TPO Roofing Explained

Most owners of commercial buildings in Texas and other parts of the United States love TPO roofing because of its energy-saving capabilities and longevity. Therefore, if you want to replace the existing roof on your commercial building, you should give TPO roofing a try. But before you install this roof on your property, you need to understand what it is and how it works. This article explains everything necessary about TPO roofing.

What Is TPO Roofing?

TPO (Thermoplastic Polyolefin) roofing is a single-ply roofing membrane commonly found on large commercial buildings. Currently, TPO is the most popular commercial roofing system on the market. It comprises a single layer of synthetic and fortifying scrims that are perfect for covering flat roofs. These TPO membranes are available in sheets of different widths, including 10, 12, and 20 feet. Machines roll up the sheets for easy transportation to the commercial building.

The overwhelming industry acceptance of these TPO membranes is primarily associated with the natural reflective surface that enables them to reflect UV rays while keeping your interiors warm in the cold season and cold during hot summer months. The National Roofing Contractors Association (NRCA) claims that TPO membranes currently enjoy almost 40 percent of the commercial roofing market share.

How Is a TPO Roof Installed?

If you replace an old roof with TPO membranes, you have to start by removing the old roof or preparing it for the new installation. You can just clean the old roof if it’s not entirely damaged. Also, make sure the insulation is installed before the TPO membranes are placed. When it’s time to install your TPO membranes, you either attach them to the cover board using a bonding adhesive or fasten them mechanically.

Once the membranes have been installed successfully, your roofing contractor will weld the seams using a hot-air gun. If properly maintained, a TPO roof can last for more than 20 years. However, you have to check your roof regularly for failing flashings, punctures, and ripped seams. One of the main signs of a TPO roof that needs repair is leakage. This normally occurs when the seams rip apart, or the membrane gets punctured.

The water will pass the insulation and roofing deck to start leaking on the inside of your building. When this happens, you need to call your roofing contractor for roof inspection and repair. The cost of installing a TPO roof depends on several factors, including the size of your roof, condition of the existing roof, access to the roof, and the type of membrane you choose.