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As a homeowner, one of your primary concerns is ensuring that your roof remains durable and reliable. Asphalt roof shingles are an excellent roofing material that has long been the popular choice for many homeowners in Ottawa. With their cost-effectiveness, versatility, and longevity, asphalt shingles have become a staple of residential roofing. We at Magnum Roofing are dedicated to providing our clients with the best asphalt roofing installations, repairs, and replacements at competitive prices in the Ottawa region. In this article, we will delve into the basics of asphalt shingles and their different types and walk you through the installation process.

Asphalt shingles are composed of a fibreglass or organic mat base that is saturated with asphalt, coated with granules made from minerals like silica, and fitted to the roof using nails or adhesive strips. They come in two primary types: three-tab shingles and architectural shingles. Three-tab shingles are known for their affordability and uniform appearance, making them a common choice for budget-conscious homeowners. Architectural shingles, on the other hand, have a multidimensional look thanks to their added thickness and heavier laminated construction, which also helps to extend their lifespan.

When it comes to the installation process, it is crucial to ensure that every step is meticulously followed to avoid future complications. Magnum Roofing has a team of skilled and experienced professionals who ensure that your asphalt roof installation is done with precision and care. We begin by preparing the roof deck, inspecting it for any damage, and ensuring a clean, dry, and structurally sound foundation. If necessary, a weather-resistant barrier is installed to safeguard your home from moisture ingress.

Why Asphalt Shingles Are So Popular

Asphalt shingles are well-regarded in the residential roofing industry due to their exceptional features. Here are some key reasons why homeowners in Ottawa consistently choose asphalt shingles for their roofing needs:

  1. Affordability: Asphalt shingles are among the most cost-effective roofing materials available on the market. Their relatively low cost makes them an attractive option for those looking to replace or repair their roofs without breaking the bank.
  2. Variety: Asphalt shingles come in an extensive range of colours, styles, and textures. This range of options allows homeowners to choose a roof that complements their home’s aesthetic, catering to individual preferences and adding to the property’s overall curb appeal.
  3. Durability: Asphalt shingles are known for their resistance to various weather conditions, including rain, snow, and extreme temperatures. With proper maintenance and care, they can last anywhere from 15 to 30 years, making them a practical investment for many homeowners.
  4. Easy installation and maintenance: One of the most appealing factors of asphalt shingles is their ease of installation and low maintenance requirements. With a skilled and experienced roofing team like ours, the installation process becomes even more efficient, further minimizing any disruptions to your daily routine.

Types of Asphalt Roof Shingles

The two primary types of asphalt shingles, as mentioned earlier, are three-tab and architectural shingles. While both have their advantages, it’s essential to understand the differences between them to make an informed decision for your home.

Three-Tab Shingles:

  1. Design: Three-tab shingles have a simple, flat appearance featuring rectangular cut-outs, giving them a uniform look across the roof.
  2. Lifespan: Three-tab shingles typically have a lifespan of 15 to 20 years, provided they are well-maintained.
  3. Cost: As one of the most affordable roofing materials on the market, three-tab shingles are often preferred by homeowners working on a tight budget.

Architectural Shingles:

  1. Design: Architectural shingles offer a more intricate, textured appearance, thanks to their extra layers of asphalt and granules. This layered construction gives the shingles a three-dimensional look that adds depth and character to the roof.
  2. Lifespan: Architectural shingles generally have a longer lifespan than three-tab shingles, ranging from 25 to 30 years with proper maintenance.
  3. Cost: While architectural shingles tend to be pricier than their three-tab counterparts, their additional benefits often outweigh the extra cost for homeowners seeking a roof that adds value to their property.

The Asphalt Shingle Installation Process

A step-by-step overview of our asphalt shingle installation process is as follows:

  1. Roof inspection: Before proceeding with the installation, our team conducts a thorough inspection of the roof to identify any existing issues or damages that could compromise the new roofing system.
  2. Deck preparation: Once the roof has been inspected and deemed suitable for installation, our team prepares the roof deck by clearing debris, ensuring it is structurally sound, and installing a weather-resistant barrier if needed.
  3. Starter strip installation: Starter strips are installed at the roof’s edge, providing the foundation for the shingle installation. These strips protect your roof against wind uplift and water infiltration, ensuring the longevity of your new shingles.
  4. Shingle installation: Finally, our skilled technicians install the chosen asphalt shingles according to the specified pattern, ensuring adherence to strict industry standards and best practices to deliver a high-quality, watertight result.

Maintaining Your Asphalt Shingle Roof

Since your roof is constantly exposed to the elements, it is vital to ensure that it remains in top condition. Regular maintenance goes a long way in maximizing the lifespan and performance of your asphalt shingles. Here are a few maintenance tips for your asphalt shingle roof:

  1. Regular inspections: Conduct twice-yearly inspections, preferably in the spring and autumn, to identify and address any potential issues before they become significant problems.
  2. Gutter cleaning: Ensure your gutters remain clear of debris to prevent water buildup, which can lead to moisture damage to your roof.
  3. Repairing damages promptly: Any damages or issues should be addressed as soon as possible. Contact a reputable roofing service like ours to ensure that repairs are executed professionally and effectively.


Asphalt shingles are an excellent roofing choice for homeowners in Ottawa, combining affordability, durability, and aesthetic appeal. At Magnum Roofing, we take pride in offering top-quality asphalt shingle installations, repairs, and replacements that meet your roofing needs and exceed your expectations. To discuss your residential asphalt roofing project and schedule a consultation with our experts, contact us today.