Notching

[bassmonster]

Hi all,

i would like to know how much i can notch into the joists running 22mm pipes.

the joist size is 7" X 2".

am i OK to use the talon clips as in pics as this would require me to go notch at least 50mm x 75mm or should i go for nail on clips which are more shallow
thanks.

 

[ShaunCorbs]

nail ons with rap to stop squeaking and 1/8th the depth and for holes from center 1/4

 

[Simon F]

builing regs say 1/8th so
175mm/8 =21.8mm
nail clips or nothing

 

[ShaunCorbs]

also is that an outside wall?

 

[bassmonster]

also is that an outside wall?

thanks for the replies..

yes, outside wall which will be part of a kitchen extension.

21.88 will obviously be not enough......

when you say 1/4 from center, do mean 1 quarter of an inch?

 

[ShaunCorbs]

thanks for the replies..

yes, outside wall which will be part of a kitchen extension.

21.88 will obviously be not enough......

when you say 1/4 from center, do mean 1 quarter of an inch?

1/4 of the total depth for a hole needs to be in the center tho

but the problem your going to get due to outside wall need need to take the span into it

 

[Simon F]

the notch already there looks sufficient size anyway??

 

[Best]

Why do you need to clip the pipes anyhow? If they are heating pipes they will not be going anywhere once you join them all up, - so temporary clips would suffice if you really need.
If they have to be clipped well, then you could put timber between the joists, at correct depth to suit clips.

 

[JCSPLUMBING]

I don't use clips in notches, I just wrap them. Follow the above guide for depths etc

 

[bassmonster]

The old central heating system was run with 15mm. I think I'll leave out the clips as if I notch another couple mm it will be enough for the pipes to sit nicely.

Thank you all for you replies... Much appreciated

 

[gassafe]

Not being funny, but if we all followed the building regs to the word then we would not be able to install a system or notch anywhere lol! Like the above example which came out at 21.8mm lol!!

 

[gassafe]

Never seen talons fitted in a notch! Use nails on where needed...

 

[ShaunCorbs]

Not being funny, but if we all followed the building regs to the word then we would not be able to install a system or notch anywhere lol! Like the above example which came out at 21.8mm lol!!

so you can notch them for a 22mm pipe with clearance just

 

[gassafe]

so you can notch them for a 22mm pipe with clearance just

A 22mm pipe with fittings & wrap ain't gonna fit in a 21.8mm notch surely lol?? Creaky floorboard anyone

 

[ShaunCorbs]

A 22mm pipe with fittings & wrap ain't gonna fit in a 21.8mm notch surely lol?? Creaky floorboard anyone

well who says your tape is dead on im sure you could get it to 25mm quiet easy