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Factors That Could Impact the Cost of A New Asphalt Roof

Factors That Could Impact the Cost of A New Asphalt Roof

Replacing a roof is a significant investment for homeowners, and understanding the factors that influence the cost is essential for effective planning and budgeting. From the choice of materials to the complexity of the project, various factors contribute to the overall cost of a new roof.

A lot of this can be hard for homeowners to understand first, as the only majorly visible part of the roof are the shingles or metal on top. But in reality there is so much more that goes into to a roof replacement, and thus a lot more that goes into the cost of getting one.

In this blog, we will explore the factors that affect a roof replacement cost, including:

Alright, let’s get into it!

Roofing Material Used

materials delivered_WebPThe choice of roofing material plays a significant role in determining the cost of a new roof. Different materials, such as asphalt shingles, metal panels, and slate tiles, vary in terms of price, durability, and aesthetics. Asphalt shingles are a popular and cost-effective option, while metal panels offer excellent longevity and energy efficiency. Slate tiles, although more expensive, provide a luxurious and timeless appearance. Consider your budget, climate, and desired aesthetic when selecting the roofing material that best suits your needs.

Level of Shingle Used

Even though we touched on shingles in the previous section, they are the most popular roofing material in this part of the world, so we figured we should give them slightly more attention than the other materials we talked about.Shingle Comparison Chart (Redone) Transparent

If you choose an asphalt shingle for your roofing material, there are three additional main categories that will create some different costs, depending on which one you choose.

The level of shingle chosen for your roof can also impact the overall cost. Three-tab shingles are the most affordable option, offering a basic level of protection. Architectural shingles, with their dimensional appearance and enhanced durability, come at a slightly higher price point. Luxury shingles, with their premium aesthetics and superior performance, tend to be the most expensive. Assess your budget and desired level of durability when deciding on the appropriate shingle level for your new roof.

Additional Roofing Materials

flashing_WebP-1Beyond the primary roofing material, additional materials contribute to the overall cost of a new roof. These include underlayment, flashing, and ventilation systems. Underlayment provides an added layer of protection against moisture and serves as a base for the roofing material. Flashing ensures proper water runoff and prevents leaks around roof penetrations. Ventilation systems promote airflow and extend the lifespan of the roof. While these materials add to the cost, they are crucial for the long-term durability and performance of your roof.

Size and Pitch

Steep roof_WebPThe size and pitch of your roof can impact both the complexity of the installation and the cost of the project. Larger roofs require more materials and labor, leading to increased expenses. Steeply pitched roofs pose challenges for installers, requiring additional safety measures and expertise. The size and pitch of your roof should be considered when estimating the cost of the replacement.

Roof Complexity

complex roof_WebPThe complexity of a roof, influenced by factors such as multiple angles, dormers, valleys, and unique architectural features, can significantly affect the cost of a replacement. A roof with intricate designs or complex structures requires more labor and time to install correctly. These complexities can increase the overall cost of the project. Discuss the specific details of your roof with your contractor to get a better understanding of how its complexity may impact the budget.


pipe w boot_WebPRoof penetrations, including chimneys, skylights, and vents, also impact the cost of a roof replacement. These features require additional materials, flashing, and precise installation techniques to ensure proper sealing and prevent leaks. The number and complexity of penetrations on your roof can affect the overall cost, as they contribute to the materials and labor required to complete the project.

Roof penetrations are the most common spot for leaks to appear on the roof, especially if the leaks pop up while the main roof shingles are still within their lifespan. Often, roofs with shingles advertised to last 25 years can spring a leak after only 10, because it was installed with a rubber pipe boot that is only designed to last that long. So not only will the number of penetrations affect the cost, but so too will the level of materials you chose to cover them, whether it is rubber, metal, or some other composite.

Integrity of the Roof Decking

bad roof decking_WebPThe condition of the underlying roof decking is a crucial factor that can impact the cost of a new roof. Damaged or rotten decking may require repairs or complete replacement. This additional work can add to the overall cost, as it involves the labor and materials needed to ensure a solid foundation for the new roofing system. Conduct a thorough inspection to assess the condition of your roof decking before budgeting for a replacement.

Multiple Layers of Shingles

two layers of shignles_WebPIf your existing roof has multiple layers of shingles, the cost of the replacement may increase. Removing and disposing of multiple layers requires more labor and time. Additionally, the additional weight of multiple layers can affect the structural integrity of the roof, potentially necessitating additional reinforcement. Understanding the number of existing layers will help you estimate the cost of the replacement accurately.

When planning a roof replacement, it is important to consider the various factors that influence the cost. The choice of roofing material, level of shingle, additional materials, size and pitch of the roof, complexity of the project, penetrations, integrity of the roof decking, and the presence of multiple layers of shingles all contribute to the overall expense. By understanding these factors, homeowners can make informed decisions, work within their budget, and ensure a successful roof replacement project that provides long-lasting protection and peace of mind. Consult with reputable roofing contractors to obtain accurate estimates and professional guidance tailored to your specific needs.

On Tops Roofing has been working through the replacement process with Raleigh NC homeowners since 1991! Whatever your roof requires, We’re on it!

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