The Pros And Cons Of Flat Roofing

The Pros And Cons Of Flat Roofing

Key Takeaways

  1. Flat roofs are low-sloped roofs with a minimal incline, offering multifunctional rooftop space.
  2. It’s a cheap and easy-to-install option that requires minimal material and equipment.
  3. Flat roofing is beneficial in arid climates and can serve as rooftop gardens, recreational areas, or to install solar panels.
  4. Flat roofing drawbacks include drainage issues, leakage risks, and difficulty maintaining temperature.

If you’re a new homeowner or want to renovate your house, you’re probably wondering which roof to install. Flat roofing is the most common option for most people as it’s aesthetically pleasing and easier to maintain. However, it does come with several drawbacks.

It’s crucial to make an informed decision and choose the ideal roof for your home, warehouse, or office. Make sure you compare the benefits and downsides of flat roofing before you make the final decision. We at CMC Roofing want our clients to be aware of their choices, so we have highlighted the pros and cons of flat roofing below.

What Is a Flat Roof?

Before outlining the pros and cons of a flat roof, it’s crucial to know what exactly flat roofing
means. A flat roof is a low-slope roof, meaning it will have fewer than 10 degrees incline.
They’re usually built with a minimal slope for drainage, so a flat roof won’t completely be flat.
Flat roofing is ideal for arid climates where the roof can serve as a multipurpose space. It’s the
most popular roof option for commercial outbuildings and residential buildings. People turn their
flat roofs into garden spaces or create extra storage or relaxation rooms.
Since it’s a low-slope roof, it holds snow or water for some time and requires different
construction materials to avoid leakage. Many flat roofing options are available in building
materials, like asphalt and synthetic rubber.

Pros of Flat Roofing

Flat roofing can prove highly beneficial under the right circumstances, as it’s a reliable and versatile option.

1. Cost-efficient

Flat roofing is the cheapest option for most homeowners due to the low cost of construction materials. Since flat roofs require less space, they utilize fewer materials than pitched roofs which cost thousands of dollars more.

A flat roof is the best option if your primary concern is saving on construction costs. The labor and maintenance costs are also low, with companies offering extended maintenance guarantees.

2. Easy Installation

Generally, flat roof installation is a time-saving process as it’s simple and easy to build. Compared to a pitched roof system, the flat roof is plain, requiring less equipment and fewer people to work. The process is also less disruptive, so you won’t have to worry about your daily life being disturbed.

Overall, flat roofing is a time-efficient option for someone who doesn’t want their life interrupted during construction. Pitched roofs require more materials and extensive work, which can take weeks to complete.

3. Multipurpose Area

The most significant advantage of flat roofing is using the rooftop space for various things. A flat roof is a perfect option if you want extra storage or recreational space in your house. Due to its versatility, you can turn your flat roof area into a rooftop garden or build a deck, patio or veranda.

Many people use their rooftops for eco-friendly purposes like greenery or installing solar panels. Apart from relaxation, you can also use the rooftop to place your HVAC units for protection from damage.

4. Aesthetically Pleasing

A flat roof looks beautiful when minimally decorated, and converting it into a recreational space makes it more appealing. Flat roofing also allows you to enjoy scenic views instead of relying on a balcony. Rooftop gardens are also a widespread use of flat roofs that are visually pleasing.

Cons of Flat Roofing

Despite all the flat roofing benefits, there are several drawbacks to a flat roof system that you should keep in mind.

1. Unreliable in Different Temperatures

Flat roofing can pose issues in cold or warm climates compared to sloped roofs. In colder areas, water and snow can easily pool on flat roofs, which can cause leaks. Consult a professional roofing service for weatherproof options before installing a flat roof.

In warmer climates, houses and office buildings can get hot fast as the flat roofs are exposed to the sun all day. On the other hand, you’ll have to spend more on central heating systems during the winter as the house can also get cold quickly.

2. Drainage Issues

With flat roofing systems, you need to consider the potential risks of inefficient drainage. Water drains faster on pitched roofs, but with a flat roof, water may accumulate for days if the roof isn’t properly planned.

For this reason, we recommend hiring a reliable roofing company to create a proper plan, including maintenance for your roof. This lets you know when there’s a problem and who to call.

3. Frequent Maintenance

One of the biggest drawbacks of flat roofing is that it needs maintenance more often than pitched roofs. Depending on the condition, flat roofs may have to be replaced every ten years. This is why many people switch to pitched roofing after a while.

To avoid major repairs or renovation, make sure you get your flat roof inspected regularly. Ifthere are any blocked drains, it can cause leakage problems fast. Therefore, proper and regularmaintenance is vital for a flat roof.


Flat roofing systems are a stylish and versatile design option for commercial buildings, offices and residential buildings. However, before installing a flat roof in your home, weigh the pros and cons. Making an informed decision makes you a smart buyer and saves time and money.

At CMC Roofing, we offer diverse roofing options, including flat roofing, metal roofing and more. Our expert team will help you build a durable and functional roof. We also provide reliable repairs and free inspection services. You can visit our website to book an appointment or contact us for more details.