For over a century, built-up roofing membranes have been used on homes throughout the United States. These roof systems typically have several layers of bitumen and reinforcing fabric over a base layer of asphalt. A single-layer system might use a type of polyethylene (TPO) or EPDM membrane. Bitumen can be asphalt, coal tar, or a cold-applied adhesive. The top layer protects the layers below from debris and water penetration.
ARMA describes a built-up roof as a multi-ply system that is made up of multiple layers of asphalt or ply sheets. These layers are typically laid over insulation to create a back-up roof and a water-resistant barrier. ARMA also defines the benefits and drawbacks of built-up roofing systems. In general, the benefits outweigh the drawbacks. This article will provide a basic overview of the construction and application of both types of roofing.
One of the biggest benefits of a built-up roof system is its durability. A roof with this type of material is extremely durable, lasting between 40 and 50 years. This is why they are so popular in the industrial roofing industry. They are also incredibly low-maintenance, meaning they are perfect for commercial buildings and will never need replacement. In addition, built-up roofing can be installed on almost any type of commercial roof deck, and they are extremely versatile and durable.
While built-up roofing has been around for decades, newer types of BUR include a layer of rigid insulation, increasing the energy efficiency of homes. Essentially, a built-up roof has three parts: the base, the shingles, and the bitumen material. Bitumen can be applied hot or cold, either sprayed or squeegeed on. When installed hot, the material does not give off any toxic fumes. Cold built-up roofing uses special fabrics.
Unlike other forms of roofing, BUR is durable and heavy. Unlike other roofing options, BUR is also highly reflective. Because of this, it reduces energy bills and maintains interior temperatures. It is one of the oldest roofing systems, and many commercial buildings have found it to be highly beneficial. But it still has its flaws, so it’s important to choose an experienced, certified contractor to install your new roof.
Built-up roofing is a great option for a flat or low-slope roof. Because it is made up of several layers, it offers excellent waterproofing. The layers are made of thick materials that prevent water from leaking through. In addition to its durability, built-up roofing offers easy repair. When damaged, the roofing materials are easily patched. They are also extremely easy to replace when needed. And if you are concerned about the cost of replacement, consider a built-up system.
The layers of built-up roofing are commonly made of fiberglass or organic material. They are manufactured in rolls 36 inches wide and are glued together with bitumen. This bitumen is usually made from coal tar or asphalt, which will give the roof a waterproof surface. The last layer is covered with gravel or stone. Because it is durable, built-up roofing can last for more than four decades. This type of roofing system is especially good for low slope roofs and flat surfaces.