Question about roof pitch

Hi all-
I want to replace my roof. I have a real bad ventilation issue and need to rip off 2 layers and all the plywood. My house is a single family low ranch style with mainly below grade basement. I just measured the roof pitch from the attic using a 12" level and tape measure. Is it possible to have a 3 and a half/12 pitch??


any pitch is possible. i would just consider it a 4/12.

thanks for the replies. your help is greatly appreciated :smiley: