TPO (Thermoplastic Polyolefin)



What You Need to Know About TPO (Thermoplastic Polyolefin) Roofing Material

A well-installed roof enhances the aesthetics of your property while protecting your home against weather elements. However, your roof’s efficiency, functionality and performance depend on the type of roofing material you choose.

Unfortunately, the market is flooded with an array of roofing materials, and it can be daunting to choose the ideal roofing material for your living space. At Noah’s Roofing, we focus on helping you select the best materials for your roofing project in the Northern California area, including Sacramento, Roseville, El Dorado Hills, and beyond. 

Today, we will look at the TPO (Thermoplastic Polyolefin) Roofing Material and why it’s a premier roofing product for all your roofing needs.

What is TPO (Thermoplastic Polyolefin) Roofing Material? 

If you have noticed exceptionally bright white roofs dotting the Northern California landscape, you may be familiar with the TPO. TPO is arguably one of the most common roofing types for extensive commercial facilities and residential properties in California and the entire US. A recent report from the National Roofing Contractors Association (NRCA) reveals TPO enjoys about 40% of the commercial roofing market share.

TPO is a single-ply roofing membrane that is made by blending polypropylene and ethylene-propylene rubber. Typically a TPO membrane consists of three layers:

  • A top layer: Contains the polymers that provide the reflective quality
  • The scrim: This is the middle layer reinforcing the rubber to guarantee stability and strength for high performance
  • Bottom layer: The base contains performance-enhancing additives, including flame retardants.

The TPO membranes are typically available in a range of thicknesses. However, the 45 mil thick membranes are the most utilized option in several residential and commercial projects.

The Advantages of TPO Roofing Material 

Cost-effectiveness

If you are considering a new roof installation or replacement, you are probably concerned the installation cost will be high. This concern is not far-fetched, especially if you are implementing a large commercial roofing project. The great news is that you can save money by opting for a TPO Roofing Material. TPO is a relatively cheaper option when compared to many other roofing materials out there, including PVC materials. 

High energy efficiency 

TPO roofs are made with shiny membranes that effectively reflect the sun’s heat to prevent it from being absorbed into your interiors. This helps avoid running your AC more frequently, thus saving you a lot in energy costs. Additionally, because TPO membranes are made entirely from recyclable materials, they have a minimal environmental impact compared to other popular roofing materials.

High durability

TPO roofs undoubtedly last for extremely long periods as compared to several other options out there. The roofs also resist several types of hazards, including long-term exposure to the sun’s UV rays. They also hold up well to puncturing, tearing, and water and frost damage. Best of all, the roofing material can resist bacterial growth and dust buildup, thus enabling easy roof cleaning. If you use TPO membranes in your roof, you can expect it to serve you well for over 20 years or more.

Ease of installation

Generally, TPO membranes are made with extensive sheets that are extremely lightweight. As such, the material is easy to install because they have fewer seams. Less work and time needed for an installation ultimately translates to direct savings for you.

Adaptable to several home styles

TPOs are typically made to look great on many different types of homes. They are also available in various colors, including white, light grey, and black reflective color options. Notably, the manufacturing process leverages the latest technologies to enable all colors of TPO membranes to be UV resistant and provide a cooling effect. This means that you won’t have to stick with a white roof to enjoy a TPO membrane’s energy-saving and reflective properties.

How Are TPO Roofs Installed?

The installation steps in TPO roofing can vary depending on the installation method you choose to go with. However, the basic steps include:

Step 1: Measurement of the roof 

The first step is to measure the size of the roof to ensure enough material is purchased and allocated. 

Step 2: Roof preparation

Next, the roof is cleaned of large debris and moisture. Trapped water underneath the TPO causes mold and other problems.

Step 3: Installation of the insulation foam

After the surface is adequately prepped, the installation of the insulation foam begins. The roofing expert from Noah’s Roofing will stagger the foam to achieve an added strength, smoother surface, and better insulation.

Step 4: Setting up the TPO

The TPO experts will set up the TPO by rolling it out and making adjustments to make sure it is straight. TPOs that contain wrinkles or are not straight are adjusted appropriately. Once the TPO has been set and is straight, the experts will then secure it down to the roof surface and insulation boards.

How Are TPO Roofs Repaired?

A TPO roof can last for approximately 15 to 20 years without a need for repairs. However, with time, the roof takes a lot of wear and tear abuse, leading to failed flashings, punctured membranes, and ripping. The first sign your TPO roof needs repairs is when you notice water leaks that enter the interior spaces of the roof.

At this stage, it is time to call a TPO roofing expert from Noah’s Roofing to perform a robust roofing inspection. Once on-site, our roofing experts will perform an infrared inspection to check the amount of saturation in the insulation. During the inspection, the experts will be able to determine:

  • The age of your roof
  • The place where water is entering your insulation
  • The remaining layers in the roof
  • The condition of the seams

The repair or replacement options will depend on the results of the infrared inspection:

  • A TPO roof under 25% saturated can be repaired using a silicone restoration membrane system. During the restoration process, the saturated areas are removed and replaced with new TPO similar materials.
  • However, a TPO roof with more than 25% saturation is in very bad shape and cannot be restored. The only available option will be to install a new TPO system.

Get Help from the Professionals

At Noah’s Roofing, we work with highly trained and experienced roofing experts with a proven track record installing thermoplastic polyolefin (TPO) roofing membranes for residential and commercial properties. We service an extensive Northern California area, including Sacramento, Roseville, El Dorado Hills, Elk Grove, Cameron, Park, Carmichael, Fair Oaks, Davis, and beyond. Contact us today to schedule a free estimate.



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