Metal Roof vs. Asphalt Shingles: How to Choose?

Whether you are renovating or building a new home, the roof plays a key role in protecting your house and ensuring its durability. In Quebec, weather conditions can be harsh: heavy snow, freeze-thaw cycles, intense rain, and strong winds place significant stress on roofing materials.

Asphalt shingles have long dominated the market because of their affordability and popularity. However, this material is not always comparable to metal when it comes to longevity and performance in Quebec’s specific climate.

With costs rising significantly, many homeowners are looking for solutions that are both durable and cost-effective. This makes the choice of roofing materials an important decision. Investing in a product designed to last at least 50 years can be far more beneficial than repeated roof replacements with cheaper materials. This makes the choice of roofing materials a critical decision.

This is where metal roofing stands out. Known for its strength, resistance to harsh weather, and long lifespan, up to three times longer than asphalt shingles, it is an appealing option for homeowners who want to get the most value from their investment.

Metal Roofing: A Sustainable Investment

Metal roofs include sheet metal, aluminum, and galvanized steel options. However, it is important to note that, like any product, metal roofing materials come in different levels of quality. For example, sheet metal does not provide the same performance as galvanized steel.

The experts at Toitures Metalavie^TM recommend hot-dip galvanized steel panels with a G90 zinc coating. This manufacturing process provides a higher level of protection, making the product especially strong and durable.

Asphalt Shingles: The Classic Choice

Asphalt shingles represent the most affordable option. However, this type of material usually needs to be replaced every 9 to 15 years, depending on the slope of the roof.

In the past, asphalt shingles were often of higher quality. Today, they are made from a mix of recycled cardboard soaked in oil, covered with fiberglass and artificial gravel. The materials used and the manufacturing process no longer provide the same level of durability, making them more vulnerable to rain, snow, and wind.

Metal vs. Asphalt: Which to Choose?

Choosing the right roofing material is not only about the initial price. It also means considering several factors, such as durability, weather resistance, maintenance, appearance, and environmental impact. Asphalt shingles and metal roofing are among the most common options for residential pitched roofs, but they have different characteristics.

Here is a detailed comparison of these two types of roofing:

Initial Cost and Lifespan

Shingles are cheaper to buy, with an average lifespan of 9 to 15 years, or up to 20 years at most. Metal roofs cost more upfront, but last at least 50 years, offering exceptional durability. Overall, metal roofs provide the best value for money.

Weather Resistance

Metal roofing is resilient against Quebec’s harsh climate. It can withstand extreme weather, such as snow, ice, strong winds, heavy rain, and hail. The products we use do not crack or warp and are highly impact-resistant.

Asphalt shingles, by contrast, are more vulnerable. Over time, they are prone to peeling, cracking and bending.

Maintenance

Shingles have less wind resistance and can develop moss in damp or shaded areas, or suffer from debris buildup. This may require replacing damaged shingles and performing occasional repairs. To prevent these issues, it is recommended to inspect your roof once or twice a year, remove any debris, and clear away snow.

One of the biggest advantages of metal roofs is their low maintenance. Thanks to the strength of the material and the installation process, the risk of lifting is significantly low, if not nonexistent. Unlike asphalt shingles, galvanized steel roofs are also protected against rust, which means there is no need to remove snow in winter.

Insulation and Energy Efficiency

A roof’s energy efficiency depends not only on the visible material but also on the type of membrane and insulation used. Choosing between a metal roof and asphalt shingles directly affects heat management in summer and overall performance in winter, an important consideration in Quebec.

A metal roof, especially when light-coloured or reflective, can help increase energy efficiency by reflecting more solar radiation. This keeps the attic cooler and can lower air conditioning needs during heat waves.

In winter, the key factor is the quality of the membrane beneath the visible material. A properly installed metal roof with high-performance insulation provides excellent waterproofing and reduces heat loss.

Aesthetics

Like asphalt shingles, metal roofing comes in a variety of colours to match any home style. However, metal offers more choices of style, texture, and finish, as well as a broader colour range. It also keeps a uniform and elegant look through the years.

Environmental Impact

The environmental footprint of an asphalt shingle roof is much higher than that of a metal roof. Shingles need to be replaced more often and are not recyclable, creating a lot of waste. Metal roofs, in contrast, are durable and made from 100% recyclable materials. Their long lifespan means fewer replacements and less waste overall, making them a more eco-friendly option.