Naas Ferreira's roofing work and demonstrations helped build the Flat Roof Doctor archive. His videos focus on finding leaks, understanding roof details, and explaining repair methods through actual projects.

What to check first

  • The archive includes roof membranes, drains, skylights, chimneys, and metal details.
  • Older demonstrations reflect the products and methods used at the time.
  • This site now organizes those lessons around repair education and current Bergstrom product guidance.

How to use the field archive

  1. Learn from the diagnosis

    Notice which details were inspected and why the suspected defect mattered. Those observations are useful even when your own roof needs a different repair.

  2. Check the current instructions

    Products and guidance change. Compare historical demonstrations with the current Bergstrom catalog before selecting materials or repeating a method.

  3. Apply the lesson to your own roof

    The archive documents individual projects. It does not promise the same outcome, service life, or repair suitability for every building.

From the project archive

Naas Ferreira - Roofing Consultant and Contractor
Historical project photo · Flat Roof Doctor
Naas - My first van as a roofing contractor
Historical project photo · Flat Roof Doctor

Product reference: Bergstrom Industries’ published knowledge catalog. Follow the latest product label and safety information. Historical project examples are educational and are not a specification for every roof.