Mould thrives when three conditions are present: moisture, warmth, and organic material to feed on. Poorly ventilated spaces, ongoing leaks, and high humidity create exactly these conditions. Extended exposure can trigger respiratory illness, allergic reactions, and other health complications particularly affecting children, elderly occupants, and those with respiratory conditions.

As a tenant, you play an important role in preventing mould from worsening.

Watch for persistent damp odours, discoloured spots on walls or ceilings, peeling paint or wallpaper, and condensation on windows. Spotting these signs promptly and addressing them prevents minor concerns from escalating into serious remediation needs.

Report concerns as soon as they are identified. Document issues with photographs and provide written notification to create a record. The sooner the landlord is notified, the faster they can take steps to fix the problem.

Open windows and run exhaust fans during and after cooking or bathing. Use dehumidifiers in damp spaces. Avoid drying clothes indoors when possible. Immediately notify the landlord of any leaks or moisture issues.

Property owners have legal obligations to ensure rental spaces remain safe and habitable. Manitoba's Residential Tenancies Act requires landlords to maintain properties in a safe condition and address health hazards promptly. Mould that results from structural deficiencies, plumbing failures, or building envelope issues is the landlord's responsibility to remediate.

Professional mould remediation addresses mould at its source rather than at the surface level. Certified technicians use containment, negative air pressure, HEPA filtration, and antimicrobial treatment to prevent spore dispersal and ensure complete removal. DIY approaches often fail to address complete contamination and can spread spores into unaffected areas.

If a landlord fails to address confirmed mould concerns within a reasonable timeframe, tenants may file complaints with the Manitoba Residential Tenancies Branch. Keep records of all communications, photographs, and inspection reports. Professional mould inspection reports provide objective documentation supporting any dispute resolution process.