Natural Slate Roofing (Stone System)
Natural slate is a quarried stone material that has been used for roofing for over a century. It is known for its unmatched durability, natural beauty, and long lifespan. When properly installed, natural slate roofing can last 75–100+ years, making it one of the longest-lasting roofing systems available. Each slate tile is unique in color, texture, and thickness, giving the roof a timeless, high-end appearance that cannot be replicated by manufactured materials. Because it is a natural stone product, slate is heavier than most roofing materials and requires proper structural support, as well as highly skilled installation to ensure long-term performance. Natural slate is typically chosen by homeowners who want the most authentic, long-lasting, and traditional roofing system available.
DaVinci Synthetic Slate (Engineered Alternative)
DaVinci slate is an engineered composite roofing system designed to replicate the look of natural slate while offering different performance and installation advantages.
Instead of stone, DaVinci slate is manufactured using high-performance polymer materials designed for durability, flexibility, and impact resistance. One of the main advantages of DaVinci slate is weight. It is significantly lighter than natural slate, which means many properties can install it without requiring structural reinforcement. DaVinci also offers more flexibility in design, including multiple widths, color blends, and consistent appearance across the roof. While natural slate varies naturally, DaVinci systems are engineered to provide a controlled yet realistic slate appearance. DaVinci slate is typically chosen by homeowners who want the appearance of slate with less structural demand and more design flexibility.
What Is a Slate Roofing System?
A slate roofing system is a layered roofing assembly made from either:
Natural stone slate tiles, and Engineered composite slate (such as DaVinci slate).
These tiles are installed in overlapping courses to create a water-shedding surface.
A complete system includes:
- Underlayment
- Slate tiles
- Long-life fasteners
- Custom flashing
- Ridge and hip components
- Ventilation (when applicable)
Because natural slate is heavy, the structure must be evaluated to ensure it can support the load.
How a Slate Roof Is Installed and Why Each Step Matters
Every project begins with a complete tear-off of the existing roofing system. All materials— including shingles, underlayment, flashings, and ventilation—are removed. Nothing is reused.
Once removed:
Decking is inspected, Damaged wood is replaced, and Structure is evaluated for weight support.
This ensures the system is built on a solid and properly supported foundation.
1
Underlayment Installation
Underlayment is installed across the roof deck. This provides a secondary layer of protection beneath the slate tiles in case moisture penetrates between them.
2
Roof Layout and Planning
The roof is carefully measured and laid out. This ensures proper spacing, alignment, and water flow across the system.
3
Slate Tile Installation
Slate tiles are installed in overlapping courses. Natural slate requires careful handling due to its brittleness, while synthetic slate allows for more flexibility during installation.
4
Fastening System
Each tile is fastened with long-life fasteners. Improper fasteners can deteriorate over time, causing tiles to loosen or fall.
5
Flashing Installation
All flashing is installed new at: This encompasses Valleys, Chimneys, Walls, Skylights and Penetrations.
These are the most leak-prone areas and require precision.
Natural slate tiles with copper snow guards — every fastener, every course installed to last a century
Shelby crew on a historic slate and copper project — precision detail work at the dormer and valley transitions
Why Copper and Lead Are Critical for Slate Roofing
Systems
Slate roofing is designed to last 75–100+ years, which means every component must match that lifespan. Lower-grade materials can deteriorate over time. Even something as small as a nail can affect the entire system.
For example:
Standard nails can corrode, and As they weaken, slate tiles can loosen or fall out.
This is why slate systems rely on:
Copper nails, Copper flashing, and Lead flashing (in specific areas).
These materials resist corrosion and maintain structural integrity over decades, ensuring the roof performs long-term.
6
Ridge and Hip Installation
Ridge and hip areas are completed with proper finishing components. These areas are exposed and must be installed correctly.
7
Final Inspection and Cleanup
This encompasses Roof inspected, Site cleaned, Debris removed and Final walkthrough completed.
Copper snow guards on natural slate — every clip, nail, and flashing matched to the lifespan of the roof
Natural Slate vs DaVinci Synthetic Slate: Sizes, Colors, and
Design Options
Slate roofing is a custom-designed system based on material, size, and color. Natural Slate Sizes
- 10" x 20"
- 12" x 24"
- 14" x 24"
- 16" x 24"
Smaller slates create detailed patterns, while larger slates create a cleaner look. Natural Slate Colors
Blended combinations are also available.
DaVinci Slate Sizes and Widths
Multi-width options (6", 7", 9", 10", 12"), and Single-width systems.
These create a more natural, varied appearance.
DaVinci Slate Colors
- Slate gray
- Black
- Brown blends
- Custom blends
Natural Slate vs DaVinci Slate: What Is the Difference?
Feature Natural Slate DaVinci Slate
Material Stone Composite Weight Heavy Lighter
Lifespan 75–100+ years Long-term
Appearance Natural Replicated
Structure May need reinforcement Often not required
How Size, Color, and Material Affect the Project
These factors impact:
- Appearance
- Installation time
- Material quantity
- Structural requirements
- Overall cost
Every slate project is custom planned.
How Long Does a Slate Roof Last?
Natural slate: 75–100+ years, and DaVinci slate: long-term performance (varies by system).
How Much Does Slate Roofing Cost?
- Roof size
- Structure
- Material selection
- Complexity
A proper inspection is required.
Warranties That Protect Your Investment
Manufacturer/supplier warranty, and Shelby Roofing Services workmanship warranty.
Both are transferable if ownership changes.
Why Proper Installation Matters More Than the Material
Slate requires precision. We focus on:
- Proper layout
- Correct fastening
- Detailed flashing
- Structural evaluation
Permits and Why They Matter
Permits help ensure:
Contractor licensing is valid, Insurance is verified, and Work meets code requirements.
We handle the full process.
Job Site Protection, Cleanup, and Final Walkthrough
During each project:
Dumpster is used and protected, and Site is maintained.
After completion:
Full cleanup performed, Nails and debris removed, and Final walkthrough completed.
What Sets Shelby Roofing Services Apart
We guide each project based on:
Appearance goals, Longevity expectations, and Budget considerations.
- Full documentation
- Drone inspections
- Custom copper work
- Clear communication
Recent Slate Roofing Projects
(Insert photos) Areas We Serve
the Greater Philadelphia Area
Frequently Asked Questions
Is slate worth it?
Yes, for long-term value
Yes (natural slate requires structural support)
Do you reuse materials?
No
Schedule a Slate Roof Inspection
We provide detailed inspections and recommendations tailored to your property.
