shingle roof

How Long Does It Last: Average Lifespan of Shingle Roofs

As one of the most popular roofing options on the market, shingle roofs can provide a great return on your investment due to their long-term durability and relatively low cost of materials. 

It’s not uncommon for shingle roofs to have a life expectancy of around 20-50 years, depending on the type of shingles, quality, grade of installation, and environmental conditions.

In this article, we’ll discuss the different types of shingles, their average life expectancy, and the key factors that can influence the longevity of your shingle roof.

Types of Shingle Roofs

When it comes to shingle roofs, there are three main types of shingles available: asphalt, wood, and slate. Asphalt shingles are the most common choice, as they’re economical and durable in most weather conditions. They come in various colours and styles and are rated for different wind speeds and hail resistance.

Wood shingles are aesthetically pleasing but are less durable or wind-resistant. Finally, slate shingles remain popular due to their outstanding durability and distinctive appearance. However, they’re very expensive, so they are usually only used for high-end residential and commercial buildings.

Average Life Expectancy

The average life expectancy of a shingle roof varies depending on the type of shingle used, but in general, it is around 20-50 years. 

Asphalt shingles tend to have a longer lifespan than wood shingles and last between 20-40 years. In contrast, slate shingles will often last over 50 years with proper maintenance.

Factors That Affect Life Expectancy

The life expectancy of a shingle roof depends on various factors, including quality of installation, environmental conditions, quality of shingles, and local climate. Poor installation can lead to leaks and severe damage, reducing the roof’s life expectancy. 

Similarly, extreme weather conditions (such as hail, snow, high winds, and heavy rainfall) can cause damage to the roof and its structural integrity, reducing its life expectancy.

Finally, the quality and grade of the shingles you choose can also make a difference. For example, higher-grade, impact-resistant shingles offer superior protection against hail and wind damage and are more likely to last longer than lower-grade shingles.


Regular maintenance is one of the best ways to maximize your shingle roof’s life expectancy. Routine inspections, cleaning, and repairs should be conducted at least once a year to ensure your roof is safe and sound.

Inspections should identify any missing or cracked shingles, and repairs should be made promptly to ensure further damage doesn’t occur. Regular cleaning is also essential, as debris and leaves can cause moisture buildup on your roof, leading to decay and mould growth.


Overall, shingle roofs offer homeowners an economical and durable option with a life expectancy of around 20-50 years. 

The type of shingle you choose, the quality of installation, and environmental conditions can all affect the longevity of your roof, so it’s essential to keep these factors in mind when selecting the right shingle and grade of installation. Regular maintenance and inspections should also be performed to ensure your shingle roof remains in optimal condition.

If you require reliable roofing services in Saskatoon, Wilderness Roofing is one of the leading roofing companies in the area. Our experienced team of certified workers is available to make your home look new again. Contact us now!

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