AK - not sure there is a recommended height.

Most that I have seen have been attached to scaffolds and the scaffold would need to be designed to cope with the offcentre load. [Not for a minute suggesting that this would always happen]

The chute supplier should of course provide information as to the precautions necessary, which would depend to some extent on what is being chucked down it.

P

Isn't the dropping of rubbish down a refuse chute within a residential high rise similar?

No real limit on the height you can make these chutes other than the physical strength limitations within the connector chains and material of construction (consider what happens if the chute gets choked and fills with waste), what they are fixed to or supported by, and what is at the bottom. Images of very tall systems seem to show concrete beam walls at the discharge whereas two to three storey feed straight in to a skip.

Suppose your other options are crane hoisted skips or wheelie bins moved in the building elevators (a short waste chute taking material to the nearest access floor).

AK - I stand corrected - by myself!

NASC guidance says 10m max height.

39164_NASC_TG3-19_p7.indd

Your roofing example somewhat different, but similar structural safety considerations apply and for your high rises it is difficult to see how there would be adequate control without some full height structure to attach the chute to. Could in theory put ring bolt anchorages into the building at various heights but that would open up a new series of QQ.

It's a sign of the times that NASC consider it necessary to comment that rubbish chutes should not be used by people.

"Under no circumstances should rubbish chutes be used for the conveyance of people".

I have visions of one or two Winter Olympians using a chute for their luge.

P

You may well be having that debate - one hire company states no more than 40 x 1.2m units in a chain

https://www.hss.com/medias/sys_master/docs/docs/8796170027038.pdf​​​​​​​

At least it's not 13 stories  and of course  there is also information as to what to expect at the bottom to catch  the debris: very useful information.

Thanks a lot guys!

And as we are now restricting the number of people in the building’s lifts( from 18 to 4)  and telling them not to use lifts to go down stairs, the chutes might provide a fun  alternative!  

Edited by user 18 June 2021 09:06:03(UTC)  | Reason: words and thgings

Originally Posted by: A Kurdziel

 

And as we are now restricting the number of people in the building’s lifts( from 18 to 4)  and telling them not to use lifts to go down stairs, the chutes might provide a fun  alternative!  

I conducted a site visit in London a couple of months ago. 7 storey office building within spitting distance of  Grenfall.  Lifts to go up and stairs to go down. BUT 1 person in any lift at any time, and you weren't allowed to touch any buttons. The security bloke who signed us into the building, opened the lift for us using the normal buttons, you walked in and stood in the far corner, he then entered, pressed the button for the floor you wanted and then exited the lift. So you travelled alone.

A very time expensive activity. But that was the rules in place so we just had to suck it up.