In the roofing industry, it is easy to see there are 2 sides to success. Contractors. Sub-Contractors. In a world where contractors are always looking for crews to expand their business or fill gaps in scheduling or crews looking to contractors to help keep them busy, both are trying to do the same thing, work smart, make money, and survive the conditions surrounding the toughest industry on the planet! Roofing! The relationship between contractors and sub-contractors is unique and critical when