National Slate Association

We've been the leading voice for natural slate roofing in North America since 1922. After reforming in 2002, we continue our mission to establish material and installation standards while promoting the use of natural roofing slate across the continent. Our association brings together quarriers, contractors, architects, consultants, and distributors who share a connection to natural slate.

We keep our members updated with slate-relevant information and provide access to the most experienced reso...