Living in Newfoundland and Labrador means dealing with weather-driven humidity and the risk of household mold. For many renters, small oversights — delayed reporting, poor ventilation, or weak documentation — turn manageable issues into costly repairs or disputes. This guide explains how tenants can spot early signs of excess moisture, avoid common mistakes that encourage mold growth, and communicate effectively with landlords or property managers. It also outlines practical steps for documenting damage, requesting repairs, and, when needed, filing a formal application with the provincial residential tenancy authority to resolve unresolved habitability or maintenance problems.
How humidity and mold develop in rental homes
Mold grows where moisture meets organic material: backs of furniture, window sills, behind drywall, and inside HVAC systems. Condensation from poor ventilation, plumbing leaks, or building envelope failures creates the right conditions. Tenants and landlords share responsibility for preventing and addressing these causes, but tenants should know how to act quickly to protect health and evidence for any future dispute.
Common tenant mistakes and how to avoid them
- Waiting to report leaks or damp spots until the problem is severe rather than notifying the landlord promptly.
- Failing to take dated photos or keep a written log of moisture, visible mold, and any health symptoms.
- Using drying methods that trap moisture (like frequent indoor clothes-drying) without improving ventilation.
- Not following up in writing after a verbal repair request, which makes it hard to prove you asked for help.
Why documentation matters
Good records help where responsibility is disputed. Include photos, timestamps, text or email copies, and notes from any conversations. If a landlord does not act, documentation supports applications or hearings before the provincial tenancy authority[1] and references to relevant legislation[2].
Practical prevention checklist for tenants
- Fix visible leaks or report them immediately and request repair timelines in writing.
- Ventilate: use exhaust fans when showering or cooking and open windows when weather permits.
- Keep humidity below about 50% when possible using dehumidifiers or ventilation.
- Follow up repair requests with an email or text that summarizes the conversation and requested action.
Requesting repairs and escalating safely
Start by reporting the issue to your landlord or property manager in writing with photos and a clear description of the problem and requested remedy. If the landlord does not respond or refuses to arrange timely repairs, learn the formal steps to apply to the provincial residential tenancy body and which forms to use. You may also reference public health guidance on household mold for safe cleanup and health precautions[3].
When discussing repairs, you can consult tenant-facing resources on habitability and emergency repairs, such as Health and Safety Issues Every Tenant Should Know When Renting for health-related concerns, and the guidance on shared responsibilities in Routine Repairs in Rental Units: Tenant and Landlord Responsibilities.
FAQ
- Who is responsible for mold prevention and repairs?
- Both landlords and tenants share roles: landlords must maintain the building envelope and plumbing, while tenants must avoid behaviours that create excess indoor moisture; responsibilities can vary by situation.
- When should I file a formal application with the residential tenancy authority?
- File when the landlord fails to fix a habitability or maintenance issue within a reasonable time after written notice, or when repairs are incomplete and affect health or safety.
- Can I clean small mold patches myself?
- Small, non-porous areas may be cleaned safely using proper PPE and ventilation, but recurring mold or large contaminated areas need professional remediation arranged by the landlord.
How-To
- Document the problem: take clear photos, note dates and times, and record any health symptoms you experience.
- Notify the landlord in writing with your evidence and a reasonable repair request and keep the sent message for your records.
- If there is no timely response, call or message the property manager and follow up with a written summary of that contact.
- Arrange temporary mitigation if safe (ventilation, dehumidifier) and avoid disturbing large mold areas that could spread spores.
- If repairs are not done, prepare an application to the provincial tenancy authority with your documentation and submit it according to their procedure.
Key Takeaways
- Prompt reporting and clear documentation protect both health and tenant rights.
- Preventing moisture is often easier and cheaper than fixing mold damage later.
Help and Support / Resources
- [1] Residential Tenancies Division - Government of Newfoundland and Labrador
- [2] Residential Tenancies Act - Newfoundland and Labrador Assembly
- [3] Health Canada - Household mould
