Asphalt Roof Shingles – How to Successfully Complete Your Project

Thinking about redoing your roof and wondering why you should choose asphalt shingles or how to install them properly? This type of roofing has remained one of the most popular since it hit the market—and for good reason! Easy to install, affordable, and durable, it suits many types of buildings. In this article, we present the different options available and everything you need to know to successfully complete your project.

What are asphalt shingles?

Source : Les constructions BJM inc

A roof with asphalt shingles is a popular choice for protecting homes and buildings from the elements, especially in North America. Made from a base of either fiberglass or organic materials, coated with asphalt and topped with protective granules, asphalt shingles offer a durable and cost-effective solution. Known for their affordability, ease of installation, and ability to withstand varying weather conditions, they are a versatile option for both residential and commercial buildings.

Why choose asphalt shingles?

Advantages

Generally speaking, asphalt shingles have the advantage of being a readily available and affordable product. Moreover, there’s no denying that asphalt shingles are relatively easy to install, and their maintenance is minimal—usually limited to minor repairs and an annual inspection.

Disadvantages

Since they require the use of petroleum and the shingles produced are black, their presence tends to increase temperatures. Additionally, poorly installed shingles can lead to water infiltration and premature damage.

How to successfully complete your residential asphalt shingle roofing project?

Source : Construction Julien Dallaire inc.

The Different Types of Asphalt Roofing Shingles

Fibreglass Asphalt Shingle

As its name suggests, this shingle has a fibreglass membrane. Since it is not soaked in hot asphalt, the amount of asphalt required in its production is much lower. As a result, the fibreglass asphalt shingle is less expensive than its counterpart. It should be noted that the smaller amount of bitumen used in its manufacture is the main reason for this price difference. Moreover, fibreglass shingles are more heat-resistant and less prone to curling than their counterpart.

In terms of composition, the fibreglass asphalt shingle consists of three layers: granules, asphalt, and fibreglass.

Among its weaknesses, the fibreglass shingle has lower resistance to temperature fluctuations and harsh weather conditions. Additionally, it is more difficult to install in cold weather, specifically when temperatures are below 5°C. Due to these disadvantages, the fibreglass shingle is not the best choice for our climate. For this reason, the organic shingle is preferred.

Organic Asphalt Shingle

This is the original asphalt shingle, with a cellulose base soaked in hot, pressurized asphalt. Since this shingle is more flexible, it is easier to install in cold weather. Its weight is also a positive factor: as it is heavier than the fibreglass shingle, it tends to withstand storms better. Lastly, its resistance to temperature fluctuations is superior, and it better conceals imperfections.

How to choose between these two types of materials?

Recognizing that each option has its advantages and disadvantages, making a choice can be difficult. To make a final decision, you must consider the climate in which you live. Since the Quebec climate can be very harsh, the organic asphalt shingle is the best option due to its greater resistance to harsh weather and temperature fluctuations.

Note that fibreglass shingles are often offered with a less favourable warranty by manufacturers. Indeed, after the full coverage period, repair costs for fibreglass shingles may not be covered, unlike with organic shingles.

Installation Steps

Here are the general steps to install an asphalt shingle roof. Keep in mind that the process may vary depending on your climate, local building codes, and other factors.

1. Ensure safety measures: Before starting, use appropriate protective equipment such as a harness and guardrails. Ensure that the ladder is stable and that the weather conditions are suitable.

2. Remove the old roofing: Remove the old shingles and underlayment to inspect the roof decking. Replace any damaged sections to ensure a solid base for the new roof.

3. Install the drip edge: Attach a metal drip edge along the eaves and rakes to direct water into the gutters and prevent water infiltration.

4. Install the underlayment: Unroll the roofing underlayment starting from the eaves and working up to the ridge. This layer protects against moisture and improves waterproofing.

5. Apply the starter strip: Lay a starter strip or starter shingles along the eaves. This first row helps channel water off the roof and provides a uniform base for the following shingles.

6. Lay the shingles: Begin laying shingles at the bottom of the roof and progress horizontally. Overlap each row following the manufacturer's guidelines, securing them with the appropriate number of nails.

7. Install flashing around roof penetrations: Install flashing around chimneys, vents, skylights, and other roof penetrations to prevent water infiltration.

8. Install ridge shingles: Once all the shingles are in place, install ridge shingles at the top of the roof. These special shingles protect the ridge line from water and give the roof a finished look.

For more information, feel free to check out our article How to Lay Roof Shingles: 5 Steps.

Which professional to contact for asphalt shingle installation on your home?

To install asphalt shingles, it is recommended to contact a qualified roofing contractor. These professionals have the necessary expertise to ensure a durable installation that meets local standards. Before making your choice, request multiple quotes, check online reviews, and ensure the company is licensed and insured. You can also consult roofing specialty companies or renovation stores that offer installation services.

Doing the work yourself: Is it always a good idea?

Although doing the work yourself may seem like a way to save some money, it can lead to certain problems. While installing an asphalt shingle roof may seem easy from the outside, installing flashings, vents, or skylights requires special skill. A small mistake can result in parts of the roof that are not watertight, potentially causing water infiltration.

Additionally, you should be aware that the warranty may be voided if the work is not done by a professional. Therefore, it is better to hire a professional for your roofing renovation.

