything to confirm its ok !
Hi Ed, just made 2, waiting for the bloody RAF to stop flying over my house for a day to give me some time to record a voiceover! They’re about the Pre Assessment worksheet exam that you have to take. Is there anything you’d like to see? Let me know. Cheers
