We have experience with all types of large residential roofs, commercial roofs and industrial roofs. From shingles, metal to flat composite roofs, LEGEND Exteriors & Construction is an expert in the repair, replacement and construction of any commercial roofing system. With thousands of jobs under our belt we are an excellent partner for completing your commercial roofing project!

Legend Exteriors TPO

White Membrane Roof Systems (TPO)

OUR TOP CHOICE!! More interesting facts about TPO at the bottom of this page

More and more builders are turning to white membrane roof systems to reduce energy costs. In Illinois, Chicago's Mayor Daley has promoted the use of white roofs by supporting grant programs and turning to the press - encouraging building owners to save money, improve the environment and contribute to a healthy city.

White membrane roof systems are known for being easily installed without disruption to daily operations. They are leak-proof and virtually maintenance free. Owing to technological advances, they can reduce cooling costs for buildings with A/C units, and help reduce temperatures on buildings with no cooling units.

White coatings can be applied to nearly any roofing surface, including metal roofs, single-ply rubber roofs and modified bitumen roofs. At LEGEND, our roofing experts can talk with you about which type of white roofing - and which roofing materials - are best for your needs, whether they are TPO, EPDM, PVC, high reflectivity, modified bitumen, Elvaloy or an elastomeric coating.

How Long Will My Roof Last?

Our customers often wonder how long their membrane roofing systems will last. The longevity of a membrane roof actually depends on several factors: climate and environmental conditions, proper building and roof system design, material quality and suitability, proper application and regular maintenance.

At LEGEND, our goal is to install lasting roofs that reduce our customers' long-term costs. To do this, we pay attention to the details. Our roofs are marked by quality workmanship throughout installation.

Legend Exteriors Metal Roof

Metal Roofing Systems

Metal roof systems are best known for their distinctive look. While many architects and developers choose them because they are energy efficient, environmentally friendly and long lasting, they also have a distinctive appearance that sets buildings apart.

LEGEND. installs metal roofing systems on commercial and industrial buildings. Our last project was the town of Farrigutt, Tennessee's "Park Project" where we installed "standing seam" style metal roofs to all 14 of their municipal buildings and parks.

As approved applicators of metal roof systems from the leading manufacturers, we ensure that your finished roof system is installed in compliance with the manufacturer's requirements.

Available in a wide range of finishes and materials, metal roofs allow for maximum design freedom. But sophisticated designs require an experienced and highly-competent roofer. LEGEND, is well equipped for the job as we place great emphasis on workmanship and attention to detail.

Legend Exteriors EPDM


EPDM (Ethylene Propylene Diene Monomer) is a widely used roofing material that is known for its durability and installation ease. These single-ply "rubber roofs" use a high-performance compound that weathers well in the Mid-West's snowy winters and hot summers.

Experience has shown us that EPDM is often the number-one roofing choice of architects, roof consultants and building owners, both for new construction and replacement roofing projects.

"Rubber Roofs" - A Sustainable Option

In the last decade, there has been a tremendous push to make buildings more environmentally sustainable. EPDM is a sustainable roofing option in more ways than one. It is known for its long life and durability, which reduces the long-term costs of replacement and repairs.

More than that, it's an energy saver. EPDM is available in black or white, which helps our customers choose the color that will reduce heating or cooling costs. We take a consultative approach, and talk to our customers in-depth about the rubber roofing system that will be best for their needs.

Studies have shown that, in northern climate zones, buildings with a dark colored EPDM "rubber roofs" actually save more energy than buildings with white roofing systems. The dark color of a rubber roof actually attracts the sun's energy and can help building owners cut heating costs. This is a great cost-saving feature - especially for schools, which remain largely unoccupied during the summer months.

EPDM is also a good choice for school roofing because it can be installed without too much disruption to students and teachers. The roofing membrane is rolled out across the roof and is mechanically attached, ballasted or adhered with a strong adhesive.

Legend Exteriors Rubber Roofs

Modified Bitumen Roofing Systems

Modified Bitumen Roofing Systems are known to be tough, durable, and are designed to withstand harsh weather conditions. These membrane roofs were introduced into the market in the 1970s and are found on many commercial and industrial buildings throughout the United States, Canada and Europe.

