What Is TPO Roofing?

TPO stands for thermoplastic polyolefin. It is a single-ply roofing membrane popular with commercial buildings. Its usage in covering flat roofs has been growing over the years. These TPO membranes come in different widths to match different needs. The quality of TPO differs from one manufacturer to the next.

Here are some key facts about this roofing option.

A popular, easy-to-use roofing option

The reason for TPO roofing material is similar to a typical roofing system: to form the best barrier for repelling ice, snow, and water. TPO is primarily used on low-sloping or flat roofs. Heat welding, adhesives, and mechanical fasteners are typically used to attach the membrane to the roof.

What’s used to make the TPO roofing material?

TPO roof membrane is made using a single ply consisting of about three bonded layers to form one membrane. Modified TPOs have much better impact resistance, flexibility, and tension strength but still have chemical resistance due to the presence of polypropylene plastic (PP).

The membranes may have compounds such as EPR or EPDM rubber depending on the formulation. The membranes also include UV absorbers, lubricants, antioxidants, fire retardants, and pigments. The addition of all these materials aims at enhancing how TPOs perform.

TPO layers

TPO membranes have different layers. These include:

• A top layer formulated using abrasion-resistant compounds and UV blockers.

• A middle using a polyester mesh material (high strength) designed to give the membrane more structure. The middle layer increases the tensile strength and puncture resistance.

• A base layer included to offer more flexibility, adhesion, and strength.

• A possible fleece backing that can be applied for specific installation needs.

Benefits of the TPO roofing option

Puncture resistance

Due to its resistance, TPO is less likely to be punctured than other roofing options. The puncture resistance feature is based on the substrate and installation methods used. Choose a professional contractor to avoid using one who will compromise the material, which can lead to leaks.

Energy efficiency

The TPO roof membranes are available in white and light colors. This allows more energy savings when compared to dark-colored roofing options. Most manufacturers report lower heat absorption when a light-colored option is installed.

Cost-effectiveness

TPO offers a balance between price and performance, giving great value. TPO is easier to install because of the flexible materials, thus resulting in lower installation costs.

Weather resistance

TPO roofing is much more weather resistant over long periods. It withstands UV rays and heat much better than other roofing options. It is shrink-resistant, meaning sealants and seams remain in the correct position.

Professional installation

Proper installation is critical to reap all the benefits associated with TPO roofing. It’s essential to seek the services of professional roofing contractors to ensure the job is done well. Suitable roofing materials, tools, and installation methods should be used to avoid compromising the quality of the roof.

Irish Roofing Company offers commercial, flat roofing, rolled roofing, TPO, roof coating, and protech products to Scottsdale business owners. We offer ethical and professional services.