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What is Flat Roofing?

March , 2023 | 7 min. read

By Kevin Mills

Envisioning how you want your house to look is a natural and fun part of home ownership! Thinking about what style you want, paint colors, and material types is one of the most exciting parts of obtaining a brand-new home. However, an overlooked part of the decision-making process is choosing a roof type. 

Contrary to popular belief, not every roof type fits on every home. Houses are complex, and each has specific needs that have to be met in order for them to function correctly. Flat Roof options are mainly used for commercial buildings, but some homeowners love the idea of having one right at home. There are specific considerations to think of if you're pondering this roof type. Flat roofs require more labor and materials than roofing types with steeper slopes, among other things. 

Here at RoofCrafters, we've installed flat roofs on homes of the Southeast for almost three decades. Though this roof type is more on the unique side for residential properties, they're stunning when installed on homes that meet all their requirements. 

This article discusses all you should know when considering flat roofs, from what they are to their benefits and drawbacks. Everything you need to know is covered right here! By the time you finish reading, you'll have a better understanding of this fun and exciting roof type. It could very well be your next roof choice! 

Flat Roofing: What You Should Know

 

One of the funny things about flat roofing is it isn't actually flat. This roof type is level to the eye but actually has a slight slope. As complicated as it may sound, it's actually super simple! More often seen on commercial buildings, this roof type is usually chosen by engineers and architects. There are options for residential properties, though!

flat-roof

As mentioned, flat roofs are part of the "low slope" roofing category because, contrary to popular belief, they do have a slope. It's tiny and close to being flat, but it's still there. 

Flat roofing is tricky in a few aspects, so it isn't for the homeowner who's looking for the simplest roof type to maintain and live under. If you're the owner of a flat roof, you may see by now that you're at a slight disadvantage. Because the roof is flat, it's hard for roofers to detect specific issues that may be really easy to spot on steeper roofs. That being said, there are several benefits to having a flat roof, especially when it comes to aesthetics. Flat roofing is known for being style-specific and sleek, but it isn't for every homeowner. If you do think you're ready to take on a flat roof, however, there's plenty you should know. 

There are three main types of flat roofing materials: 

  • Modified Bitumen (Modbit)
  • Single-ply (TPO, PVC, EPDM)
  • Built-up Roof (BUR)

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Modified Bitumen Roof

 

Modbit is sometimes referred to as the "second generation" flat roofing type. It's pretty common and became popular as an alternative to hot tar roofing, which is dangerous (and many roofers don't find it to be worth the risk.) Hot tar can still be used for Modbit, but it's typically installed by:

  • Cold Tar
  • Torch 
  • Self-Adherence 

This roof type has to be installed with multiple layers, which makes repairs and replacements difficult. Something to keep in mind with this option!

modified bitumen flat roofing

Single-ply Roof

 

Single-ply roofing is a popular option among residential and commercial property owners. They come in different thicknesses, and many find this option to be suitable for their project. This roof type is known to be flexible, sturdy, and ideal for protecting and covering flat roofing systems. 

single-ply roof

Built-up Roof

 

BUR roofing first peeked its head during the mid 1800s. It's a complex roofing system containing various asphalt layers between ply sheets. They're known for being durable and long-lasting!

BUR roof

The Pros of Flat Roofing 

 

There are many notable pros to flat roofing types! While it's easy to veer away from this option if you prefer to take more traditional routes, it has many positive characteristics worth thinking about. 

Affordable 

 

Flat roofing is an affordable option because installation isn't as complicated compared to other roof types with varying slopes and complexity. Affordability is essential for most homeowners right now, so choosing an option that won't break the bank is valuable. 

flat roof replacement by RoofCrafters

Extra Space

 

Are you thinking about incorporating a rooftop garden into your home? It's definitely an option with a flat roof. You'd be surprised what you could do with the extra roof space! With this roofing choice, you get more creative opportunities as a homeowner if you have the funds and resources. 

metal retro-fit insulation on a flat roof

Quicker Installation 

 

Compared to steeper pitched roofs, flat roofing takes less time to complete. A flat, plain structure means less equipment and materials that have to be used, depending on which option you pick. 

Image call to action, read the homeowners guide to roof replacement

The Cons of Flat Roofing

 

Flat roofing comes with drawbacks because of its structure, both aesthetically and functionality-wise. Keeping these in mind will help you decide whether you want to go this route. 

Not Stylish 

 

It's no secret that some flat roofs aren't the most pleasing to look at. Many view them as plain and boring because they only come in a few different colors. Though you can absolutely make yours stand out, some prefer to go with something other than this option. Nowadays, there are solutions to mend basic roofs with restoration services, however. 

flat roof work-1-1

Drainage Problems 

 

Because of their low slope, flat roofs don't drain as well as pitcher roofs. Water drainage issues can lead to even more significant problems like mold and rot. With flat roofs, anticipate puddling and ensure you stay on top of it. Hiring a professional roofer to help keep your roof up to par is essential, and they can help you come up with a plan to keep your roofing system functioning at its best. 

water pooled on roof

Am I Ready for A Flat Roof? 

 

We hope the answer is yes! When deciding on a brand new roof, you'll have to face a lot of decisions, but you need to start somewhere. Though it may seem like a lot all at once, the end result of your sparkling new roof makes everything worth it. Of course, always make sure you choose a roofing contractor that wants the best for you. If you want your roof done right, the person you choose to install it really matters! Check out our complete roofer checklist to help you determine the perfect roofing professional for your project. 

image call to action, download the top 10 checklist

And if you're ready to start the roof replacement process, RoofCrafters is more than excited to help you! The roof of your dreams is right at your fingertips. To get in touch with one of our friendly representatives, head on over to our contact page.

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Kevin Mills

My name is Kevin Mills, and I am the lead estimator for RoofCrafters’ Tampa division. I’m originally from Michigan, and I enjoy hunting, fishing, and spending any free time outdoors. What I’m most passionate about, though, is helping business owners and homeowners alike achieve their roofing goals, all while providing a seamless customer journey.