Metal Roof Rafter Construction

I need rafters built for a garage roof, which will be covered with metal roofing. There will be two dormers on the front and matching dormers on the back. 8' width on the dormers. I need to know the size of the rafters using menards I-Joists, and the size of the ridge board. Do I need a ridge board or beam. The walls are concrete ICF. Requirements: - Roof size: 42x38 feet - Medium pitch (5/12 - 9/12) Ideal Skills and Experience: - Carpentry expertise - Experience with metal roofing structures - Knowledge of load-bearing calculations and rafter spacing Please provide samples of previous work.

Project ID: 40586654