You know daiku I did hire an engineer and I'm double checking his math. That's what this thread is all about. Imagine that. Hiring someone to do the math they put a
You know what I was right. He had blown it and didn't calculate the snow load right for the size and orentation of the purlins he specified. go figure...
I think you have rely on your better judgement as well and not just rely on the calculator. see ya