How Long Does It Take to Install an Asphalt Shingle Roof?

Installing an asphalt shingle roof on a medium-sized house typically takes 1 to 3 days. However, the duration can vary depending on several factors, such as the complexity of the roof, weather conditions, and the need to remove the old roofing. Larger homes or those with more complex designs may require a bit more time, especially if structural repairs are necessary.

What is the average cost of installing an asphalt shingle roof?

Source : Toiture Alextrême inc.

An asphalt shingle roof will typically cost between $3 and $9 per square foot, depending on the quality of the product. For a 3,000-square-foot roof, the cost generally ranges between $9,000 and $27,000.

For more details, be sure to read our article Cost of Roof Repair - How Much to Budget in 2025?

What are the available tiers?

In terms of quality, there are four tiers. These range from A to D, with C and D being the lower tiers. Naturally, the prices for higher tiers are significantly higher than those for the lower tiers.

Want a better idea of the price for your asphalt shingle roof? Use our price calculator!

How much area does a bundle of shingles cover?

This is a frequently asked question, and for good reason. Knowing the coverage of a bundle of shingles helps to anticipate how many bundles you'll need to purchase and avoid logistical and financial surprises. Typically, a bundle of shingles covers between 25 and 35 square feet. As a precaution, it is best to allow for a small surplus.

How to maintain an asphalt shingle roof?

Source : DK Toitures Inc.

To prevent premature degradation of your asphalt roof, perform an inspection once a year. This inspection should preferably take place at the end of winter. During this inspection, several aspects will require your attention, including the adhesion of the flashings, as well as the insulation and ventilation of the attic. Additionally, take this opportunity to ensure that no cracks are present.

For more information, feel free to check out our article Shingle Roof Maintenance: Ensuring Durability?

Warranty Issues Related to Roofing

If issues with your asphalt shingle roof arise from improper installation, the supplier will disclaim any responsibility. You would then be in a difficult situation, having to cover the cost yourself.

To minimize the potential for such situations, the Quebec Master Roofers Association (AMCQ) offers a solution. Once the installation is complete, an inspector can assess the quality of the work performed. If any imperfections are found, the association will contact the contractor to request necessary corrections. Once those corrections are made, the AMCQ will provide a 10-year warranty on the installation. It should be noted that an agreement regarding quality is made with the manufacturers, which simplifies the process if a claim needs to be made.

Regarding the warranty, it’s important to note that it is not always transferable from one owner to another. Therefore, it’s essential to inquire about this aspect when the installation takes place. Additionally, the coverage may reduce over time, which could end up costing you more in the long run.

When should you replace an asphalt shingle roof?

Source : LSCO

Signs That a  Renovation Is Necessary

Your roof protects you from the elements, but over time, it wears down and loses its effectiveness. Here are some signs that indicate it may be time to replace your roof:

• Damaged or missing shingles: If you notice cracked, curled, or missing shingles, this means your roof is no longer performing its role properly.

• Excessive granule loss: The small granules that cover shingles protect them from UV rays and moisture. If these granules accumulate in your gutters, it indicates advanced wear.

• Leaks or moisture traces: Stains on the ceiling, mold in the attic, or water infiltration after a rainstorm are signs that your roof is no longer watertight.

• Sagging roof: A roof that appears to sag or shows uneven areas may indicate a serious structural issue, such as rot or weakened supports.

• Damaged flashing: If the seals around chimneys, vents, or skylights are cracked or missing, water can easily infiltrate.

• Aging roof: The average lifespan of an asphalt shingle roof is about 20 years. If yours is approaching this limit, it’s better to anticipate replacement before major problems arise.

• Rising energy bills: Poor insulation caused by a worn-out roof can lead to an increase in heating and cooling costs.

If you notice several of these signs, it may be time to call a professional for an inspection. Early replacement can save you from costly repairs and ensure the safety of your home.

What is the Best Time to Install an Asphalt Shingle Roof?

Fall is the ideal season for installing an asphalt roof, as the moderate temperatures allow the shingles to adhere properly to the surface without the risk of softening due to heat or weakening from the cold. Additionally, weather conditions are generally more stable, with fewer heavy rains or storms that could delay the work.

How long do asphalt roof shingles last?

Available in a wide range of styles, this type of roofing offers a fairly respectable lifespan of approximately 20 years.

In Conclusion

Opting for an asphalt shingle roof is a wise choice due to its excellent cost-benefit ratio, ease of installation, and durability. However, to maximize its longevity and avoid future issues, it is essential to choose the right type of shingle based on the climate, ensure proper installation according to standards, and perform regular maintenance.

Here are some key recommendations for successfully completing your project:

• Choose the right type of shingle: Opt for organic shingles if you live in an area with harsh climates.

• Hire a professional: Proper installation is crucial to prevent water infiltration and maintain the manufacturer's warranty.

• Maintain your roof: An annual inspection helps detect wear early and allows you to address issues before major repairs are needed.

• Plan your budget: The cost of a shingle roof varies based on quality and size. Use a price calculator to estimate your project.

By following these tips, you’ll ensure a high-performing, durable roof that will protect your home for years to come.

Looking for more information on roofing? Check out our Roofing Renovation Guide.

Want to learn more about different roofing materials? Read our article Which type of roofing material will best suit your home's needs?