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Tech is applying single membrane roofing a types of commercial roofing system for flat roofs

8 Types of Commercial Roofing Systems in 2022

New types of Commercial roofing systems and materials are quickly emerging and improving in terms of safety, strength, and cost. This blog post will explain the 10 most popular types of commercial roofing for flat roofs with their pros and cons.

So let’s begin!

 

Why do most Commercial Buildings have flat roofs?

 

Buildings can have either flat roofs or sloped roofs. Any roof having a pitch of fewer than 10 degrees is considered a flat roof, while any roof with a pitch higher than 10 degrees is a sloped roof. 

Both of these types have their benefits and problems. 

Mostly flat roofs are used in commercial buildings. It is the most used type of roof worldwide. Flat roofs have several advantages over sloped roofs. 

Flat roofs are inexpensive because they require less material due to less surface area than sloped roofs. It also results in more free space for rooms than the other types. Similarly, it is also suitable for roof gardens. The main problem with flat roofs is drainage,

 

Pros

  • Relatively Inexpensive
  • Requires Less Material
  • Suitable for roof gardens
  • Somewhat stronger than sloped roofs

 

Cons

  • Drainage Issues

8 Types of Commercial Roofing Systems & Materials for Flat Roofs

Let’s discuss the 8 common types of commercial roofing material for flat roofs. 

1- Metal Roofing

As the name suggests, metal roofing is made of metals and alloys such as copper, aluminum, tin, or steel. There are various types of metal roofing, such as sheets and tiles. The most significant advantage of metal roofing is its durability. They usually have a life of 50-100 years.  This is the most used among the types of Commercial Roofing Systems.

They are suitable for older buildings as they can support the building structure better than other types due to lightweight. 

 

Advantages 

  • They are lightweight 
  • They are better wind resistant 
  •  They are better heat resistant
  • They have enormous lifespans (50-100 years)
  • They are waterproof

 

Disadvantages

  •  Noisy during rain and hail

2- Shingle Roofing

 

Shingle Roofing is among the types of Commercial Roofing Systems that are mainly used in residential buildings in the USA, but it is also suitable for certain commercial buildings. Like metal roofing, shingle roofing has many types, such as Asphalt Shingle roofing, Wood Shingle Roofing, Stone Shingle Roofing, and many others. 

 Each of these types has its advantages and disadvantages. The main benefit of Asphalt shingle is its lower initial cost and straightforward installation process. Shingle roofing is relatively less durable, with a lifespan of 15-20 years only. They are especially susceptible to hail and fire, so make sure you choose a better quality Asphalt roofing. 

 

Advantages

  • The relatively low initial cost
  • Easy installation process
  • Energy Efficient as they are heat resistant
  • Recycling capability 

 

Disadvantages

  • Relatively less durable ( 15-20 years)

3- Polyurethane Foam Roofing (Spray Foam)

 

Polyurethane is another good option for commercial roofing types. They have a very long lifespan of around 50-years. This roofing system was initially developed in the 1960s; since then, it has been used in various parts of the world. 

Spray foam roofing has many benefits. It reduces energy costs due to insulating properties. It is also great noise resistant. It is also climate-friendly.

 

Advantages

  • Large lifespans of 50 years
  • Provides insulation from heating
  • Can save electricity cost 
  • It is a good noise insulator
  • Very Climate-friendly 
  • It provides a seamless roofing

 

Disadvantages

  • Installation requires suitable weather condition

4- PVC Single Membrane Roofing

 

Membrane roofing is another popular roofing technology that is very powerful for waterproofing. It uses different materials such as PVC or synthetic rubber to achieve a watertight covering of the ceiling. Here we will discuss the pros and cons of PVC ( Polyvinyl chloride )Single membrane roofing. 

 

Advantages

  • It can be easily installed
  • Relatively stronger than other membranes
  • It is a good weather-resistant
  • It is also good fire-resistant

 

Disadvantages

  • Not Easily reparable
  • UV rays harm the material

5- EPDM Single Membrane Roofing

 

EPDM is another single membrane roofing type. EPDM stands for Ethylene Propylene Diene Monomer, which is the same material used in the tire tubes. EPDM is the most used single membrane due to its low cost and easy setup. But EPDM has a shorter life span of 15-20 years only and has climate problems as well. It also heats up quickly. 

 

Advantages

  • Low cost
  • Easy Installation with anchors and glue 
  • Lesser Seams due to large size sheets
  • Light Weight of rubber

 

Disadvantages

  • Harmful UV Rays
  • Premature Separation due to glue
  • Quick Heating
  • Easily Punctured

6-TPO Single Membrane Roofing

two tech applying single ply membrane roofing a types of commercial roofing for flat roof
The technician doing single membrane roofing types of commercial roofing for flat roofs

 

It is another single membrane roofing system. TPO stands for Thermoplastic polyolefin, has stronger seams than other types, and they are heat reflective due to its white color. It requires a lot of skill and tools to install correctly. They last longer than 20 years but only have 15-20 years of warranties. 

 

Advantages

  • Strong seams 
  • Heat Reflection 

 

Disadvantages

  • High Installation Costs
  • Shrinking Issues

7- Green Roofing

 

Green Roofing and Single-Ply Membrane Roofing are closely related. The main difference is that in Green Roofing, the upper layers are covered with plants. This type of roofing is getting a lot of traction due to the impending climate crisis. Many businesses are adopting this type of roofing.

 

Advantages

  • Climate Friendly
  • Heat Resistant 

Disadvantage

  • Not suitable for all roofing materials

8-GRP and Fibre Glass

 

This is yet another roofing system for flat roofs in commercial settings. It is a fairly durable roofing system with a life of 30 years. They have a number of benefits over conventional membranes. Their biggest benefit is seamlessness which is a major problem with all single membrane roofing systems.

Advantages 

  • Low Maintenance Cost
  • Almost Seamless 
  • Relatively larger life spans 

Disadvantages 

  • Relatively Costly

FAQs

Now let’s answer some of the questions that you might have in your mind

What are the best commercial roofing materials?

These days the best commercial roofing materials are metal roofing and asphalt roofing. TPO and EPDM are also great options.

What are common roofing styles for commercial roofing?

For commercial roofing, now flat roofs have become a kind of standard. But sloped roofing of various pitches is also suitable in some industries. 

 

 

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