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Comparing The Lifespan Of Flat Roofs Versus Pitched Roofs
April 5, 2023
Royal Roofing

When it comes to roofing, one of the critical decisions that building owners or homeowners have to make is choosing the type of roof to install. Flat roofs and pitched roofs are two common types of roofing, and each has its unique advantages and disadvantages. Regardless of the type of roof you choose, it’s essential to ensure proper installation and regular maintenance by an expert roofer to extend its lifespan and avoid costly repairs. In this article, we will compare the lifespan of flat roofs versus pitched roofs and provide insights to help you make an informed decision.

Lifespan of Flat Roofs

Flat roofs have a shorter lifespan compared to pitched roofs. Typically, the lifespan of a flat roof is around 15 to 20 years. However, this lifespan can be extended through regular maintenance and proper installation. One of the primary factors that affect the lifespan of flat roofs is standing water. Flat roofs tend to accumulate water, which can lead to leaks and other problems.

Lifespan of Pitched Roofs

Pitched roofs have a longer lifespan compared to flat roofs. The lifespan of a pitched roof depends on the material used. For instance, asphalt shingles have a lifespan of around 15 to 30 years, while metal roofs can last for up to 50 years or more. Slate and tile roofs have the longest lifespan, with some lasting for over 100 years. Pitched roofs are also less prone to leaks and other issues since water can easily run off the roof.

Maintenance Requirements

Both flat roofs and pitched roofs require regular maintenance to extend their lifespan. Flat roofs require more maintenance than pitched roofs due to the accumulation of water. Regular inspection and cleaning of the roof are essential to ensure that the drainage system is functioning correctly. Pitched roofs require less maintenance, but they still require periodic inspection and repairs, especially after severe weather events.

Cost Considerations

The cost of installation for flat roofs is generally lower compared to pitched roofs due to the reduced complexity of installation. However, the cost of maintenance and repairs for flat roofs is typically higher, which can make them more expensive in the long run.

Climate Considerations

The climate also plays a significant role in determining the lifespan of a roof. Flat roofs are more suitable for warm and dry climates since they are prone to water accumulation. In areas with heavy rainfall or snow, pitched roofs are more suitable since they allow water to run off the roof easily.


In conclusion, when it comes to the lifespan of flat roofs versus pitched roofs, pitched roofs are the clear winner. They have a longer lifespan, require less maintenance, and are better suited to withstand severe weather conditions. However, flat roofs are still a viable option, especially for commercial buildings or in warm and dry climates.

We at 118-35 Queens Blvd Forest Hills, NY 11375 (718) 414-6067  https://www.nycrenovators.com have a team of professionals to handle your roofing repairs or installation for you

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