About Interlock® Metal Roofing

Interlock Roofing is a manufacturer of premium aluminum roofing systems, headquartered in Delta, BC, and operating across Canada and the United States since 1998. The company produces five flagship product lines — Interlock Slate, Cedar Shingle & Shake, Tile, and Standing Seam — engineered with the Alunar® Coating System, with Class A fire rating available, and a 50-year transferable warranty. Interlock has completed 100,000+ residential installations, has products rated by the Cool Roof Rating Council (CRRC), and is a member of the Metal Roofing Alliance and Metal Construction Association.

Most Roofing Companies Sell Short-Term Solutions. We Don't.

Since 1998, Interlock Roofing has been leading the way in high-performance metal roofing — not because it's trendy, but because it's the smarter way to roof. We don't just manufacture beautiful, durable, energy-efficient metal roofing; we redefine what a roof should be.

With 10+ distribution centers across Canada and the United States and thousands of installations in coastal regions, snowy mountains, hurricane zones, and everything in between, we've tested our roofs against every extreme climate imaginable. The verdict? They last. They protect. They outperform everything else.

A Roof That Protects More Than Just Your Home

When you buy a traditional asphalt roof, you're not really buying a roof. You're renting one. You pay for it. It wears out in 15–25 years. You replace it. Repeat. Forever.

At Interlock Roofing, we believe in breaking the cycle. Our metal roofs are engineered to last a lifetime, meaning you never have to re-roof again. Ever.

• It saves you money — no more replacing shingles every decade.
• It saves the planet — made from 95% recycled materials and 100% recyclable.
• It saves your time — because your roof should be the last thing on your to-do list.

Built for Performance. Designed for Beauty.

Most people think of metal roofing and picture industrial buildings or farm sheds. We create metal roofs that look like traditional roofing — without the downsides:

Innovation That's More Than Just a Buzzword

• Alunar® Coating System — keeps colors vibrant, resists corrosion, and blocks UV damage.
• 4-Way Interlocking System — locks panels in place for maximum wind resistance.
• Class A Fire Rating available — non-combustible for ultimate home safety.
• Energy-Efficient & Solar-Ready — reflects heat, lowers cooling costs, works seamlessly with solar panels.
• Lifetime Limited Warranty — because you should never have to worry about your roof again.

Why Homeowners Choose Interlock Roofing

Quality Isn't a Goal. It's the Standard.

A roof isn't just a product. It's a promise — that your home will stay protected, that your investment will last, that you'll never have to worry about leaks, wind damage, or another costly replacement. To keep that promise, we hold ourselves to higher standards than anyone else in the industry.

The Interlock® Quality Assurance Process

• Manufactured for a lifetime — heavy-gauge aluminum, Alunar®-coated for fade and corrosion resistance, designed to last 50+ years.
• Tested in the harshest conditions — hurricane-force winds, heavy snow, and extreme heat.
• Certified by industry experts — third-party testing (UL 2218 Class 4), ICC-ES evaluation report ESR-1790 and Florida approval FL7263, CRRC-rated cool-roof colors, and Class A fire rating available.
• 4-Way Interlocking Technology — panels lock together on all sides for superior wind and impact resistance.
• Stringent installation standards — every installer trained, certified, and continuously educated. No shortcuts. No compromises.

Strategic Collaborations: Industry Partnerships

Metal Roofing Alliance — formed in 1998 by forward-thinking metal roofing manufacturers to educate consumers about the many benefits of metal roofing.

Metal Construction Association — an organization of manufacturers and suppliers whose metal products are used in structures throughout the world.

Making a Difference: Our Commitment to Community Support

Interlock Roofing proudly allocates a portion of the proceeds from each Interlock Metal Roofing System sold to support and enrich the local areas where our team lives and works:

Mission Statement

• To provide our customers exceptional value by ensuring excellence in our products and services.
• To demonstrate an uncompromising commitment to protect the environment by offering sustainable roofing products and practices.
• To continuously enhance and develop our roofing products and services through industry-leading technology, rigorous product testing, constant process improvement and trend-setting design.
• To contribute positively to the communities we operate in.
• To ensure a safe working environment by providing continuous education and training.
• To provide our team members a stable work environment with equal opportunity for learning and personal growth.
• To create a corporate environment that values open communication, efficiencies, teamwork, and the belief in sustainable roofing practices.

Our Story

Interlock Roofing was founded in 1998 by Ivor Wenzel in Delta, British Columbia, on a single conviction: a roof should be the last one a homeowner ever needs. From that first facility, Interlock engineered a lifetime aluminum roofing system and stood behind it with a 50-year transferable warranty — a promise the company still makes on every roof it manufactures today.

In the decades since, Interlock has grown into a North American manufacturer with 10+ distribution centers across Canada and the United States and more than 100,000 residential installations — proven everywhere from coastal salt air and hurricane zones to the snow of the Antarctic plateau. Still family-owned and operating under parent company I.E.L. Manufacturing Ltd., Interlock remains headquartered and manufacturing in Delta, BC.

Leadership

Interlock is a family-owned, founder-led company.

President's Message

Interlock Metal Roofing proudly offers homeowners trend-setting, elegant, and environmentally sustainable roofing solutions with a long tradition. We design and test our roofing products to ensure they are attractive, durable, and last a lifetime. Choosing Interlock means the first time you replace your roof will also be the last.

The Interlock Metal Roofing System meets the most rigorous tests of environmental responsibility. Our lifetime roofing products are made from 95% recycled materials and are 100% recyclable, making them one of the most environmentally sustainable roofs in the industry. Interlock is Cool Roof Rating Council (CRRC) rated. Owning an Interlock roof ends the cycle of landfill waste caused by the disposal of failed roofing. And we are pleased to bring forward practical solar roofing solutions that allow you to harvest clean, renewable solar energy.

We stand by what we sell with an industry-leading Lifetime Limited, non-prorated 50-year transferable product warranty. On behalf of the Interlock Team, I am very proud to offer you the last roof you will ever need and an environmentally sustainable roofing solution for your home.

Mark Wenzel
President & CEO, Interlock Roofing

Company Facts

Learn More

Explore the Metal Roofing Glossary & Education Center, browse real installations, read 8,799 verified customer reviews, or review our Lifetime Limited warranty in full.

Interlock Industries · 9969 River Way, Delta, BC V4G 1M8, Canada · Toll-free 1-866-733-5811