When it comes to roofing, there are a few common types of membrane roofs. Among them are EPDM, TPO, and PVC. But what is the difference between them? Read on to learn more about these three roofing types. We’ll cover their pros and cons, and explain the benefits and drawbacks of each. Ultimately, a membrane roof protects the interior of a building and keeps it dry.

Polymer-modified bitumen

Modified bitumen roofs are asphalt-based sheets made of a mixture of polymers and fibers. This process creates a roofing membrane that is both flexible and durable. Polymer-modified bitumen roofs were first developed in Europe during the early 1960s and have been used in the U.S. since the mid-1970s. These roofing systems are made up of two or three layers and are almost always fully adhered.

Modified bitumen is an excellent choice for roofing because it is long-lasting, has a high degree of waterproofing, and is easy to install. Because this type of material is highly flexible, you can use additional polymer sheets to boost its durability and make repairs easier. Additionally, this type of roof offers an exceptional level of UV protection. While this type of roof can withstand the harsh elements of nature, it is not recommended for use on buildings with very high temperatures.

A common concern with polymer-modified bitumen roofing systems is the long curing time required for the system. This can result in a roof system that cannot be wind-resistant, and can also cause problems in areas with ponding water. Another concern with polymer-modified sheet membranes is that solvents will migrate through them. In contrast, APP-modified bitumen sheets are less susceptible to solvent migration and absorption. However, they take a longer time to fully cure than SBS-polymer-modified bitumen sheets.

Modified bitumen roofs can be installed on slopes as shallow as one-fourth inch per foot. The modified bitumen is applied over solid insulation that is mechanically attached to the roof deck. The cap sheet is torch-applied over the SBS base sheet. SBS stands for styrene-butadiene-styrene. These polymers are blended with asphalt to give it properties such as flexibility and thermal resistance, even at low temperatures.

Modified bitumen roofing is often installed in cold climates. Cold-weather products are essential when installing polymer-modified bitumen roofing. The low-temperature Polar base membrane and cap are designed specifically for installation in freezing conditions. They can also be restored in place. This allows for a seamless installation. The durability of the roof system is one of its greatest advantages. The system can last for decades, so you can rest easy knowing your roof will last.


When choosing the EPDM membrane roof for your building, there are a few things to consider. While EPDM roofs are very durable, they can be subject to premature failure. Common problems include craze-cracking and shrinkage. While a few problems may be unavoidable, most of them are the result of improper maintenance and inadequate repair. For this reason, it is important to keep your roof well-maintained and protected from damage.

Although this material is very durable, it is more vulnerable to wind damage, especially if improperly installed by inexperienced roofing crews. An improperly secured portion of a rubber roof will let debris and moisture accumulate. If these areas are not repaired, they will eventually become damaged and need replacement. If you want to extend the life of your EPDM roofing, you should consider scheduling an inspection after a storm that has brought severe winds. Even hurricanes can cause significant damage. Wind speeds can range from 74 mph to 150 mph.

Regardless of the type of roofing you choose, it is important to consider the price. EPDM is available in several different thicknesses, ranging from 45 mils to 60 mils. It is also available in sheets up to 50 feet wide. Generally, larger sheets are better, as they have less seams and fewer potential leakage points. Because EPDM can leak, it is necessary to check for leaks at joints and fastener penetrations.

EPDM is typically black in color. Energy-reflective white coatings are commonly applied over it. However, removing this coating can be expensive and difficult. If you suspect your EPDM roof may have flaking or deteriorated, contact a roofing specialist. You should also consult the manufacturer of the coating to determine if it is compatible with your roof’s EPDM membrane. Wind scour can cause ballast to shift. If this is the case, a ballast pad should be used to correct the problem.

