Roof diaphragm resistance

[neoncookies]

Hello - This seems very basic and I may just be overthinking it, but can someone help me with the following:

Does the diaphragm resistance needed on a roof change depending on the wall construction? For example, is the diaphragm requirement different if the walls were concrete tilt-up versus steel framed walls (e.g. conventional or pre engineered)? Or is it just a matter of load transfer assuming the walls are properly designed?

Thank you in advance.

 

[JAE]

For seismic it changes the load.

The main seismic resisting system will affect what R value you use to determine base shear and the resulting seismic demand on the structure, including the diaphragm.

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[Once20036]

What's your lateral load system connected to the diaphragm?
The diaphragm resistance needed on a roof will be different for a concrete tilt up shear wall where the diaphgram has a continuous attachment vs a metal skinned building with one braced frame which may (or may not) have a more discrete attachment.