Adam Jardine • September 22, 2025
Average lifespan of asphalt shingles in New Brunswick
Homeowners often ask: how long do they last?
When homeowners in Fredericton search for a reliable roofing solution, asphalt shingles are the most common choice. They are affordable, durable, and well-suited for the climate in New Brunswick. But one of the most frequent questions asked is: What is the average lifespan of an asphalt shingle roof in Fredericton?
The short answer is that most asphalt shingle roofs last between 15 to 25 years. The exact lifespan depends on several factors:
Shingle Quality
Entry-level 3-tab shingles often last closer to 15 years, while architectural or laminated shingles can extend well beyond 20 years. Premium shingles, when properly installed, may approach the 30-year mark.
Climate Conditions in Fredericton
New Brunswick weather brings a full four-season cycle. Hot summers, cold winters, heavy snowfall, and freeze-thaw conditions all impact shingle performance. The roof’s exposure to sunlight, wind, and ice can shorten its service life if not properly maintained.
Roof Installation and Ventilation
Even the highest-quality shingles will fail early if a roof is poorly installed. Correct underlayment, flashing, and attic ventilation are critical to preventing heat buildup and moisture damage.
Roof Maintenance
Regular inspections, especially after storms, help identify missing shingles, damaged flashing, or clogged gutters. Preventative maintenance extends roof life and saves on costly repairs.
For Fredericton homeowners, a well-installed asphalt shingle roof that receives periodic care should be expected to last about 20 years on average. Roofs in shaded areas with good ventilation may last longer, while roofs exposed to strong sun or ice damming may fall short of that mark.
When to Consider Replacement
Signs that a roof is nearing the end of its lifespan include curling or cracked shingles, loss of granules, frequent leaks, and visible sagging. If your asphalt shingle roof is 15 years old or older, it’s wise to schedule a professional inspection to plan for replacement before major damage occurs.
Conclusion
The lifespan of asphalt shingles in Fredericton varies, but with the right materials, proper installation, and ongoing maintenance, homeowners can expect a reliable roof for about two decades. Investing in quality roofing now can provide peace of mind and protection for years to come.
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