Conduit penetration through wall

[Mustwin351]

Is it necessary to "sleeve" a conduit that runs through a wall with a larger diameter conduit?

i have had to do this on job sites in the past and don't quite see why it was necessary...

 

[infinity]

Occasionally we will see that in the spec but it's generally not required. For the record we almost never use them. Sometimes it does make it easier to remove the conduit in the future if it runs through a sleeve.

 

[Jraef]

If it's a fire rated wall, sometimes you do that to facilitate putting fire stopping compound around the conduit.

 

[Mustwin351]

If it's a fire rated wall, sometimes you do that to facilitate putting fire stopping compound around the conduit.

It always seemed like more of a pain because then you had to fire caulk not only inside the sleeve but then around the outside of it as well.

 

[infinity]

It always seemed like more of a pain because then you had to fire caulk not only inside the sleeve but then around the outside of it as well.

That's one of the reasons we do not use them. Also lately on our jobs the masons have been mortaring the openings around the conduit.

 

[kwired]

Putting a sleeve in poured concrete for something to be added later is the main reason for a sleeve IMO. If you don't put the sleeve in before the pour then you have to drill it later and a sleeve becomes somewhat pointless, unless you don't want whatever it is you are putting through the concrete to contact the concrete.

 

[Mustwin351]

Putting a sleeve in poured concrete for something to be added later is the main reason for a sleeve IMO. If you don't put the sleeve in before the pour then you have to drill it later and a sleeve becomes somewhat pointless, unless you don't want whatever it is you are putting through the concrete to contact the concrete.

That I can understand. In this application however it was for sleeving emt for wall penetrations through sheetrock. So running the emt through the sheetrock and sleeving it with a larger diameter piece of emt.