torch down roofing

Torch down roofing is a common roofing system that is used for both commercial and residential purposes. It has a number of advantages over traditional roofing methods, such as its durability and lifespan. In addition, there are many different options when it comes to torch down roofing, including the type of membranes, the type of modified bitumen, and the cost. Getting the right information about the various roofing options is a great way to make an informed decision.

Modified bitumen

Modified bitumen is a durable roofing material that was originally developed in Europe during the mid-1960s. It was designed to solve some common problems with built-up roofing. The membrane was infused with a variety of modifiers, including rubber, plastic, and fiberglass.

In addition to its durable qualities, the membrane is also fire resistant. Because of this, it can be installed over a variety of flat and low slope roofs, and is also suitable for use in multi-ply systems.

Compared to other types of membranes, modified bitumen is easier to install and repair. Additionally, it is less expensive than other options. Some commercial businesses prefer it over other forms of membrane roofing.

There are two main types of modified bitumen, APP and SBS. Both are available for use with torch down roofing. However, APP is often preferred in warmer climates. Similarly, SBS is often used in colder climates.

The main difference between the two types of modified bitumen is their chemical composition. APP is made from polymers, while SBS is made from rubber. Aside from these differences, physical properties also affect the proper use of modified bitumen.

Although APP and SBS modified bitumen can be used for torch down roofing, both types of membranes are also compatible with self-adhered systems. Using APP, however, requires a propane tank to apply the material. While the flames involved in this process can be dangerous, it is relatively risk-free when done by professionals.

Another benefit of using modified bitumen is that it can be applied in hot and cold temperatures. This makes it a viable choice for roofs on concrete and metal decks. Other benefits of this type of roofing include its airtight seal and ability to reflect UV rays.

While it is a popular option for industrial buildings, it is not recommended for residential homes. The thickness of the membrane can be too thick for some homes. Also, its life expectancy is shorter than that of EPDM. If you are considering installing a modified bitumen roof, be sure to hire a professional roofing crew.

Two-layer vs three-layer membranes

Torch down roofing systems are a popular flat roof application. However, they require extra training, equipment, and insurance. If you’re considering installing this type of roof, talk to several roofing contractors before deciding. This type of roof is more expensive, but it has many benefits.

Torch down roofing uses modified bitumen to create a water-tight seal. Modified bitumen is made from asphalt compounds, which are a blend of various additives. The roofing material expands in extreme cold and contracts in extreme heat. It also has rubbery additives to provide weatherproofing. Combined with an adhesive, it forms a secure, waterproof seal.

Modified bitumen membranes are available in two and three layer systems. The three-layer system offers the greatest benefit. Adding a granulated cap sheet is recommended to enhance protection and durability.

A three-layer torch down system consists of a base sheet, an adhesive, and a granulated cap sheet. The base sheet acts as a support for the torch roof membrane. The membrane can be bonded to the base sheet using an adhesive or by hot mopping.

The torch roof membrane is composed of modified bitumen and polymer, which are mixed together. It is also heated to form a seal. The vapor barrier is crucial for preventing moisture from damaging the new roofing system. When the membrane and the cap sheet are heated, they form a bond that is stronger than traditional, non-heated systems.

Two-layer torch down systems are less expensive than their three-layer counterparts. During the installation process, the roofer can use an open flame, propane burner, or natural gas burners. There are less seams and less joints in this type of roofing, which make it ideal for commercial buildings.

Torch down roofing can be used on residential homes and other buildings. It can be installed as a single ply or a double ply. Both of these methods offer a 40-year warranty.

Whether you choose a two-layer or a three-layer system, you’ll need to select the best type of membrane for your needs. Talk to your roofing contractor about which torch down roofing materials work best for your building.


When it comes to torch down roofing, the cost will depend on the material used, the tools and equipment, and the company. The more high-tech and expensive the materials, the more you’ll pay. Some regions may have higher average costs than others. But the cost of torch down roofing does not have to break the bank.

Torch down roofing can save you money on repair or replacement in the long run. It is a durable, rot-resistant material.

Torch down roofing can last for as long as 20 years, and it is one of the best investments you can make for your home. You can use the roof’s granulated surface to improve air flow, keep your home cooler, and reduce your energy bill.

Torch down roofing uses a combination of materials, including modified bitumen, reinforced polyester, and thermo-infused film. These materials help give the torch down roofing system its resilience.

Torch down roofing is also known as a re-roof, and is a more affordable alternative to conventional shingles. However, it is not suitable for flat roofs, or those with little slope. If you’re unsure about the type of torch down roofing you want, ask your local contractor for free estimates.

Besides being strong and durable, the materials used in torch down roofing are also eco-friendly. This is the main reason why torch down roofing has been gaining ground.

Torch down roofing also has a low weight. In fact, it weighs as little as two pounds per square foot. Most of these roofing sheets are granulated, which reflects sunlight and prevents rot.

As with other types of roofing, you should make sure you install a vapor barrier to keep moisture from entering your home. Waterproof tape or a polyethylene sheet can do the trick.

Of course, the cost of torch down roofing also depends on the size of your home. A larger home means bigger materials and labor expenses.

Other factors that might impact the cost of a new roof include the quality of the materials, the region where you live, and the competition for roofing services.


If you are thinking of installing a new roof, then you might be interested in the lifespan of torch down roofing. The lifespan of a torch down roof can be up to 15 years. This type of roof is usually installed on flat roofs. However, the lifespan can vary based on the region you live in.

Torch down roofing is a roof membrane that is made of asphalt and polymer. It is flexible and can withstand extreme temperatures. These are some of the reasons why it’s popular. Aside from being durable, it also has great waterproofing capabilities.

Torch down roofing can last up to 20 years if it’s properly installed. It is available in two or three layers, and the three-layer version has the longest life.

Torch down roofing is a flexible and durable material that provides a water-tight seal. However, it is not recommended for roofs with flat or very steep pitches. In fact, it is banned in several states because of fire hazards.

For a proper installation, you need to hire a professional. When you choose a contractor, you’ll need to make sure he uses the correct materials for the job. He will also need to have the proper experience to ensure you get a safe and reliable roof.

Some of the materials used for torch down roofing are modified bitumen, SBS, and AP. Although these roofing materials are very durable, they are not as resilient as PVC or TPO. Also, they may not withstand ponding water.

The lifespan of a roof depends on the material and quality of the material. Generally, a one-ply torch down system has a warranty of 12 to 15 years. Depending on the material, you might be able to find a more expensive version of torch down roofing.

Those who are looking to save on energy costs should also consider the longevity of this roofing system. A three-layer torch down roofing system is generally more energy-efficient.

Another advantage of torch down roofing is its versatility. Its waterproofing and fire-resistance features are ideal for areas with a snowy climate. It also is suitable for flat and gently sloping roofs.