Managing commercial properties in the Lower Mainland presents unique challenges, and roofing issues are among the most critical concerns for property managers. The region’s frequent rain, fluctuating temperatures, and coastal climate accelerate wear and tear on commercial roofs. Addressing problems early can prevent costly repairs and extend the lifespan of a building’s roofing system. Here are some common commercial roofing problems that property managers should watch for.

ROOF LEAKS

Heavy rainfall is common in the Lower Mainland, making roof leaks a frequent issue. Leaks often stem from deteriorated membranes, cracked flashing, or improperly sealed seams. Left unchecked, water intrusion can lead to mold growth, interior damage, and structural weakening. Additionally, leaks can reduce energy efficiency as saturated insulation loses its effectiveness.

Prevention Tip: Schedule regular roof inspections, especially before and after the rainy season. Promptly address signs of water damage or pooling. Invest in high-quality sealants and waterproof membranes for enhanced protection.

PONDING WATER

Flat and low-slope roofs, common in commercial buildings, often experience ponding water due to clogged drains, poor drainage design, or sagging roof sections. If water remains stagnant for more than 48 hours, it can weaken roofing materials and cause premature deterioration. Long-term ponding may also encourage algae growth, further damaging the roof.

Prevention Tip: Ensure drainage systems, including gutters and downspouts, remain clear and functional. Regular maintenance and proper sloping can prevent water accumulation. Installing additional drains or roof crickets can also improve water flow.

MEMBRANE DAMAGE

Commercial roofing materials like TPO, EPDM, and PVC can suffer from punctures, cracks, and shrinkage due to UV exposure, temperature fluctuations, and foot traffic from maintenance personnel. These issues compromise the roof’s waterproofing and can lead to further structural problems.

Prevention Tip: Limit rooftop access to authorized personnel and use protective walkways to reduce wear. Inspect membranes regularly for damage and repair minor issues before they escalate.

FLASHING FAILURES

Flashing, which seals joints around vents, HVAC units, and other roof penetrations, can loosen or deteriorate over time. Water can seep through these gaps, causing leaks and interior damage. Poorly installed or aged flashing can also lead to heat loss, reducing building energy efficiency.

Prevention Tip: Include flashing inspections in routine maintenance checks and reseal or replace damaged flashing as needed. Use high-quality metal flashing and reinforced sealants for improved durability.

WIND & STORM DAMAGE

Strong winds and heavy rain can lift roofing materials, damage seams, or cause punctures. With the Lower Mainland’s unpredictable weather patterns, commercial roofs are vulnerable to wind-driven rain and storm damage. Severe weather can also displace loose debris, which may puncture the roof surface.

Prevention Tip: Use wind-resistant roofing materials and ensure seams and edges are securely fastened. Inspect for damage after severe weather events to address vulnerabilities promptly and maintain roof integrity.

MOLD & ALGAE GROWTH

Our damp coastal climate encourages the growth of mold, mildew, and algae, which can degrade roofing materials and pose health risks to building occupants. Algae can also create slippery surfaces, making rooftop maintenance hazardous.

Prevention Tip: Improve roof ventilation and consider algae-resistant roofing materials. Regular cleaning and treatment can help prevent organic growth.

THE IMPORTANCE OF REGULAR ROOF MAINTENANCE

For property managers in the Lower Mainland, proactive roof maintenance is key to avoiding costly repairs and prolonging the lifespan of commercial roofs. Partnering with a professional roofing contractor like Mountain West Roofing for regular inspections and preventative maintenance can save thousands in unexpected repair costs.

Need a commercial roofing inspection? If you manage commercial properties in the Lower Mainland and want to prevent roofing problems before they start, contact a trusted roofing expert today. By staying ahead of these common issues, property managers can protect their investments and ensure tenants remain safe and satisfied.

By staying ahead of these common roofing issues, property managers can protect their investments and ensure tenants remain safe and satisfied.

LOOK NO FURTHER THAN MOUNTAIN WEST ROOFING

Choosing Mountain West Roofing for your commercial roof inspection ensures expert, high-quality service tailored to your property’s needs. Customer satisfaction is our priority! We provide personalized solutions and responsive communication. Trust Mountain West Roofing to protect and enhance the value of your commercial property with our top-tier roofing services.

Ready to take your roofing system to the next level? Contact Mountain West Roofing today to learn more: 604-474-1185