About Us

Certified Roof Maintenance Inspections Backed by Experience

The Lower Mainland is a beautiful place to live, but it sure is rainy. 

Because of this, residential roofs in Greater Vancouver should be checked on an annual basis for damage. Commercial properties may require seasonal inspections to fend off potential issues. It all depends on the style of roof and the quality of materials used. 

From built-up roofing and Thermoset (EPDM) roof membranes to metal and green roofs, a visit from a qualified roof consultant can establish your property’s condition and ease your mind.

If you have questions or concerns about what’s overhead, Applied Roofing Science is happy to help.

About The Founder

Hi, I’m Stefan. I was born and raised in Germany. I now call Canada home!

As a registered member of IIBEC and ASTTBC, I proudly uphold the highest ethical and moral principles in everything I do. My extensive knowledge in the roofing, waterproofing, and the building science field is based on over 30 years of practical work experience as a professional installer, manufacturers’ service technician, service manager, instructor, and other roofing management positions. My firm takes field investigation and problem-solving to the next level. As a motivated professional and RCABC–accepted observer, I am committed to providing responsive, high-quality service to all residential, commercial, and industrial clients.

You can probably tell that I love what I do for a living. I look forward to assisting you with your next project.

– Stefan Hanelt, RSE, AScT, RRO, GRP

What Our Clients Are Saying


I am very pleased with the responsiveness and service from Applied Roofing Science. The inspector’s evaluation and respectful advice worked wonders.

Saeed Citchani

Kudo to Stefan who has proven to be the ideal roof consultant for my projects. His overview of the roofing industry is a great asset to the success of my projects.

Rob Kim
President of KAI Construction

We couldn’t be happier with the choice we made. Stefan’s dedication was second to none. He handled our projects with the utmost professionalism.

Russel Coffin
Strata President

Applied Roofing Science was hired to provide an independent inspection of our strata’s roof replacement project. The inspector was knowledgeable, timely and professional throughout the entire project and provided invaluable service to our strata and the team working on the roofs. Applied Roofing Science provided reports that were concise and well organized with details and photos for ease of use. Any challenges or deficiencies were quickly communicated and resolved in a friendly, professional manner. Our sincerest gratitude to this company and their expert service.


Eileen Curran
Strata President

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