Workforce Development
trades_banner.jpg HSAP Red Seal Trade

Insulator (Heat and Frost)

Trade Description:

Heat and frost insulators read and interpret drawings and specifications to determine the requirements, amount and type of materials for any specific project. They measure, cut, fit, install and secure insulation in the required area, and remove or seal off old asbestos insulation.

Potential employers include construction companies, insulation companies and industrial plants.

Trade Regulation
Red Seal Occupational Standard

Apprenticeship - Annual Requirements:

Levels Total Hours/Year
(On-the-Job & Technical Training)
Total Weeks/Year
(Technical Training)
Delivered By



Training Standards:

PDF Document Level One PDF Document Level Chart
PDF Document Level Two PDF Document RSOS Subtask to Unit Comparison
PDF Document Level Three
PDF Document Level Four

Red Seal Exam Information

Red Seal Exam Breakdown Red Seal Exam Self-Assessment Guide
Sample Exams                                                             Red Seal Exam Self-Assessment Guide (PDF)

Challenging the Exam - Trades Qualification:

Years of Experience
Hours Required
Additional Practical
Exam Required
6 10,800 No


PDF Document Employer Declaration | PDF Document Employer Declaration (FR)
PDF Document Statutory Declaration | PDF Document Statutory Declaration (FR)


Designated Trainers:

PDF Document Work Experience Form