Metal Shingles, Shake, Tile + Standing Seam
Metal Roofing That Transforms Homes & Elevates Expectations
Your home is more than just a building; it's where life happens and memories are made. Protecting it from the elements is crucial, and your roof plays a vital role. But what if you didn't have to worry about it failing?
At Interlock Metal Roofing, we believe in a different kind of roof. One that never needs replacing. One that protects, performs, and adds undeniable curb appeal. One that future-proofs your home.
Never Re-Roof Again.®
Why Metal Roofing? Because Compromise Isn’t an Option.
Considering a roof replacement? Metal roofing offers unmatched durability and longevity. Designed to withstand extreme weather, from scorching summers to freezing winters, it’s a smart investment for lasting peace of mind and enhanced home value.
FREE Quote
Get a Free, No-Obligation Roof Consultation Discover how an Interlock Metal Roof can transform your home. Zoom meetings available for your convenience!
Interlock® Difference
As a leading provider of metal roofing solutions, Interlock® combines advanced technology with the finest materials. Our unique Alunar® Coating System ensures your roof resists wear and tear, maintaining its color and integrity for years.
Interlock Roofing In the News
Extreme Roofing: Interlock Selected for Antarctic Science Base
Engineered for extremes, Interlock Metal Roofing takes on Antarctica with the SPOT MODULE Project and South Pole Overland Traverse from McMurdo Station to the South Pole. Built to endure severe cold, high winds, and the harshest conditions on Earth.
Hon. Jill McKnight Discusses Manufacturing and Tariffs with Interlock Metal Roofing
The Honourable Jill McKnight, Member of Parliament for Delta and Canada’s Minister of Veterans Affairs, visited our Delta manufacturing facility on July 3, 2025. She toured the operations alongside Interlock President Mark Wenzel and took part in a thoughtful conversation on how metal tariffs are affecting Canadian manufacturers and consumers alike.
Eco-Friendly, Fire Resistant, & Cold Weather Ready
Eco-Friendly Choice
Our roofing materials are made from up to 95% recycled aluminum and are 100% recyclable at the end of their long life.
Unmatched Fire Resistance
Interlock roofs can achieve a Class A fire rating—the highest classification available for residential roofing—when installed as part of a complete, approved roofing system, providing superior protection for your home and family.
Cold Weather Ready
Specifically engineered to withstand extreme cold, heavy snow loads, and ice damming, making it ideal for harsh winter climates.
Expert Installation and Unmatched Warranty
Discover the Interlock® advantage and elevate your home’s roof to a work of art that protects, saves, and inspires. Get in touch with us today for a free consultation and take the first step towards a smarter, more beautiful home. Contact us now for a free quote and learn how Interlock® Metal Roofing can transform your home today!
FAQ
1. What makes Interlock Metal Roofing systems different from traditional roofing?
Interlock Metal Roofing systems are engineered as a fully integrated, interlocking aluminum roofing system, not a collection of loosely assembled components. Each panel is precision-manufactured to mechanically interlock, creating a continuous, weather-resistant barrier that significantly outperforms conventional roofing materials such as asphalt shingles.
Unlike petroleum-based roofing products that degrade under UV exposure, thermal cycling, and moisture intrusion, Interlock systems are designed to deliver long-term structural performance across extreme climates. These systems have been successfully installed in some of the harshest environments in the world—from Antarctica to Alaska, and throughout high-heat regions such as Florida—demonstrating consistent performance across wide temperature ranges and weather conditions.
The use of aluminum as the core material provides inherent corrosion resistance, making Interlock Metal Roofing an ideal solution for coastal and high-humidity environments where steel or other materials are prone to rust and deterioration. Each panel is further protected by a multi-layer Alunar® Coating System, engineered to enhance durability, resist fading, and maintain long-term aesthetic performance.
From a safety and performance standpoint, Interlock systems are non-combustible and fire-resistant, providing an added level of protection in wildfire-prone regions. The interlocking design also facilitates efficient snow shedding, reducing snow load accumulation and minimizing the risk of ice dam formation in colder climates.
Every Interlock roof is installed as a complete lifetime roofing system, backed by a transferable lifetime limited warranty, and designed to deliver:
- Long-term durability without the need for replacement cycles
- Low maintenance performance over decades
- Improved energy efficiency through reflective properties
- Consistent protection in both extreme cold and high-heat environments
This combination of engineered performance, material science, and real-world environmental validation positions Interlock Metal Roofing as a premium, long-term alternative to traditional roofing systems.
2. How long does an Interlock Metal Roof last?
Interlock Metal Roofing systems are designed to deliver a service life of 50+ years, significantly exceeding the lifecycle of traditional asphalt roofing, which typically requires replacement every 12–20 years.
Because aluminum does not rust and the system is engineered to resist cracking, curling, and material breakdown, Interlock roofs maintain both structural integrity and aesthetic performance over decades. This longevity is supported by a transferable lifetime limited warranty, making it a long-term capital improvement rather than a recurring expense.
3. How does an Interlock Metal Roof perform in extreme weather conditions?
Interlock Metal Roofing systems are engineered to perform across a wide range of environmental conditions, including:
- High winds and storm events
- Heavy snow loads and ice conditions
- Freeze-thaw cycles
- Intense UV exposure and high heat
The mechanically interlocking panel design enhances resistance to wind uplift and water penetration, while the aluminum construction maintains performance without becoming brittle in cold climates or degrading in heat.
In colder regions, the system facilitates natural snow shedding, reducing structural load and minimizing ice dam risks. In coastal and humid environments, aluminum’s corrosion resistance ensures long-term durability without rust-related failure.
