Roofer (Roofer, Damp and Waterproofer)

Roofers build and repair flat roofs - using hot asphalt, gravel and waterproof sheet materials. They may also build and repair sloped roofs - using asphalt and wood shingles, shakes and masonry or baked clay roofing tiles and metal materials - although this type of work is typically done by a Residential Steep Roofer. Their work also involves setting up scaffolding to provide safe access to roofs. Roofer is a nationally designated trade under the Inter-provincial Red Seal program. Many Roofers work in the construction industry or for home renovation firms. They may need to estimate the materials needed and the cost of installation, in some cases from plans or project specifications. They may determine what costs and materials can be saved and what structures need to be replaced. Roofers work in high and potentially dangerous places, making safety considerations vital. Roofing work is physically demanding, and attrition due to age and diminishing stamina is higher than in other trades. Opportunities for Roofers are closely tied with levels of construction and renovation activity, and weather can have a significant bearing on work scheduling.

Record Book

Program Updates:

  • March 2022: Please be advised that the revised target implementation date for the Harmonized Roofer program is September 1, 2022. Please see the attached Program Update for details.
  • OPSN Archives
  • If you have any questions, please contact ITA Customer Service

Standardized Level Exam (SLE) Updates

  • None

SLE Weighting Charts

Interprovincial Exam Updates

  • None

Interprovincial Exam Information

Program Information

The documents below offer detailed information specific to this program.

  • Program Profile
  • Describes the requirements for apprentices and challengers to earn certification
  • Download(PDF 134.01 KB)
  • Program Outline
  • Guidelines for delivery of technical training at ITA Recognized Training Providers
  • Download(PDF 795.28 KB)

Challenge Certification/Recognize Prior Experience

If you have significant work experience in a trade but have never been certified in Canada, you may apply to challenge the certification.


If you sponsor apprentices but have never been certified in Canada, you may request to supervise and sign-off apprentices when they are ready to be certified. Please refer to the application form on whether this trade qualifies.

  • Instructions
  • How to Apply
  • Download(PDF 264.47 KB)
  • Application Form
  • Personal information and exams scheduling information (for challenge option)
  • Download(PDF 178.62 KB)
  • Employer Declaration
  • Document of relevant work experience
  • Download(PDF 60.8 KB)
  • Statutory Declaration
  • Attestation for self-employment/work experience when employer cannot be contacted
  • Download(PDF 85.85 KB)