Fastening metal panels through 2" insulation - Tek Screws go into bending?
Fastening metal panels through 2" insulation - Tek Screws go into bending?
(OP)
I am assisting a contractor with calculations for fastening corrugate metal panels to wall girts on a structure. There will be 2" of rigid foam insulation between the metal siding and the girts. Thus, the screws will penetrate throught the insulation and into the light gauge metal girt (hat channels) for fastening metal panel and insulation to the wall. The question has been raised, does this then put the Tek screws into bending as they carry the weight of the metal panels over a moment arm the lenght of the 2 inches of insulation? Or can I consider the Tek screws as holding the metal and insulation tight enough together that they act as a sandwich (due to friction/attachment) and thus the Tek screws only see shear?






RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
The only load here is the weight of the rigid insulation and the metal siding?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
I would think that the screws would be subjected to bending. As mentioned above, the rigid foam might reduce that somewhat...but how do you quantify it? I would assume it doesn't do anything.
Can you add another channel or clips where the edge of the panels are going to be to offer some solid support?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
It would seem there is some type of proprietary product for this exact application like a clip as CANEIT mentioned that would ensure you get the proper load transfer.
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
Dik
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?
RE: Fastening metal panels through 2" insulation - Tek Screws go into bending?