Where Material and
Relationships are Time Tested
Why Join The
National Slate Association?
The mission of the National Slate Association is to establish a material and installation standard for, and promotion of, natural roofing slate in North America. The association, which started in 1922 and was reformed in 2002, spans quarriers, contractors, architects, consultants, and distributors with a connection to natural slate. Primary goals of the association are to keep members updated with slate relevant information, give access to the most experienced resources the industry offers, and to promote the education of slate to future generations. If you’re looking to prosper in the slate industry, this association is your key.
Find Contractors, Homeowners and Suppliers
A National Resource For Technical Support
Available For
All Slate Questions
A Community Of
Experts
Contractors
Contractors
Architects
Learn more about how the National Slate Association supports architects across the USA!
Architects
HomeOwners
The National Slate Association helps homeowners across the USA maintain their homes quality!
Homeowners
SLATE SPECIFICATIONS
SLATE COLORS
Stay Informed
We provide the latest industry info to help make informed decisions and costly missteps
Top Resource
Members get access to the wealth of knowledge from industry professionals who are happy to help
Promote the Slate Industry
Continuing education is a necessity towards future generations of slate roofers to keep the tradition strong
Member Project Gallery
TESTIMONIALS
“The NSA offers the wisdom of many experts in the slate industry who have decades of experience. If I ever need any slate related knowledge, I turn to the NSA”.

“It’s great meeting a variety of people who have skills in various fields such as architects, consultants, contractors, and quarriers. Where else can you find such diversity in one association?”

“I never thought I’d find my kind of association at the center of the slate world. Camaraderie, information, material sources…the NSA has it all!”

Latest News
Slate Roof Condition Assessment Surveys – Part 2 – Slating Nails
Technical Bulletin #7 Full PDF Assessing the Condition of the Slating Nails Various types of nails have been used to...
Slate Roof Condition Assessment Surveys – Part 2 – Slating Nails
Technical Bulletin #7 Full PDF Assessing the Condition of the Slating Nails Various types of nails have been...
Slate Roof Condition Assessment Surveys – Part 1 – Slate Shingles
Technical Bulletin #7 Full PDF Introduction Peak U.S. domestic slate roofing production occurred in the...
NRCA National Roofing Day
April 21-22, 2020 Washington Marriott Wardman Park Join fellow roofing industry professionals in Washington, D.C., as...




















Join a community of contractors across the USA that is supports by the National Slate Association!