The best type of drip edge depends on several factors, including the climate, roofing materials, and the specific needs of the project.

1. Aluminum Drip Edge

Best for: Most residential and commercial applications.
Advantages:
- Lightweight yet durable.
- Resistant to rust and corrosion, making it ideal for various climates, especially humid or coastal regions.
- Affordable and widely available.
Considerations: While strong, aluminum can dent if struck with heavy impact.

2. Galvanized Steel Drip Edge

Best for: Heavy-duty applications and areas with harsh weather conditions.
Advantages:
- Extremely durable and resistant to wear and tear.
- Strong enough to withstand heavy winds, ice, and snow, making it suitable for extreme climates.
- Rust-resistant due to the zinc coating (galvanization).
Considerations: Heavier and more expensive than aluminum, but it offers superior durability.

3. Copper Drip Edge

Best for: Premium or high-end roofing projects and aesthetic-focused installations.
Advantages:
- Highly durable and long-lasting, with a lifespan matching or exceeding the roofing materials.
- Beautiful patina over time adds an aesthetic, unique appearance.
- Resistant to rust and corrosion.
Considerations: Copper is one of the most expensive options and may not be necessary for all roofing types, but it adds a luxurious, high-end look.

4. Vinyl Drip Edge

Best for: Budget-friendly residential projects.
Advantages:
- Inexpensive and easy to install.
- Corrosion-resistant, making it a good option for basic roofing projects.
Considerations: Vinyl is less durable than metal options and can become brittle or crack over time, particularly in extreme weather conditions.

5. T-Style vs. L-Style Drip Edge

T-Style: Best for roofs with more complex structures or where extra protection is needed along the edges.
L-Style: More commonly used for standard roofing, providing a clean finish and good protection.

Conclusion:

For most residential and commercial projects, aluminum is the best all-around drip edge material due to its balance of durability, corrosion resistance, and cost-effectiveness. Galvanized steel is excellent for extreme climates, while copper is ideal for premium, aesthetic installations. The choice will depend on budget, climate, and the architectural style of the project.