Founded over 85 years ago in 1916, Evergreen Slate is a third-generation business, and is the largest producer and supplier of roofing slate in the USA. Our historical dedication to providing our customers with top quality products and services is second to none, and sets the standard for the industry. We carry products in all colors and many sizes, and our large inventories from 15 operating quarries permit wide choices and rapid delivery. Our professional services include design support and experienced advice for your construction ideas.