Your strata's roof is one of the most expensive assets the corporation owns — and one of the easiest to neglect until it fails. After 15+ years working with strata councils and property managers across British Columbia, we've seen the same patterns over and over: small problems that could have been handled for a few hundred dollars turn into special-levy disasters costing tens of thousands.
This guide walks through what every strata council should be doing to protect that asset, what to expect from depreciation reports, and how to make smart decisions when repairs or replacement come up at the AGM.
1. Schedule Inspections Twice a Year
The single most cost-effective thing a strata can do is book a professional roof inspection in spring (after the wet winter) and fall (before the next one). Inspections catch:
- Lifted or cracked flashings around vents, chimneys, and parapets
- Pooling water on flat sections — usually a sign of drain or slope problems
- Membrane shrinkage, blistering, or seam separation on TPO and SBS roofs
- Granule loss on asphalt shingles (a sign the roof is past its prime)
- Moss and debris build-up that holds moisture against the roof surface
2. Understand Your Depreciation Report
BC strata corporations are required to commission a depreciation report every five years. The roof is almost always among the top three line items by value. Read those numbers carefully:
- Estimated remaining useful life — when the report expects replacement
- Estimated replacement cost — usually in today's dollars, not future dollars
- Funding model — whether the contingency reserve is on track
If the depreciation report says your roof has 5 years left, start budgeting now. Replacement projects need 6–12 months of planning between RFP, contractor selection, AGM approval, and scheduling.
3. Know the Common BC Failure Points
Flat & Low-Slope Roofs
TPO and SBS membranes typically last 20–25 years. The most common failures are at seams, drains, and roof penetrations — not in the field of the membrane.
Sloped Asphalt Shingle Roofs
Standard 3-tab shingles last 15–20 years on the BC coast; architectural shingles 25–30 years.
Cedar Shake Roofs
Beautiful but maintenance-heavy. Without regular cleaning and treatment, BC moss can shorten a cedar roof's life by half.
4. Build a Maintenance Contract
Most reputable strata roofing companies offer annual maintenance contracts that bundle inspections, drain cleaning, minor repairs, and priority emergency response. For most mid-sized strata buildings these contracts pay for themselves the first time they prevent an interior leak.
5. When Replacement Time Comes
Get at least three written quotes from licensed, insured contractors. Compare manufacturer warranties, underlayment specs, tear-off vs. overlay, workmanship warranty length, WorkSafeBC clearance, and resident-management plan.
The Bottom Line
Roofs don't fail overnight — they fail in slow motion over years of unnoticed deterioration. A modest annual investment in inspections and minor repairs will reliably add 5–10 years to your roof's service life and prevent the kind of emergency special levies that strata owners hate.