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Modified Bitumen Roof

Dallas Roofing Company, Emery roofing is a full-service roofing contractor that specializes in commercial and residential roofing across the greater Dallas and Fort Worth area.

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Modified Bitumen Roof
Commercial Roofing

More than half a century after its inception, modified bitumen roofing has transformed from cutting-edge innovation to a standard for commercial buildings across the globe. There are millions of projects worldwide where the modified bitumen roof is the roofing material of choice because of its tensile strength, longevity, and relative ease of installation.

So, if you search for a modified bitumen roofing installer in Dallas, TX, Emery roofing is the full roofing service provider specializing in commercial roofing. Contact us today and get a top-notch service.

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What are the Properties of
Modified Bitumen Roof?

When it comes to roofing systems, Modified Bitumen (MB) is an asphalt-based system that is quite similar to Built-up Roofing (BUR), but it is specifically developed for buildings with low-slope roofs. First introduced in Europe in the mid-’60s, modified bitumen roofing has been employed in the United States since the mid-’70s. Durability is built into this roofing system by the use of a five-layer structure that includes:

  • Insulation: This material provides thermal resistance as well as temperature stability.
  • MB Membranes: These membranes are made of copolymers reinforced with polyester or fiberglass.
  • Fiberglass sheet: The modified fiberglass foundation sheets are coated with MB asphalt, a modified version of MB asphalt.
  • Adhesive: This waterproofing material’s hot or cold application can be achieved using an adhesive and a bonding agent.
  • Top surface: The MB roofing system’s surface enhances weather resistance and UV protection.

The modified bitumen is made from asphalt and polymer blends that have been changed.

Hail Damage / Storm Damage / Roof Repaired

What Is the Lifespan of a
Modified Bitumen Roof?

The lifespan of a modified bitumen roof is affected by a wide range of variables, including the house’s location, the level of upkeep, and the design of the house itself. According to manufacturers, rolling membrane roofing is expected to endure at least 20 years. But the reverse is the case in some other places.

A house near the ocean, for example, may be subject to high winds. On the other side, a home surrounded by vegetation may necessitate regular upkeep to prevent vegetation from growing on the roof. Finally, a steeper roof slope may be more effective at directing water away from the building.

The Benefits of a Modified Bitumen Roof

More layers and thickness
In most cases, at least two “plies” of modified bitumen systems are used in the installation. Modified-bitumen roofing systems are the most popular due to their inherent thickness. The thickness of a two-ply mod-bit system with a granulated cap sheet is typically 240 MILS. An average single-ply thermoplastic roof membrane has a thickness of 60 MIL. Because of its inherent thickness, modified bitumen is the clear winner for membrane thickness.
Extremely long-lasting even in highly trafficked locations
Modified bitumen roofing membranes on low slope roofs should be considered if there is a lot of foot activity. If you are looking for a classic roof membrane that can handle foot traffic, this is the one for you. Even though flat rooftops should never be used as a patio or a work platform, this is precisely what many people do. Foot traffic is less likely to cause damage to modified granulated cap sheets than other systems.
It’s easy to use in confined situations
Modified bitumen is a powerhouse in cities due to its 36-39″ rolls. Compared to the 10′ to 12′ rolls of thermoplastics, this is easier to handle. Modified bitumen is an excellent choice in confined spaces, such as balconies or rooftops of three-story buildings.
Suitable for asphalt-based roofing materials
Although it may seem unusual, most maintenance workers have no knowledge of which products are suitable with which roof systems. The average building engineer will use “wet patch” or “roofing cement,” depending on the severity of the leak. Single-ply systems cannot use these materials since they are designed for modified bitumen, not asphalt. Although it may appear simple, a modified bitumen roof may often be repaired with standard roofing products.

The Drawbacks of Modified Bitumen Roofing

Assists in retaining heat in summer
All products, including modified bitumen roofing, have their own set of drawbacks. Modified bitumen roofing membranes are available in various colors and degrees of opacity. Instead of reflecting sunlight away from the building, the dark tone of the rooftop draws and absorbs the solar heat. And this can alleviate cooling bills in the summer.
Torch down

The most prevalent application methods still carry a more prominent risk than single-ply systems.

“Torch down” is the most popular adhesion form for modified bitumen. The back of the membrane is heated and adhered to the substrate using a propane-fueled, high BTU roofing torch. Over the last three decades, the industry has shifted from using high-heat application methods. These days, it’s unusual to see a tar kettle from the olden days. The inherent dangers of applying modified bitumen at high temperatures need roofers to be professionally certified and well-versed in their use.

Additionally, mod bits may be more costly

While a single-ply mod-bit cap sheet is costly for re-covering an existing modified roof, applying more than one ply increases the cost. If you use a two- or three-ply roofing system, you’re covering the roof twice or three times. Also, thermoplastics excel in terms of installation speed. Larger roofs necessitate more expensive multi-ply mod-bit systems.

It is more susceptible to ponding than thermoplastics
A modified bitumen roofing system will shorten the lifespan of a building’s roof if it tends to collect rainfall or snowmelt. Rainstorm-induced puddles and standing water may cause damage to and premature aging of a modified bitumen roofing system. Water should drain off a roof in 48 hours or less if the conditions are favorable for drying. Although, it is common for older roofs to be poorly drained. Standing water is a problem for modified bitumen plies and seams, which are inferior to their thermoplastic counterparts.

Why Contact Us

Our roofing contractors are the best in the business, providing a totally open, transparent and friendly service from start to finish. Hail storms are unpleasant enough on their own without damaging our homes. We know how we would want to be treated if we were looking for a hail damage roof service, and that’s how we treat our customers and how our contractors treat their work. Our service absolutely puts your needs at the heart of everything it does.

For hail damage roof repairs, whether structural or cosmetic, and hail damage insurance claims, we are the number one service in the area. Try out one of our free inspections, if your roof was damaged by hail and you’ve been unsure of what to do about the problem. It’s free, what do you have to lose? Having a hail damaged roof can weigh heavily on you, and our friendly service aims, first and foremost, to put your mind at ease. Knowing exactly what needs to be repaired, however much it might cost, is far better than not knowing at all. Our service is affordable and premium; you won’t find better hail damage roofing contractors for a better price in the area.

Roofing For You

The Dallas Roofing
Company you can Trust

If you’re interested in learning more about the many benefits of a modified bitumen roofing system, contact Emery roofing for superior roof replacement services. Our experienced commercial roofers can assist you in determining if a modified bitumen roofing membrane is the right choice for your property. It is a great pleasure to help commercial establishments in and around the Dallas, TX, area.

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