If you're shopping for a commercial roofing system, there are plenty of options. That doesn't mean one is always better than the others. Some last longer, some handle wind better and others save energy. Every commercial building has different needs, starting with the slope of the roof, what's happening inside the building and how long you plan to own it. Here we go through seven of the most widely used commercial roofing products and what each does well.
Metal
The first on our list is metal. Many businesses choose metal roofs because they're durable, which means less spent on maintenance and repairs. If you're worried about strong wind, a properly installed standing seam system is one of the best ways to protect your building, and many panels carry high wind uplift ratings. With care, metal roofs often last 40 years or more. Steel is the most common choice, and aluminum, copper and other metals are also used.
Shingle
Shingles are an economical option. While they're most common on homes, they work well on commercial buildings with steeper slopes, such as offices, churches and apartment buildings. Asphalt shingles are by far the most common type. A shingle roof generally doesn't last as long as metal, but installation and repairs are straightforward, and impact-resistant shingles hold up better to North Texas hail.
TPO, PVC and EPDM
TPO (thermoplastic polyolefin), PVC (polyvinyl chloride) and EPDM (ethylene propylene diene monomer) are single-ply membranes, the most common choices for flat and low-slope commercial roofs. Our TPO vs PVC vs EPDM comparison covers them in more detail.
TPO is usually white and reflects a lot of the sun's heat, which helps with cooling costs in a Texas summer. Its seams are heat-welded, and it's lightweight and quick to install. PVC is similar but holds up especially well to grease and chemicals, which makes it a good fit for restaurants and some industrial buildings. It generally costs more than TPO. EPDM is a rubber membrane with a long track record. It's durable and flexible and resists sunlight, and it is usually black unless a white version or coating is used.
We are certified with GenFlex and Elevate (Holcim), two single-ply membrane manufacturers, and with GACO for silicone roof coatings that can extend the life of a sound existing roof.
Green Roofs
More building owners are experimenting with green roofs. If you want to reduce energy use and stormwater runoff, this roof is worth a look. The idea is simple: a waterproof membrane, a root barrier and drainage layer, then soil and plants on top.
A well-built green roof protects the membrane underneath from sun and temperature swings and gives the building a striking look. The trade-offs are weight, cost, and the need for water, drainage management and regular upkeep. The structure has to be engineered to carry it.
Built-Up Roofing
Finally, there's built-up roofing (BUR). It's made of alternating layers of bitumen (asphalt or coal tar) and reinforcing ply sheets, usually topped with gravel. The number of plies affects durability and price, and a well-maintained built-up roof commonly has a 20-year-plus service life. These roofs are tough and easy to repair. Modified bitumen is a close cousin, with polymer-modified sheets that are more flexible, and it's often used for repairs and replacements on older built-up roofs.
If you're planning a new commercial roof or need to repair an existing one, give Roof Experts a call. We'll assess the roof, explain which systems fit your building and your budget, and handle each project with care. Call (817) 754-9484 to schedule an inspection.