Kai Mallari's Notes'

Dryer-Vent-Duct-in-Strata-Is-Common-Property-Not-Owner-Responsibility (Home Systems)

4 min read

The Dryer Exhaust Duct Running Through a Strata Building Is Common Property — the Strata Corporation Must Clean It

decision-rule

Claim: in BC strata buildings, the exhaust duct running from the dryer through the building structure to the exterior is common property under the Strata Property Act, and the strata corporation is legally obligated to maintain and clean it. Bylaws that purport to make owners pay for this cleaning are contrary to the SPA and unenforceable.

Mechanism

The BC Strata Property Act defines pipes, wires, ducts, and cables as common property if they are located within a floor, wall, or ceiling forming a boundary between a strata lot and common property, or if they serve more than one strata lot (e.g. a shared exhaust riser).1

A dryer exhaust duct in a multi-unit strata building:

  • Passes through the floor, wall, or ceiling separating the unit from building structure
  • Typically connects to a shared riser serving multiple units
  • Exits at a common-property exterior surface (the building facade or roof)

All of this is common property. The strata corporation, not the individual owner, is responsible for maintaining and cleaning it under SPA s. 72.1

The bylaw trap: some strata corporations have adopted bylaws that require owners to arrange and pay for dryer duct cleaning. CHOA’s position is that the SPA’s Regulations do not currently permit a strata corporation, by bylaw, to shift responsibility for maintaining common property to individual owners — making such bylaws contrary to the Act.12

Decision rule for owners

  • Your appliance (the dryer itself) → your responsibility to maintain, repair, and replace.
  • Your transition duct (the short flexible section from the dryer to the wall inlet — within your strata lot) → your responsibility to inspect and maintain.
  • The exhaust duct inside the building structure, and any shared riser → strata corporation’s responsibility to maintain and clean annually.

If your strata requires you to arrange or pay for duct cleaning beyond the transition duct, raise this with your strata manager and reference the CHOA guidance. Keep your correspondence in writing.

Fire-safety implication

The duct in the building structure is the section most prone to significant lint accumulation — it is longer, has more bends, and is inaccessible for owner inspection. If the strata does not clean it annually, the fire risk accumulates in a section the owner cannot access or clean. Document requests to the strata manager if they fail to schedule cleaning; this documentation is your procedural defence under SPA s. 135 if damage occurs.

Scope

  • Applies to: BC strata buildings (apartments, condominiums, townhouses with strata registration)
  • Does not apply to: detached homes (no common property; owner owns and is responsible for the full duct run); strata buildings where bylaws have been validly amended within the SPA’s regulatory permissions
  • Consult your specific strata plan and bylaws to confirm the common-property boundary for your unit’s duct; configurations vary

Sources

Idea Compass

North: Where this comes from

  • dryer (Home Systems) — the parent component note this decision rule supports
  • BC Strata Property Act s. 72 — the statutory obligation on the strata corporation for common-property maintenance
  • CHOA Bulletins 300-829 and 800-218 — the BC strata homeowner association’s authoritative guidance on this specific question

East: Tensions / failure

  • The practical tension: many stratas have (invalid) bylaws requiring owners to pay for duct cleaning, and most owners comply without knowing the bylaw is contrary to the SPA
  • If the strata fails to clean and a fire occurs, the deductible chargeback risk falls on the owner via SPA s. 158 — even though the strata failed to maintain the duct that caused the fire → The Strata Insurance Circularity Problem

South: Where this leads

  • dryer-vent-duct (Home Systems) — the duct itself as a separate component with its own failure modes and cleaning requirements
  • Raising the duct-cleaning schedule with your strata council is the direct action this rule points to

West: What’s similar

Footnotes

  1. CHOA (Condominium Home Owners’ Association of BC) — who pays for dryer vent and ducting costs; common property definition under SPA; strata cannot transfer duct-cleaning responsibility to owners by bylaw — https://www.choa.bc.ca/wp-content/uploads/300-829-28022019-Who-Pays-for-Dryer-Vents-and-Ducting-Costs-1.pdf ↩ ↩2 ↩3

  2. CHOA — who maintains dryer vent ducting; strata corporation’s responsibility under SPA s. 72 — https://www.choa.bc.ca/wp-content/uploads/pdf/800/800-218%2010032016%20Who%20Maintains%20Dryer%20Vent%20Ducting.pdf ↩

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