3 Important Things You Should Consider Before Hiring A Modified Bitumen Roofing Company

Modified Bitumen Roof

Selecting a roofing material for your commercial roofing system is not easy. You have to do a lot of research so that you pick a suitable material. If you look for these in the market, a modified bitumen roof is sure to cross your mind. With its roots set in the late 60’s, this is one of the oldest roofing systems globally and is still popular. If you have set your eyes on this kind of roof, then it is advisable to consider the following things so that you can make an informed decision.

What Is A Modified Bitumen Roof?

Modified bitumen roofs is made of asphalt, a black tar-like substance. Modified bitumen is a specific type of asphalt that has been treated or modified with chemical additives to make it more flexible and easier to apply.

Modified bitumen is commonly used for flat roofs, but it can also be used on sloped roofs. It’s an economical alternative to other types of roofing materials.

This type of roofing resembles another popular commercial roofing method called “built-up” or “BUR” roofing.

#1 Types Of Modified Bitumen Roof

There are two types of modified bitumen: atactic polypropylene (APP) and styrene butadiene styrene (SBS). The type you choose depends on the intended use of your roofing material. Let us take a look at both of these types individually.

Atactic Polypropylene

Atactic polypropylene (APP) is a modified bitumen that contains atactic polypropylene polymers. Due to the presence of these thermoplastic compounds,

these are installed with the help of a hot application method (commonly known as the torch-down method). To install an APP-modified bitumen roof, the contractor will use a flame torch to heat the material to get well attached to the roof. Atactic Polypropylene type is also called plastic modified bitumen as the asphalt gives a plastic-like appearance.

This type of modified bitumen is strong, flexible, and durable. It is easier to install than its counterpart when it comes to smaller roofing projects.

Styrene Butadiene Styrene 

Styrene-butadiene styrene (SBS) combines butadiene rubber with styrene compounds. This type of modified bitumen is flexible and resistant to cracking under pressure or impact damage. This SBS system is also known as elastic or rubber bitumen. Since it is made of rubbers, it has better durability and flexibility than other types. You can install SBS modified bitumen roof via the hot application method as well as with cold application and adhesive. This does not melt like APP, instead is very sticky in nature.

#2 What Are The Benefits Of Modified Bitumen

Before selecting the roofing material for your roof, whether it is for a residential or commercial property, it is important to take a look at the benefits offered by them. The more benefits a roofing material has, the better it is for you. A modified bitumen roof will offer you the following benefits.


One of the best things about a modified bitumen roofing system is that they’re surprisingly long-lasting. Their average lifespan varies between 20-30 years. However, this depends on other factors, such as the area you live in. This means that as a business owner, you would not have to worry about changing the roof often. Modified bitumen roofing is great for the harsh weather in Denver, CO. It can withstand high winds, heavy rain, and hail without any problems. The material is also highly flexible, so it won’t crack or break even when subjected to extreme temperatures.

Affordable Roofing

What do most people look for first while choosing a material for their commercial roof? The answer to this question is most likely to be the price. The material you choose should not be burning a hole in your pocket.

The cost of a modified bitumen roof is lower than built-up roofing because it requires less material and labor to install compared to other types of roofing materials. Moreover, the life expectancy of a modified bitumen roof is longer than most other types of roofs, so you will not have to repair or replace it as often. This can save you money over time.

Less Leak Prone

Modified bitumen is the perfect choice for your roof if you’re looking for a material that will last and protect your home from water damage.

A modified bitumen roof is made up of several individual layers that help in waterproofing the roof. Also, without any seams, you further reduce the risk of leaks.

Since it’s virtually waterproof, this means that instead of having to repair leaks regularly, you can rest easy knowing that your roof will be staying in good shape for years.

Energy Saving

Modified bitumen is an energy-efficient roofing material that will help keep your home warm in the winter and cool in the summer. You can convert your modified bitumen roof into a reflective, cool roof that will help to reduce the energy bills of your home or business property. How? A cool roof tends to reflect the sunlight better. This ensures that the area does not get warm during the summers.

#3 Components Of A Modified Bitumen Roof

In order to know more about roofing material, you should start knowing about how it is installed. In this following section, you will get to know more about the materials/components used in for a modified bitumen roofing system.

This type of roofing system usually comes in the form of rolls. Here are the other components.

  • Roof Substrate/Roof Decking
  • Insulation layer
  • Base coats’
  • Reinforcement Fabric
  • Modified Bitumen Roofing Membrane

Get The Best Modified Bitumen Roofing Services

In conclusion, if you want a roof that is cost-effective and efficient but also has many benefits to offer your home, then modified bitumen could be an excellent choice. But you should know that the installation of a modified bitumen roof is a bit tricky. This is because of multiple layers as well as methods. To avoid damage to your roof as well as yourself, it is better to hire the best professional roofing contractor in Denver: Sol Vista Roofing.

We offer high-quality modified bitumen roof installation services. You can call us at (720) 712-3516 and get the solution for all your commercial and residential roofing needs.