Thanks for the quick responses guys, all helpful information. I do understand how the fastener tributary area works, what I am confused about is what pressures to use at the beginning of the design process.
Let me lay out a hypothetical example, maybe that will help:
...Suppose we are putting...
I am working on a small project for a roofing company where they need wind load calculations and a data extrapolation for the fasteners that will attach a roofing membrane to a wood roof deck. The NOA for the membrane they will use gives a fastener spacing pattern and the allowable pressure...
