System and gauge. Product quality varies. Panel thickness, beam size and connection hardware matter for appearance, span and longevity.
Heat. Non-insulated metal roofs can radiate heat downward on hot days. Insulated panels noticeably improve comfort.
Attachment. Attached covers require a sound connection and flashing at the house; low eaves can affect design options.
Cost factors. Roof type, size, finish, insulation, lighting and electrical, footings and access.
Permits. Whether a permit is required depends on your city and the specifics of the structure — its size and height, whether it attaches to the house, its distance from property lines, its roof type and any electrical work. Burbank, Glendale and Pasadena each have their own building departments, while addresses in neighborhoods like Studio City, Sherman Oaks or North Hollywood fall under the City of Los Angeles (LADBS). We’ll help you understand what typically applies before you commit, and the local building department always has the final word.