Beacon Roofing Supply, a distributor of roofing materials and complementary building products, completed the acquisition of Crabtree Siding and Supply, a wholesale distributor of residential exterior building materials. Financial terms were not disclosed. “Joining forces with Beacon is a step ahead for our customers. We have grown the business from humble beginnings by working hard and treating customers right, and it’s clear that those values are inherent at Beacon," Donna Crabtree, Crabtree Owner.