This topic has been closed by the administrator. Comments are no longer accepted.
I am building a shop that is 48' wide with a 4:12 pitch. It has purlins spaced 16" OC with 7/16 OSB sheathing. I know I need to screw into the purlins for strength. What I don't know is if I absolutely must lay the felt underlayment parallel to the eave.
It would be easier to find purlins to screw into if I laid the felt parallel to the gable (and thus the metal roof panels) because I can then easily find the purlins adjacent to the panel. (This assumes, of course, that I lay felt only as a I also lay a roof panel.)
The question: if I overlap the felt six inches all the way to the ridge, am I not okay to lay the felt parallel to the gable?
Thanks, sincerely.
10/14/2009
Isaiah Industries, Inc.
10/16/2009