California Slate Company

Name: California Slate Company
Address: 344 Market Street, San Francisco, CA, 94114, US
Telephone: +18889940842

Home
United States
San Francisco, CA
California Slate Company

Premium natural slate roofing solutions. Traditional & lightweight systems built for beauty, durability, and sustainability. Based in California.

07/08/2026

Here's the part most homeowners never calculate: over 100 years, an asphalt roof gets replaced 4–5 times. A natural slate roof? Once. 🪨

Factor in lifespan, fire resistance, and home value, and "expensive" starts to look a lot like "efficient." 🔗 See why slate pays off: https://www.californiaslatecompany.com/post/is-a-slate-roof-worth-it-cost-vs-lifetime-value

LinkedIn
One natural slate roof can outlast four or five asphalt replacements. When durability, fire resistance, and resale value enter the equation, the long-term math favors slate. We break it down in our latest article. [blog link]

07/04/2026

Happy 4th of July from California Slate.

Today we celebrate the spirit of independence, community, and pride in what we build together. May your day be filled with family, reflection, and moments that last long after the fireworks. Thank you for being part of our story.

www.CalSlate.com

07/01/2026

Most roofs are a recurring expense. A natural slate roof is a one-time decision. 🏠

We just published a new piece on how to actually weigh the value of a slate roof — beyond the price tag. If you've ever wondered whether slate is "worth it,"

Start here.
🔗https://www.californiaslatecompany.com/post/is-a-slate-roof-worth-it-cost-vs-lifetime-value

05/27/2026

Build With Materials You Can Trust

Specifications matter — especially when you’re designing roofing systems that must last generations. California Slate provides architects with true S-1 Grade natural slate backed by certified testing, structural documentation, WUI compliance, and performance data you can rely on

From submittals to installation details, we support your team with the right information at every stage of the process. Clear specs mean fewer surprises in the field — and stronger outcomes for your clients.

Explore specs + certifications →
Read the full article here
https://www.californiaslatecompany.com/post/specifying-with-confidence-why-architects-rely-on-certified-s-1-grade-slate
🔗 www.californiaslatecompany.com/testing-certifications

Recommended @ Mentions:
The American Institute of Architects CSI Construction, Inc. Building Design+Construction

05/25/2026

Build With Confidence

Specifying slate shouldn’t be complicated. Our architectural resources include ASTM data, installation guidelines, CAD details, and product specs — all curated to streamline your workflow and give your clients better outcomes.

Full details here:
https://www.californiaslatecompany.com/post/the-architect-s-guide-to-specifying-slate-roofing

Access everything here:
www.californiaslatecompany.com/testing-certifications
AIA California CSI Construction, Inc. Building Enclosure

05/20/2026

Design Without Limits

Modern architecture demands performance, precision, and timeless materials. Natural slate checks every box. California Slate partners with architects to deliver high-grade, design-flexible slate roofing — from modern coastal builds to steep-slope mountain projects.

Architects deserve materials that don’t compromise performance or design intent. California Slate offers true S-1 grade natural slate + lightweight SLATE2™ — engineered for modern build requirements.

Whether you're detailing a contemporary residence or restoring a historic property, our team supports you with specs, samples, and technical guidance.

Read full info here:
https://www.californiaslatecompany.com/post/designing-without-limits-why-slate-belongs-in-modern
AIA National Construction Specifications Institute

Samples, specs, and one-on-one support available.
📐 Explore architectural resources: www.californiaslatecompany.com

The American Institute of Architects American Institute of Architects Orange County - Associates ArchDaily

05/18/2026

When wildfire swept through Palisades, one roof stood strong — slate.
While surrounding homes were destroyed, this residence was protected by the natural fire resistance of stone.

Slate isn’t just beautiful — it’s Class A fire-rated, non-combustible, and built to last for generations. For families in fire-prone regions, that’s peace of mind no other roofing material can offer.

🏡 Protect your home. Protect your legacy.

🔗 Read the full story: https://www.californiaslatecompany.com/post/why-natural-slate-is-the-smartest-roofing-choice-in-fire-zones

04/24/2026

Safety Starts at the Roof

Fire-Resistant by Nature

Slate is non-combustible. It doesn’t melt, warp, or ignite.
For homeowners in fire-prone regions, that matters — a lot.

A slate roof isn’t just beautiful. It’s peace of mind.

Address

344 Market Street
San Francisco, CA
94114

Telephone

+18889940842

Website

http://www.californiaslatecompany.com/

Alerts

Be the first to know and let us send you an email when California Slate Company posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to California Slate Company:

Want your business to be the top-listed Equipment Service in San Francisco?