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Hazard alert – fire demolition and asbestos exposure

Date posted: 2023-12-11

In 2023, a number of fires resulted in the emergency demolition of buildings. Many of these buildings were built or renovated before 1990, meaning they may have contained asbestos. Employers and property owners must consider the potential for asbestos-containing material (ACM) to be present during demolition and rubble removal. By law, all materials suspected of containing asbestos are considered ACM unless proven otherwise.

Asbestos was once widely used in the construction industry and is still present in many older buildings. Asbestos is a strong, fire-resistant fibrous mineral. In the past, asbestos was used as insulation against heat or noise, and for fire protection. Exposure to asbestos is a leading cause of occupational illness and death in Manitoba. Asbestos fibres can be released during demolition if appropriate measures are not put in place, making them a health hazard for workers and the public if they become airborne.

Employers and owners must ensure that buildings built prior to 1990 have an asbestos inventory, and that annual inspections of ACM conditions take place. 

Prevention measures

SAFE Work Manitoba reminds employers of their responsibilities:

  • Prior to starting the demolition work, ensure an asbestos inventory has been performed on the building by a competent consultant/contractor.
  • Use a certified laboratory to confirm or deny the presence of asbestos suspect materials.
  • ​If asbestos is present, develop an asbestos control plan.
  • Ensure workers been provided with asbestos training if working with or near asbestos containing materials.
  • Provide workers with appropriate personal protective equipment.
  • Confirm workers using a respirator have been fit-tested and trained to use it.

Workers’ responsibilities include:

  • Follow the safe work procedures developed for the workplace.
  • Use all necessary personal protective equipment.

Important resources

​Read the Guide for Asbestos Management

Part 37 of the Manitoba Workplace Safety and Health Regulation

Industry-based safety programs (IBSPs)

If you have questions about this topic that are specific to your industry, please contact your industry-based safety program (IBSP).

If your industry is not currently associated with an IBSP, you’re unsure whether your industry has an IBSP or you have more general questions, please contact SAFE Work Manitoba.





About the WCB

The Workers Compensation Board of Manitoba serves workers and employers through a no-fault insurance system integral to the Manitoba economy. Funded collectively by employers, the WCB promotes safe and healthy workplaces, facilitates recovery and return to work, delivers compassionate and supportive compensation services to workers and employers, and ensures responsible stewardship of Manitoba's workers' compensation system.