Roofing Edmonton | Is It Cheaper To Shingle Over An Existing Roof?

When it’s time for a roof replacement, homeowners often wonder if it’s a good idea to shingle over an existing roof rather than conducting a full tear-off. Shingling over an existing roof can save time and money, but it also comes with potential drawbacks says roofing Edmonton company Brown’s Roofing. In this article, we will explore the pros and cons of shingling over an existing roof to help you make an informed decision for your roofing project.

The Process of Shingling Over an Existing Roof

Shingling over an existing roof involves installing a new layer of roofing shingles directly on top of the old ones. The process typically starts with a thorough inspection of the existing roof to ensure it is in good condition and suitable for the overlay. If there are any signs of structural issues, water damage, or rot, shingling over should not be considered.

Pros of Shingling Over an Existing Roof

  1. Save Money
  2. Save Time
  3. Minimize Disruptions
  4. Additional Insulation

Cost Savings

Shingling over an existing roof can be more cost-effective than a complete tear-off because it reduces labor and disposal costs associated with removing the old shingles.

Time Efficiency

Shingling over an existing roof is faster than tearing the old roof off first. That means your house will be protected quickly, and you will get back to your regular routine fast.

Minimal Disruption

When new shingles are installed over the existing roof, there is less work that needs to be done. The result is less noise, minimal construction debris and minimal inconvenience to your  life during installation.

Added Insulation

An additional layer of shingles can provide some extra insulation, potentially improving energy efficiency. Since most homes have a lot of heat escaping through the roof, says roofing Edmonton experts, this can be beneficial, especially during our long, cold winters.

Roofing Edmonton | Cons of Shingling Over an Existing Roof

  1. Heavier Load on Your Roof
  2. Shorter Shingle Lifespan
  3. Hides Important Issues
  4. Potentially Void Shingle Warranty
  5. Negatively Affect Roof Ventilation

Weight and Load-Bearing Capacity

Adding another layer of shingles increases the weight on the roof. It’s essential to ensure that the structure can handle the additional load. In some cases, building codes may limit the number of shingle layers allowed. It should also be taken into consideration, especially in Edmonton, where the snowfall during winter can add up quickly. Combine that with the additional weight of a re-shingle, and your roof may suffer.

Shortened Lifespan

Shingling over an existing roof may reduce the new shingles’ overall lifespan. The underlying old shingles can transfer heat, leading to premature deterioration of the new layer.

Hidden Issues

By shingling over, underlying problems like rot, leaks, or damaged decking might go unnoticed and worsen over time. These types of problems, when not fixed lead to bigger problems that become more expensive to repair in the future. Roofing Edmonton company Brown’s Roofing explains that typically, you will end up paying more for repairs than you would for a new roof in the first place. And then you will need a new roof much sooner than you would have, if you just got a new roof in the beginning. Rather than last upwards of 75 years, a shingled over roof lasts on average 15 to 18 years.

Appearance and Warranty

Shingling over can create an uneven surface and may affect the appearance of the new roof. Additionally, many shingle manufacturers’ warranties may be voided if new shingles are installed over old ones. The roofing Edmonton company may also choose to not guarantee the work done on a re-shingle, while they will be willing to come back and fix things if their work on a new roof is guaranteed, which will be worth more than you potentially save on a re-shingle.

Roof Ventilation

Shingling over can impact roof ventilation, potentially leading to moisture buildup and reduced energy efficiency. And while one of the benefits of shingling over is added insulation, the numbers simply don’t add up to a win here says roofing Edmonton expert Lyle of Brown’s Roofing.

A New Roof Is Worth the Cost

Shingling over an existing roof can be a viable option under certain circumstances, especially if the existing roof is in good condition, the local building codes permit it, and budget constraints are a significant concern. However, it is crucial to weigh the pros and cons carefully before making this important decision. Roofs ultimately protect your belongings, but most importantly protect your family, keeping them dry and safe from the elements, your family is worth protecting properly.

For optimal long-term results and to avoid potential issues, a complete tear-off and replacement of the roof is generally recommended. This allows for a thorough inspection of the roof deck, identification and resolution of any underlying problems, and the installation of a new roofing system that can provide full manufacturer warranties and optimal performance. Many reputable roofing Edmonton companies won’t shingle over, because you will not end up with the best end product.

Contact The Experts In Edmonton

Before proceeding with any roofing project, consult with a reputable roofing Edmonton company like Brown’s Roofing. They can assess your specific situation and provide professional advice tailored to your home’s needs. Remember, a well-installed and maintained roof is crucial for the overall protection and value of your property. Contact Brown’s Roofing today for a no-obligation quote!