What Is Modified Bitumen Roofing And How Does It Work?
What is modified bitumen roofing? The answer is quite simple – it’s old technology. Modified bitumen has been around since the early twentieth century, but was initially developed for road and bridge construction projects during World War I. Originally, bitumen was used as a fire retardant, which explains its use in old fire escapes. Today, it is primarily used as an effective roofing material because it’s flexible, durable, and inexpensive. Basically, it’s an amalgamation of tar and acrylic resins that are sprayed onto roofs to make a waterproof coating.
What is modified bitumen roofing? When it’s applied to a roof, it begins as a thin, translucent layer that can be rolled or molded into any shape and size. The top coating is highly resistant to the elements, so the resulting roof is almost always twice as strong as a comparable traditional poured roof. The product’s durability makes it ideal for applications where durability is a primary concern, like commercial buildings and government buildings.
Modified bitumen comes in two basic forms – rolled and torch roofs. For the rolled form, the membrane is rolled to the building’s dimensions before being attached to tar and topcoat. A similar process is used for torch roofs, but instead of rolling the membrane over tar and toppingcoat, it’s applied in thin layers. Both styles of modified bitumen are highly flexible, with the roll acting as a springboard for extra flexibility. This allows the system to conform to architectural challenges and architectural flourishes.
The material’s life expectancy depends on a number of factors. First, it’s important to note that bitumen roofs will last longer if they have been properly installed by trained professionals. Also, because the material’s strength increases with age, roofers must ensure that the roofs have good flashing around openings to keep fumes from the furnace from mixing with the air in the flat roof. Otherwise, a premature failure is possible.
Still, even with proper installation, a lifespan for these products can still be surprisingly long. By comparison, many types of roofing materials can fall off within just a few years, even though their lifespan is significantly short. Modified bitumen roofs retain their strength and durability, even under harsh conditions. They can withstand windstorms and extreme temperatures, which greatly increases their lifespan. By taking all these factors into consideration, it’s little wonder that these roofs have a lifespan that many clients and contractors would consider exceptional.
For these reasons, the material has become popular for a variety of applications, including roofing. In addition to being highly durable, its high fire retardant and insect repellent characteristics help make it more environmentally friendly. Of course, there are other benefits to using modified bitumen roofing, including its affordability, easy installation, and potential for saving money on the home’s energy bills. Yet another advantage of these membranes is that they provide a layer of insulation to commercial buildings. This makes them a preferred choice for places with higher ceilings, such as offices.