![]() ![]() The pros of built-up roofs are that they’re relatively inexpensive, easy to install and maintain and provide an excellent slope for water drainage. These roofs have several layers: an outer protective layer (like the modified bitumen mentioned above), an insulation board between two sheets of plywood called decking, and all covered with gravel before the insulation to provide a waterproof barrier. Prone to water puddling (more than other types of roofs).Produces harmful fumes during installation.Lastly, it absorbs a lot of heat in the summer months, so it can cause your AC system to work a little harder, thus upping your energy bills. In addition, the modified bitumen layers can be easily damaged or worn away if it’s walked on or experiences a lot of debris consistently. Another downside to this material is that it isn’t ideal for commercial roofs that get a lot of foot traffic. ![]() The use of these materials means there could be environmental impacts and health hazards for workers on your site who install these roofs because it can create a lot of fumes. The downsides are the specific materials used in a modified bitumen system, which can be made up of asphalt or coal tar pitch, polymers, and other chemicals. Two other significant advantages to this type of roofing are that it’s relatively inexpensive and easily installed. The multiple layers consist of insulation, plyes (or base sheets), fiberglass or polymer membrane, an adhesive, and the surface layer, protecting the roof from UV rays and help to absorb heat. It is a multi-layer system that provides ample protection from water leaks and UV rays, so it won’t wear too quickly and can last upwards of 20 years with proper maintenance. Modified bitumen is an excellent option for commercial flat roofs. We’ll touch base on the pros and cons of each flat roofing material so you can make an educated decision on which one works best for your budget, level of maintenance, and size of your roof. There are a few very commonly used flat roofs for commercial structures including, but not limited to, modified bitumen roof, built-up roof (BUR), single-ply membranes, pvc roofs, and green roofs. The Pros and Cons of Various Flat Roofing Materials We will go over which ones are the best for your business, so you can worry about your team and not your roof. Either way, many different types of flat roofs provide varying benefits to the building owners and their residents. Flat roofs allow for a large area to be protected from the elements and even act as a functional place to have a rooftop hangout or community garden with green roofs. We’ll talk about their pros and cons so you can make a more informed decision on what’s best for your needs! What is a Flat Roof?Ī flat roof is not actually flat, but has a very low slope (for water drainage) and is most often found on commercial buildings like high-rises, strip malls, and big-box retailers. Many different materials can be used for roofs, and in this post, we will give an overview of some of the most popular ones. What are the best flat roof materials for your business? If you don’t know, then we have a guide to help.
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