An EPDM membrane roof has many advantages over traditional roofing materials. The most obvious advantage is its durability. This synthetic rubber roofing membrane is available in white and black colors and is sold in a wide range of thicknesses and widths. In addition to being durable and waterproof, it also offers excellent energy savings. You can choose from a variety of colors to match the color scheme of your building. You can also find EPDM roofing manufacturers, including GenFlex, Carlisle SynTec, and John Manville.


A TPO membrane roof is a great choice for your home, as it is UV, ozone and acid-resistant, and also resists tearing in hail storms. Its reflective properties reduce energy consumption and improve indoor air quality in hot summer months. TPO roofing can be attached using adhesives, heat-welded around penetrations, and mechanically fastened to the roof deck. It also resists microbial growth and is highly resistant to a variety of chemicals.

The TPO membrane roof is a lightweight, flexible material that can be installed on low or high-slope surfaces. It is also flexible, allowing buildings to settle. The material is extremely resistant to punctures and tears, and is heat-welded at 926 degrees. This makes it a versatile material that can accommodate many different roof configurations. Listed below are some of the benefits of using TPO for your next roofing project.

TPO is one of the fastest-growing single-ply commercial roofing systems on the market. This roofing material combines the benefits of a rubber roof with the cost effectiveness of a thermoplastic membrane. It also comes in various thicknesses, is flexible and is highly reflective. Because TPO is reflective, it lowers cooling costs. If your budget is tight, you might consider a TPO roof for your next building project.

TPO roofs are resilient to ultraviolet rays and heat. Their solid nature also means that they are strong enough to withstand big storms. They are durable, robust and easy to install. Couvreur Couv-Toit is a company that provides TPO membrane roof installation. Its professionals are trained and experienced in the installation of TPO roofs. If you’re looking for a quality TPO membrane roof for your new home, consider the following tips and considerations.

TPO single-ply roofing material is 100% recyclable. It can even be granulated and recycled into a new roof. TPO roofing material protects your home from ultraviolet light and chemical degradation. These roofing materials will prolong the life of your home and minimize the need for roof repair. They also save you money on utility bills. They also are a good choice for the environment. There are numerous benefits to having a TPO membrane roof.


Since the 1960s, polyvinyl chloride (PVC) membrane roofs have proved to be an excellent choice for low-slope applications. Although they were considered a novelty at first, PVC roofs are now mass produced and offer a range of benefits. These advantages include UV reflectivity, solid seams, and water and chemical resistance. This material is also fire resistant, making it a reliable option for low-slope constructions.

Among its many benefits, PVC membranes offer good insulation and are ideal for cold climates. They are also affordable for low-slope installations. In addition, EPDM roofs come in wide sheets that simplify installation. The installation process is also quick and less labor-intensive. However, while the benefits of PVC membranes are obvious, there are some downsides to PVC membrane roofs. To combat these negative aspects, you should choose a material that is resistant to heat and UV rays.

Adhesive systems require more materials, but they offer excellent energy-efficiency. Although they may cost more than other options, they are far less prone to leaks and damage. Unlike shingle roofs, adhered membranes are mechanically fastened to the structure. As they adhere to the roof membrane, they resist uplift. Some membranes can even be installed directly on concrete. When choosing a type of PVC roof, you should be aware of any limitations of the installation method.

TPO is a relatively new material for roofing. It is more affordable than EPDM and other rolled rubber roofing materials. Because it is made from synthetic rubber, TPO has excellent UV, ozone, and heat resistance. Another advantage of TPO is its thickness, which increases its lifespan. This thickness helps to reduce the risk of damage and increases the life expectancy of the roof. You can choose between PVC membrane and TPO membrane depending on the weather conditions.

A PVC roof must be installed on a clean and smooth surface, free of debris and other elements that could puncture it. If the old roof is installed first, it is necessary to remove it, which may take a significant amount of time. Also, the temperature of the environment will determine the durability of the PVC membrane roof. In areas with harsh weather conditions, such as hurricane zones, PVC roofing will require a few repairs each year. However, with proper maintenance, PVC membrane roofing can last for up to 30 years.