Responsibility for building cladding and infill
Responsibility for building cladding and infill
(OP)
Let's say that I've designed a steel framed structure that the Architect has chosen to clad with aluminum panels backed up by cold-formed studs. The structural steel is clearly my responibilty but what about the studs for the cladding? Who's responsibility is it to design the cold-formed stuff for C&C loading?






RE: Responsibility for building cladding and infill
BA
RE: Responsibility for building cladding and infill
I would typically include the studs in the scope of my proposal unless specifically instructed that another design professional was taking responsibility.
If the architect is taking resposibility, I would show the studs, and lable them "See architectural" or something of that nature.
RE: Responsibility for building cladding and infill
RE: Responsibility for building cladding and infill
RE: Responsibility for building cladding and infill
RE: Responsibility for building cladding and infill
The AISC code of SP doesn't deal with light gage metal studs at all - not a source to verify whether you are required to design them.
I agree with the others - depends on your contract. Maybe it needs to be clarified in your next project agreement.
RE: Responsibility for building cladding and infill
JAE: You got me on the CoSP. Its the first place I thought to look since the building is steel framed.
The responsibilty for the design CF studs should be clearly defined in the project agreement (and the contract documents if necessary).
Thanks to all.
RE: Responsibility for building cladding and infill
My firm works with a couple of CF framing subs that hire us to perform this type of work. This is especially helpful if the sub likes to panelize the systems, as they may have proprietary systems which they like to utilize.
Nick Deal, P.E.
Michael Brady Inc.
http://www.michaelbradyinc.com
RE: Responsibility for building cladding and infill
If it is a non-loadbearing situation and none of the stud infill forms part of the bracing system, I would just specify on the drawings that the metal stud walls are by the wall framing subcontractor. If I wanted some movement between the stud walls and the steelwork, I would say that the top track is to allow +/-0.5" vertical movement.
RE: Responsibility for building cladding and infill
The design, as others have noted, can be by you or others, but it is a structural function, delegated or not, and in my opinion, you have the responsibility to check the submittal of the delegate engineer to determine compliance with YOUR structural design concept.
Put enough in your contract to at least do the submittal check if not the full design.
RE: Responsibility for building cladding and infill
Some cities take their own sweet time to incorporate model code revisions into their own codes, particularly if the director of code enforcement doesn't like something. I got into trouble for using the latest revision for a job in a major city. I had to go back and check that it met the older version; it didn't, I had to make changes.
Michael.
Timing has a lot to do with the outcome of a rain dance.