Home Improvement

How Long Will TPO Roofing Last?

TPO Roofing

TPO roofs are standard in commercial buildings. These roofs are made of single-ply membranes that are mechanically fastened and have insulation to add a layer of protection. Most TPO Roofing is white to reflect UV rays.

TPO roofs are durable and sturdy, and a properly installed one will last 20 to 30 years. In addition, these roofs can withstand harsh climatic conditions like storms and the sun, and they are also waterproof, which is a leading cause of roof damage.


The two types of single-ply membranes are TPO and EPDM. Although they have some similar characteristics, these two are different in their chemical composition and energy efficiencies. Some of the differences are:

  • TPO roofs have white surfaces that reflect light. That makes them more energy efficient.EPDM roofs have dark surfaces, making them less energy efficient. As a result, these roofs absorb the most heat in summer.
  • TPO roofs are more durable and sturdy, and they are puncture resistant. You can comfortably walk on these roofs without the fear of tearing them, unlike the EPDM roofs that can rip and wear.

TPO Roofing Insulations

When buying a TPO roof, you choose the type of insulation you want the roof to have. The three kinds of TPO roof insulation are;

Polyisocyanurate (Polyiso)

This is the standard insulation for TPO roofs. Polyiso insulation has a higher R-value rating, meaning it insulates well. However, TPO roofs with this insulation are more expensive.

Expanded Polystyrene (EPS)

EPS has the highest R-value, and homeowners use it for walls and roof insulation. TPO roofs made of this insulation material are very energy efficient. The insulation also protects the roof from water damage because it does not allow water retention.

Extruded Polystyrene (XPS)

This TPO insulation material comes in blue, pink, or green colors and its characteristics are a mixture of polyiso and EPS. Also, the price and performance of XPS range between Polyiso and EPS. However, this roofing material is not the best for water resistance because it is semi-permeable.

Cost of TPO Roofing

The cost of TPO roofing is not standard because it depends on several factors like;

Size of the Roof

TPO manufacturers sell the roofs per sq. foot. Therefore, the bigger the top, the more expensive it will cost you to buy. For example, it costs between $3.50 and $7.50 to purchase and install a TPO.

Condition of the Roof

The more well-cared-for and good-in-condition your roof is, the cheaper the TPO will cost. This is because you get the entire material without the need for repairs—also, the ease of accessing the roof matters, especially in the cost of installation.

Type of Insulation

The cost for the three types of insulation varies because they have different characteristics and features. For example, an EPS has a higher R-rating than a polyiso, and is more expensive to buy and install.

Installation Choice

Besides the type of insulation, homeowners can also choose an installation method. The more complex the process is, the more you will pay for labor.

Advantages of TPO Roofing

One benefit of TPO roofing is its durability. When cared for, this roof can last for over 30 years, unlike other roof materials. This is because TPO is waterproof, and water is one of the significant causes of roof damage.

Choice of Insulation

Also, with TPO roofing insulation, customers are spoiled for choice. During construction of the single-ply roofs, the manufacturer does not install the insulation factor, so the homeowner is left to choose the insulation type to install on their top.

They Are Fire Rated

TPO and EPDM are fire-resistant, a reason many commercial buildings prefer them. Also, these buildings are more prone to fire outbreaks. The manufacturer makes the roof fire-resistant by adding fire retardant chemicals during manufacturing.

They Are Reflective

TPO roofs have a white reflective surface to redirect sunrays. This is different from EPDMs that have black surfaces. The white TPOs reflect most sun rays away, hence more energy efficiency and comfort of the home.

You Can Repair the TPO Roof

Although these roofs last long, they sometimes wear and tear before their expiry dates. The seams rip apart, and other times, the flashings can fail. Also, tree branches can fall on the roof and cause punctures leading to roof leaks.

You will know that the TPO roof needs to be repaired if water starts to penetrate the ceiling. Failure to repair these damages can lead to the destruction of the roof by water, especially wood.

When you get the assistance of a professional to check your roof, they will be able to determine the cause of the leaks, the number of layers your roof has, and the age of the TPO. The information gathered will help the roofer to know the repair options.

For example, an old TPO roof will have its seams detached and lifted on one side, making it vulnerable to leaks. The installers will inspect the roof after the sun goes down because the top is cooler at this time. They then spray paint on the damaged areas.

Cons of TPO Roofing

Besides the benefits of energy efficiency and durability, the TPO roofs also have cons.

Different TPO Qualities

Although the roof is generally durable, various manufacturers make their TPO roofs with a wide range of thicknesses and materials. As a result, new buyers are tricked by the thickness, thinking they are more durable. Also, manufacturers use different compounds to make these rooms; hence, the variations in durability and sturdiness.

Cracks to the Roof Surface

The TPO roofs have weak lamination made with different materials, and that can cause the roof’s materials to shrink and crack quickly. Homeowners have to buy high-quality TPO roofs to protect their roofs.

Final Words

A houses’ roof influences how well the home is built. Most homeowners and buyers are going for any material that is energy efficient to reduce the cost of power, and TPO roofs are a good choice. The most significant advantage is their durability.

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