National Slate Association
65 East Main Street, Falconer, NY 14733
Hours open
Monday:
8:30 AM - 4:30 PM
Tuesday:
8:30 AM - 4:30 PM
Wednesday:
8:30 AM - 4:30 PM
Thursday:
8:30 AM - 4:30 PM
Friday:
8:30 AM - 4:30 PM
Saturday:
Closed
Sunday:
Closed
Photos
Location & Phone number
About the Business

Welcome to the National Slate Association
Located at 65 East Main Street, Falconer, New York, the National Slate Association (NSA) is your premier destination for all things related to natural roofing slate in North America. Established in 1922 and revitalized in 2002, our association is a diverse network of quarriers, contractors, architects, consultants, and distributors, all united by a shared passion for natural slate.
Our Mission
At the NSA, our mission is to set the standard for material quality and installation practices, while actively promoting the use of natural roofing slate. We strive to keep our members informed with the latest industry insights, provide access to seasoned professionals, and foster the education of future generations in the art of slate roofing.
Why Join Us?
- Expert Knowledge: Access a wealth of knowledge from industry leaders with decades of experience.
- Community Support: Join a vibrant community of contractors and professionals across the USA.
- Quality Standards: Our guide offers a comprehensive description of the quality, materials, workmanship, and dimensions required for specifying slate roofs accurately and efficiently.
- Colorful Options: Discover the beauty of slate with our range of colors, including black, gray, green, purple, and red.
- Continuing Education: We emphasize the importance of education to sustain the tradition of slate roofing.
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!”
Stay Informed
We provide the latest industry info to help you make informed decisions and avoid costly missteps. Our Mobile Field Guide, best viewed on iPhones, iPads, and newer Android phones, offers easy access to essential resources on the go.
Upcoming Events
Join us at the 2024 International Roofing Expo in Las Vegas for an exciting opportunity to engage with industry experts and explore the latest innovations in roofing.
Contact Us
Visit us at 65 East Main Street, Falconer, NY 14733, and become part of a thriving community dedicated to the excellence of slate roofing. Click here to download the Mobile Field Guide press release and stay connected with the NSA.
National Slate Association – Your Key to Prosperity in the Slate Industry
Reviews
"Great site! The most comprehensive site on natural slate roofing I've found. A must visit for anyone that wants to learn about this material. Bought a copy of "Slate Roofs, Design & Installation Manual". Highly recommended for design considerations/details and also for installation practices. Practical for every company that is involved in a roofing slate project. Most gorgeous roofing product on the market, so many color/thickness/layout options. Can be as simple or artistic as you want! And, it's the longest lasting roof you can buy! 5 STARS!!!"
"The NSA is a phenomenal association with some of the best members in the industry you will want to know! The website is massively helpful and even has a mobile field guide to help answer your questions on the fly. Tom Stortz has done an excellent job leading the association and continues to make strides to bring the slate industry into the spot light!"
"Slate roofing is revered by homeowners and installers, it is a beautiful long lasting product that adds class and prestige to every structure it protects. The National Slate Association is about promoting the use and proper installation of slate roofing. Leave a legacy behind, install a slate roof that your grandchildren's children can admire long after you are gone, do it with pride, do it right. Don't Fake It, Slate It."
"A dynamic and historic organization that has served the natural roofing slate industry since 1922! It is great being a member and board of director to such a devoted association in promoting the use of one of the most historic and prominent roofing materials in the world."
"The NSA has been a great resource for our roofing company. The NSA manual provides a wealth of information regarding the quarrying and installation of natural slate. We’ve found the detail drawings to be useful on both historical and modern buildings. We would highly recommend joining the NSA if you're an architect, material supplier or contractor working on slate roofs."
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