When you’re investing in a new roof, one of the first questions many homeowners ask is: how long will it actually last? Asphalt-shingle roofs are common in our area, but their lifespan depends on several factors beyond the material itself. Here’s a clear look at what to expect and what you can do to get the most out of your roof.

What’s the typical lifespan of asphalt shingles?

Here are the general numbers backed by industry data:

• Basic three‐tab asphalt shingles (the more economical option) tend to last about 15–20 years under real-world conditions.
• Architectural (or “dimensional”) asphalt shingles, which are thicker and more durable, are commonly used to add curb appeal and typically last 20–30 years, with 25 years being a realistic average lifespan.
• Premium asphalt shingles (designer lines, heavier weight) may be rated for longer periods, but achieving 30+ years requires ongoing maintenance.

So in our Vancouver / Lower Mainland climate, you might reasonably expect an asphalt roof to last around 20–25 years, assuming it’s properly installed by our team and well maintained.

Why do the numbers vary so much?

Several key factors determine how long a roof will last:

1. Quality of materials

Not all asphalt shingles are created equal. A lower‐cost three‐tab shingle has less material and fewer performance features than a premium product. The heavier, higher-grade shingles will generally outlast the lighter ones.

2. Installation & ventilation

Even the best shingles won’t perform well if they’re poorly installed. Proper underlayment, correct nailing, adequate attic ventilation, flashing done right, these all impact the lifespan of your asphalt roof. For example, roofs that are “tight” but lack ventilation can trap heat + moisture and age faster. That’s why hiring the right roofing company will make a world of difference.

3. Climate & exposure

Homes in harsh weather zones or with lots of sun, wind, or temperature swings tend to see shorter roof lifespans. In Florida, for instance, asphalt roofs might only last 15–20 years. In cooler moderate climates like ours in Metro Vancouver, you have an advantage, but still face wind, rain, moss, and other moisture‐related issues, which could ultimately impact the lifespan of your roof.

4. Maintenance

Regular upkeep helps prolong your roof. Clearing gutters, trimming overhanging tree branches, removing moss or debris, and checking for loose or missing shingles all add up. Maintenance can extend the life of your roof.

5. Roof design & attic conditions

When you’ve got complex rooflines, lots of valleys or dormers, steep slopes, or poor attic insulation/venting, it can add stress to your roof. A simple, well-vented roof will last longer.

What signs indicate your roof is nearing the end of its life?

Here are some warning flags to watch for:

• Shingles that are curling, buckling, or lifting at the edges.
• A lot of granule loss (you’ll often see granules in the gutters or downspouts).
• Dark patches, moss or algae growth, especially in shaded parts of the roof.
• Leaks, water stains inside your home, or sagging roof areas.
• Your roof is approaching or past the 20‐year mark and hasn’t had a major assessment or tune‐up.

If you notice these, it’s wise to call in a professional roofer like us at Canuck Roofing for a condition assessment and to plan for eventual replacement.

How to get the most out of your asphalt roof (20+ years)

Here are practical tips:

• Choose higher‐quality shingles if your budget allows for it. This way, you only invest once and avoid early replacement down the line.
• Ensure high-quality installation using a reputable roofing company. Roofers need to install all proper underlay, ventilation, and flashing, and ensure workmanship is of high caliber. Check out this blog post on What Questions to Ask Your Roofing Contractor before Hiring Them to help you with this process.
• Schedule periodic assessments every few years (and after big storms).
• Keep gutters clean and remove debris regularly.
• Trim back overhanging trees and remove moss/leaves from roof surfaces.
• Insulate and ventilate your attic properly; less heat and moisture buildup equals less stress on shingles.
• Consider proactive repairs for minor damage rather than waiting for major failure.

Why Choose Canuck Roofing?

We work with homeowners in and around Vancouver who need reliable roofing solutions. Here’s what we bring to the table:

• Skilled crews who specialise in asphalt‐shingle roofing and understand local climate demands.
• Use of quality materials that meet or exceed industry standards for durability.
• Full assessment services: we assess existing roofs, identify weak spots, and advise on the timing of replacement.
• Clear, professional communication, we explain what we find and what you should do next, without fluff.
• Local service means we’re familiar with how rain, wind, moss and tree cover impact roofs in our region.
• Award-winning service and safety compliance, check out our accolades here: https://canuckroofing.ca/about-us/

An asphalt roof is a great choice for many homes, and with good materials, proper installation, and regular care, you can reasonably expect 20 to 25 years of life out of your roof (sometimes more) in the Vancouver area. However, no roof lasts forever. The sooner you plan for replacements and monitor their condition, the better you’ll protect your home and your budget.

We’ve put together a downloadable checklist for homeowners on “Roof Age & Condition – What to Inspect Every 5 Years”. Download here: https://canuckroofing.ca/wp-content/uploads/2025/12/Canuck_Roofing_Roof_Assessment_Checklist.pdf