From: Bill Polhemus <bpolhem(--nospam--at)swbell.net>
Date: Sun, 18 Jun 2000 06:37:34 -0500
When I had to do a retrofit for some rooftop equipment in an existing building, I pulled a tag from the end of the joist, which told
me the manufacturer, and the manufacturer's contract number.
I called the manufacturer with this information, and they were able to give me all such data as I needed to determine the joist
capacity. They'll even run your problem for you for a consulting fee.
Bruce Pooley wrote:
> Does anyone know how to evaluate the strength and stiffness of these joists?
> What is your opinion of using these in this structure (second story floor at
> 100 psf)?