4. Is an Interlock Metal Roof suitable for coastal environments?
Yes. Interlock Metal Roofing systems are specifically well-suited for coastal applications due to the use of aluminum, which does not rust or corrode in salt-air environments.
Unlike steel roofing systems that require protective coatings to prevent corrosion, aluminum provides inherent resistance to salt exposure, making it a preferred material for homes near oceans, lakes, and high-humidity regions. The Alunar® Coating System further enhances protection and long-term finish performance.
5. Are Interlock Metal Roofs fire-resistant?
Yes. Interlock Metal Roofing systems are non-combustible and provide a high level of fire resistance, making them an excellent choice in wildfire-prone regions.
Unlike wood shake or asphalt-based materials, aluminum roofing does not ignite or contribute fuel to a fire, offering an additional layer of protection for the structure.
6. Are metal roofs noisy during rain or hail?
No. When properly installed, an Interlock Metal Roof is no louder than traditional roofing systems.
The system is installed over solid roof decking and incorporates underlayment layers that absorb sound. In real-world conditions, most homeowners experience no noticeable difference in noise levels compared to asphalt roofing.
7. Can an Interlock Metal Roof be installed over an existing roof?
In many cases, yes. Interlock Metal Roofing systems can often be installed directly over existing asphalt shingles, provided the roof structure is sound.
This approach:
• Reduces labor and disposal costs
• Minimizes disruption during installation
• Diverts waste from landfills
A professional inspection is required to confirm suitability.
8. How energy efficient is an Interlock Metal Roof?
Interlock Metal Roofing systems contribute to improved energy performance by reflecting solar radiant heat, helping to reduce cooling loads during warmer months.
When combined with proper attic ventilation and insulation, homeowners may experience improved indoor temperature regulation and reduced energy consumption, particularly in high-sun or warm climates.
9. Can solar panels be installed on an Interlock Metal Roof?
Yes. Solar panels can be integrated using specialized mounting systems designed to maintain the integrity of the roofing system.
Because Interlock roofs are long-lasting, they align well with the lifecycle of solar systems, eliminating the need for roof replacement during the lifespan of the solar installation.
10. What styles and finishes are available?
Interlock Metal Roofing systems are available in a range of profiles designed to replicate traditional roofing materials, including:
- Slate
- Cedar Shingle
- Shake
- Tile
- Standing seam
Each profile is available in multiple colors, finished with the Alunar® Coating System to ensure long-term color retention and resistance to fading.
11. Is Interlock Metal Roofing environmentally sustainable?
Yes. Interlock systems support sustainable building practices through:
- Use of recyclable aluminum materials
- Ability to install over existing roofs, reducing landfill waste
- Long lifespan, minimizing replacement cycles
At the end of its service life, the roofing material remains fully recyclable, making it a responsible alternative to asphalt-based systems.
12. What warranty does Interlock Roofing offer?
Interlock Metal Roofing systems are backed by the Guardian Interlock® Lifetime Limited 50-Year Transferable Warranty, an industry-leading material warranty designed to provide long-term protection and clearly defined performance standards.
This warranty is not a generic “lifetime claim”—it is a structured, performance-based warranty that outlines exactly what is covered, for how long, and under what conditions.
Primary Coverage (Original Owner)
For residential homeowners, the warranty remains in effect for as long as the original purchaser owns the property, providing lifetime coverage against manufacturing defects that materially impact performance. 
Covered defects include:
- Rusting, rotting, splitting, and cracking
- Loss of structural integrity or impact resistance over time
- Combustion-related failure (non-combustible system)
- Panel failure due to manufacturing issues
In addition, the system is engineered and warranted to:
- Withstand wind speeds up to 120 mph (193 km/h) when installed to specification 
- Resist common environmental stresses across diverse climates
If a qualifying defect occurs, Interlock Roofing Ltd. will, at its discretion:
- Repair
- Refinish
- Replace the affected materials
- Or refund the original product purchase price 
Transferability (Resale Value)
The warranty is transferable one time to a subsequent homeowner, extending coverage for up to 50 years from the original installation date. 
- Transfer must be completed within 60 days of property sale
- A transfer fee applies
- Coverage for the second owner is material-only (labor not included) 
This structure allows the warranty to function as a tangible asset during resale, while maintaining clearly defined liability boundaries.
Coating Performance Warranty (Alunar® System)
The aluminum roofing system is further protected by a 30-year coating warranty covering the Alunar® finish against:
- Excessive fading beyond defined industry thresholds
- Chalk degradation beyond ASTM standards 
This ensures long-term aesthetic performance in addition to structural durability.
Commercial / Organizational Ownership
For properties owned by corporations, strata, or organizations:
- Warranty term is 50 years from completion
- Coating remains covered for 30 years
- Warranty is non-transferable 
Scope and Limitations (Transparency Matters)
As with all manufacturer warranties, coverage is specific to material performance, not external factors.
The warranty does not cover:
- Installation workmanship (covered separately by the contractor)
- Structural issues, ventilation, or building deficiencies
- Extreme events such as earthquakes, floods, or improper modifications
- Normal wear, cosmetic changes, or environmental contamination 
What This Means in Practical Terms
Interlock’s warranty is designed to reflect how roofing systems actually perform in the real world:
- It protects against true manufacturing failure, not general wear
- It provides long-term coverage aligned with product lifespan
- It defines clear remedies and responsibilities, reducing ambiguity
Unlike many roofing warranties that rely on marketing language, the Interlock warranty is structured as a formal, enforceable material performance agreement, backed by defined testing standards, engineering tolerances, and documented remedies.