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Premium Natural Slate Roofing Solutions
California Slate Company has been a leading provider of premium slate roofing materials for over three decades. Founded by Michael Gibbons, whose 35 years of installation expertise anchor our approach, we deliver high-quality natural slate sourced globally while prioritizing direct customer service and technical support. Our offerings combine traditional craftsmanship with modern innovations like the SLATE2 lightweight system, ensuring solutions for diverse architectural needs.

We emphasize durability, sustainability, and aesthetic excellence, serving homeowners, architects, and contractors nationwide. With rigorous quality standards and a commitment to education, we empower clients to make informed decisions, ensuring every project reflects our legacy of excellence and enduring value.
Services
Slate Roofing Materials SLATE2 Lightweight System Technical Installation Support Product Specifications Color Sample Services
Highlights and features
  • We offer over 30 years of expertise in premium slate roofing solutions.
  • Our SLATE2 lightweight system reduces structural reinforcement requirements.
  • We provide comprehensive technical support and installation guidance.
  • Our slate meets ASTM S-1 and CE compliance standards for durability.
  • We prioritize sustainability with 100% recyclable, low-impact natural materials.
Associations and certifications
  • ASTM International
  • CE Marking
Services
Slate Roofing Materials
California Slate Company offers premium natural slate tiles quarried globally for residential and commercial roofing. Our materials provide centuries-long durability, Class A fire resistance, and unique aesthetic variation through natural color gradients. Each tile meets ASTM S-1 standards, ensuring structural integrity and compliance with modern building codes for long-term performance.
SLATE2 Lightweight System
SLATE2 is an innovative roofing solution combining genuine slate with a lightweight underlayment system. At under 6 lbs/sq.ft., it reduces structural reinforcement needs while maintaining the authentic appearance and durability of traditional slate, making it ideal for modern residential applications.
Technical Installation Support
We provide comprehensive technical resources including brochures, installation specifications, and direct expert consultation. Our support ensures proper slate application, compliance with ASTM standards, and optimal performance for architects, contractors, and homeowners undertaking roofing projects.
Product Specifications
Detailed technical specifications for all slate products include dimensions, weight ranges, durability metrics, and compliance certifications. These resources help professionals select appropriate materials meeting structural requirements, aesthetic goals, and regional building regulations for successful project execution.
Color Sample Services
We offer color samples for all slate varieties to assist in material selection. This service helps clients visualize natural variations in gray, black, and multi-color slates under different lighting conditions before finalizing purchases for residential or commercial installations.
People
Michael Gibbons
Founder
With 35 years of installation expertise, Michael Gibbons founded California Slate Company to provide premium slate roofing solutions combining traditional craftsmanship with modern technical support for nationwide clients.
Questions
What makes California Slate Company's roofing materials unique?
Our natural slate is quarried globally and offers unmatched durability, fire resistance, and aesthetic variation. It’s fully recyclable and designed to last centuries.
What is the SLATE2 lightweight roofing system?
SLATE2 is an innovative slate system weighing under 6 lbs/sq.ft., reducing structural reinforcement needs while maintaining the authentic look of traditional slate.
Are California Slate Company products environmentally friendly?
Yes. Our slate requires minimal processing, lasts generations, and is 100% recyclable, making it a sustainable choice for eco-conscious projects.
Do you offer installation support for contractors?
We provide technical specifications, brochures, and direct expert guidance to ensure proper installation and compliance with industry standards.
What warranty options are available?
Our slate products come with warranties up to 100 years, reflecting their exceptional longevity and performance under harsh weather conditions.