When it comes to application methods, customers who choose modified bitumen roofs have options. Depending on their needs, modified bitumen roof systems may be installed by the torch-application method, "hot-mopped" like built up roof systems, or applied with adhesives. Some modified bitumen roof manufacturers have also introduced self-adhering sheets, which cause the roofing membrane to adhere itself as it is rolled into place which is a popular choice.

All modified bitumen roofing systems are not the same. If your commercial or industrial roofing system is in need of repair, seek a specialist's opintion. Making repairs yourself with an unapproved part from another manufacturer can actually invalidate your warranty.

Legend Exteriors Built up

Built-up roofing systems

Built-up roofing systems (often called "tar and gravel" or "asphalt and gravel" roofs), redundancy is the key to making a strong and lasting roof. At LEGEND, we place layer on layer of coal tar pitch or asphalt, alternated with plies of reinforcing felts. The overlapping layers ensure that no moisture gets through.

As experienced roofing professionals, we install built-up roof systems on commercial and industrial properties throughout IL, TN and MO. We tailor built-up roofing systems to product specifications and budgets. Customers choose three, four or even five ply roofs according to their needs and budgets. Each layer creates added resistance to water and weather.

Our customers can also choose hybrid systems that combine built up roof membranes with one, two or three plies, and a modified bitumen membrane cap sheet. Over time, built up roofs have been proven to be one of the most durable and cost effective roofing options for low-pitch roofs.


  • TPO: Thermoplastic Olefin or Polyolefin
  • TPO membranes are single-ply roof membranes constructed from ethylene propylene rubber. They are designed to combine the durability of rubber with the proven performance of hot-air weldable seams. They have been tested as having excellent resistance to ozone, are algae-resistant, environmentally friendly and safe to install. The material's manufacturers are so confident in properly welded seams that the material is sometimes advertised as a monolithic (seamless) roof. Seam strengths are 3 to 4 times those of EPDM's adhesive and tape seams. TPO is highly resistant to tears, impacts, and punctures with good flexibility to allow for building movement. TPO's are available in white, light gray, and black with thicknesses of either 45 mils (.045") or 60 mils (.060"). The width of the membrane depends on the manufacturer but they usually come in widths of six to twelve feet and are one-hundred feet in length.
  • TPO membranes are installed fully-adhered, mechanically-attached or ballasted. Fully-adhered means that the roof is "glued" to the substrate using a special adhesive. What actually happens is the glue creates a chemical bond with the membrane. Ballasted simply means the membrane is loose laid over the top of the roof, sealed at all penetrations and around the perimeter, and then a ballast is put on it to hold it in place. Ballast usually consists of smooth, round, river rock 2" - 3" in diameter and is applied at a rate of 1,000 to 1,200 pounds per roof square (100 sq. ft.). Sometimes concrete pavers are used in their place. These average 20 pounds per square foot. Mechanically-attached membranes are those that use some type of special screw-type fastener to secure it. The type of fastener will depend on the type of substrate but all fasteners are generally screw-type fasteners.
  • TPO now has a 15-year performance history under its belt in the United States, and the majority of roofers is giving the product a thumbs-up. According to RSI's 2007 State of the Industry Report, approximately 75 percent of commercial roofing contractors are completely satisfied with the performance of TPO, and this number has grown each year. In 2006 the majority of RSI's readers said they saw the most opportunity in the single-ply roofing sector - led by TPO - which underscores the encouraging industry statistics previously mentioned.
Legend Exteriors Energy Chart

Rooftop temperatures are as much as 60 degrees Fahrenheit (F) cooler with a white sheet compared with a black EPDM, modified bitumen, or built-up system.

The trend toward Energy Star-labeled, compliant reflective roofing is a huge benefit for TPO.

Legend Exteriors Energy Star

This high, sustained reflectivity is saving significant energy and money for building owners all over the United States. Because the TPO roofing system is mechanically-attached and insulation can be placed under the membrane during the roof installation, you can reduce your building's heat loss in the winter.

White TPO carry the EnergyStar label for approved energy saving roofing products. The U.S. Environmental Protection Agency's EnergyStar labeling program identifies roofing products that can reduce energy consumption and reduce problems associated with heat build-up, smog and air pollution.

Legend Exteriors Energy Chart
  • Resistant to fire, chemicals, grease, high winds, and punctures.
  • Installed without disruption to building operations.
  • Highly reflective. The white membrane delivers real cost savings for building owners and managers.
  • Code compliant.
  • Professionally installed by authorized contractors.
  • Backed by the industry's best warranties.