According to Building Enclosure, even though the traditional low slope roofing is seen as durable, the methods used in their installation utilize torch welding and mopped asphalt. Doing this comes up with safety issues and increased application constraints. As a result, such may increase the time one spends on the site, creating problems for workers, and this may result in increased insurance costs. Again, the traditional installation methods may generate fumes leading to the client’s discomfort.

Having worked with both conventional and modern roofing systems, our professional roofers agree that going with modified bitumen is way better than the traditional option.

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Modified Bitumen Roofing System

A self-adhered modified roof system provides roofing contractors with a quick and clean alternative to those installed through traditional means. For a fraction of workforce, time, labor, or training, and if installed in the right manner, the self-adhered systems may deliver long-lasting protection –all these happen without the hassle, fumes, mess, or extra safety risks. 

The products are available in different options and with benefits like fire resistance, uplift resistance, and color roof surface options—self-adhered products are known to be versatile to accommodate almost all low slope roofing projects

This is a picture of a modified bitumen roofing system.

Pros of Modified Bitumen Roofing

Meets the Building Codes

When dealing with commercial roofing applications, it is critical to consider the needs and building code requirements of the state and local government. The new building regulations and codes currently call for self-adhering products because of the environmentally friendly installation. 

Easy to Install

Installation of the modified bitumen SBS roofing systems can be done quickly with little destruction of clients who may be working in the building under repair. Such makes it the right choice for roofing projects that include rentals, schools, restaurants, offices, care facilities, hotels, hospitals, and multiple structures where client comfort is important.

Less Costly

Modified Bitumen is less costly in comparison to most roofing systems. It’s also easy to install and requires a small workforce to get things going. These, plus the long term benefits of good health, and fire resistance makes it an attractive option for roofing.

This is a picture of a modified bitumen.

Self-adhered Versus TPO, Single-ply Roofing?

Roofing is a dynamic industry and no product can perfectly fit. Some people prefer single-ply roofing (made of single synthetics layer and reinforcing scrim which may be used in covering flat roofs) to avoid the shortcomings of self-adhered roofs. 

  • A research done in Canada says the self-adhered products are majorly seen as unwanted in situations where temperatures can drop below 40 F. However, some manufacturers have come up with a solution to this issue: the hot air welder use along with details and seams which permit year-round installation in different climate zones. 
  • Some installers have less understanding of self-adhered roof covers and at times, the roof system integrity issues may occur in case the product is not properly installed. Installation without following the specifications of the manufacturer leads to poor results. It is therefore important to hire qualified roofers for the job if you are in serious doubts and risk doing a shoddy job. 
  • Self-adhered products in extreme heat may be challenging to handle, mostly for the inexperienced or less experienced contractor since its tack is known to increase with years and if misplaced initially, it may cause damage.

Learn About Modified Bitumen SBS Roofing Systems

Installing a low slope roof installation is not necessarily a complicated task. A professional roofer equipped with general tools can do it. However, there are specialized considerations before installation of self-adhered modified Bitumen roofing:

  • Caulk gun to apply adhesives
  • A weighted roller to press the membrane into place
  • Seam probing tool to examine the small voids
  • Right trowel to apply adhesive to the flashing details

If the weather is cold you will need:

To use a hot air welder as a replacement for trowel (if application instructions from the manufacturer recommend so). 

In case you prefer priming, you will need:

A long-handled roller with a measurement of 1/8″-1/4″ nap to apply primer (1/4″ nap for extended porous surface, and 1/8″ nap necessary for smooth surfaces).

The general rule when it comes to residential applications is simple: the self-adhered roofing needs to be applied only on the plywood decks with a minimum of 1/2” thick and Oriented Strand Board (OSB) decks of 7/16” thick, with at least 1/4” slope. As a recommendation, an anchor sheet should be attached mechanically to the wood before self-adhering to the cap layer or ply.

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We are Focused on Each Client’s Satisfaction and Experience

Tornado Roofing & Contracting Inc. is committed to providing quality installations for self-adhered modified bitumen roof systems to every client that needs it. Our work is affordable and can last for more than two decades. But if they are properly maintained their performance may exceed the period of warranty. With the right maintenance and installation, such systems may provide clients with watertight reliable low slope roofs—all these with minimal disruption, keeping workers safe and optimizing profit and overall production.

You can learn more here: Tornado Roofing & Contracting Inc. Plus, since your roof may not be the right one for you, you can get in touch with us for a free consultation to find out how you can extend your roof life or save money.