When choosing the best roofing material for your property, the decision may often boil down to two popular options – the flat roof and the shingle roof. Understanding the specifics of these roofing styles, including their advantages and potential drawbacks, can help you make an informed choice.
Understanding the Basics: Flat Roof vs. Shingle Roof
Let’s define these two roof types before delving into the more technical aspects.
As the name implies, a flat roof is nearly level in all respects. Flat roofs typically require specific roofing materials such as bitumen, PVC, or rubber membrane to ensure durability and weather resistance.
On the other hand, a shingle roof features an array of individual overlapping elements, usually rectangular and layered in courses from the bottom edge of the roof up. The most common roofing material for shingle roofs includes asphalt shingles, which are highly popular due to their affordability and durability.
Weighing the Roof Replacement Cost
The roof replacement cost is a significant factor when comparing a flat and shingle roof. While the actual cost can vary based on size, labor, and location, asphalt shingle roofs are less expensive than flat roofs. However, when considering the cost, it’s important to consider longevity and maintenance. While a new roof installation of shingles may be less expensive initially, the lifetime cost of a flat roof might be less due to its longer lifespan and reduced maintenance requirements. Other considerations may include any additional work required, such as repairs to the underlying structure or the removal of old roofing materials.

The lifespan of shingle roof and flat roof
The lifespan of shingle roofs and flat roofs can vary depending on different factors. Shingle roofs, made of asphalt or fiberglass shingles, usually last for 20 to 30 years. This can be affected by climate, maintenance, and installation quality. Harsh weather conditions like rain, wind, and hail can speed up shingle roof deterioration. Flat roofs, built with materials like EPDM rubber, PVC, or modified bitumen, typically last 15 to 30 years. The durability of a flat roof depends on material quality and regular maintenance. Good drainage and regular inspections can extend the lifespan of both roof types. It’s best to consult a roofing professional for specific insights on expected lifespan.
However, when considering the cost, it’s important to consider longevity and maintenance. While a new roof installation of shingles may be less expensive initially, the lifetime cost of a flat roof might be less due to its longer lifespan and reduced maintenance requirements.
Roof Installation: Flat Roof vs. Shingles Installed

The installation process varies significantly between a flat and a shingled roof. For flat roofs, installation generally involves rolling out the chosen roofing material and sealing it to create a waterproof barrier.
Shingle roofs, however, require more labor-intensive work, and each shingle must be installed individually, which can take longer. Additionally, extra attention must be paid to the layers underneath the shingles to prevent potential leaks. Ultimately, the decision between flat roofs and shingles depends on the aesthetic preference, budget, and specific requirements of the project.
Maintenance Matters: Roof Maintenance Considerations
Taking care of your roof is crucial when you own a property. For flat roofs, it’s important to inspect and clean them regularly to avoid debris buildup and potential damage. The advantage is that inspecting and maintaining flat roofs is usually easier because they don’t have a slope.
Maintaining shingled roofs may require more effort due to the individual shingles. Regular roof inspections are essential to identify any damaged or missing shingles and fix them quickly. However, the slope of shingled roofs allows for better drainage, which can help reduce certain maintenance requirements.
Choosing the Best Roofing System for Your Needs
Consider what you value most when deciding between a flat and shingle roof. A shingle roof might be better if you want a more traditional appearance. Shingle roofs include a variety of colors and styles, making them more aesthetically versatile.
However, a flat roof could be ideal if you prefer modern architecture or plan to utilize the roof space (like for a rooftop garden or solar panels). Flat roofs typically offer more usable space than shingled roofs.
Finally, while both roofs can offer excellent durability and protection, your area’s specific climate and weather conditions may make one a more suitable option. For instance, flat roofs are often more wind-resistant, while shingle roofs can provide better drainage in areas with heavy rainfall.

What Materials Are Good to Use on Flat Roofs?
When considering materials for flat roofs, there are several options that offer durability and effective waterproofing. One popular choice is ethylene propylene diene monomer (EPDM) rubber, known for its resilience against UV rays and weathering. Built-up roofing (BUR) consisting of multiple layers of tar and gravel provides excellent protection as well. Thermoplastic olefin (TPO) is another option, valued for its energy efficiency and heat-welded seams. Modified bitumen sheets, made from asphalt and rubber modifiers, also perform well due to their elasticity and strength. Each of these materials presents unique advantages, so the choice should be based on factors such as climate, budget, and desired longevity.
Conclusion: Flat Roof vs. Shingle Roof
Choosing between a flat roof and a shingle roof depends on various factors, such as the roof replacement cost, the best type of roof that suits your property style, the roofing material you prefer, and your maintenance capacity. Both options can provide excellent coverage, durability, and value for your property, making the decision a matter of personal preference and practical needs. Remember to conduct regular roof inspections and maintenance to keep whichever roof style you choose in top shape.