Summerlin's climate can be harsh, with its hot, dry conditions and occasional heavy rains, which makes the selection of roofing materials a critical choice for maintaining a durable and long-lasting roof. Modified bitumen roofing is an excellent option for these conditions, as it is specially engineered to withstand the extremes of temperature and weather that define Summerlin's climate. It consists of asphalt and modifiers such as polymers that enhance its elasticity, durability, and resistance to UV rays. As a layered system, modified bitumen roofing provides increased protection and a better "fit" to the building's thermal movements, diminishing the likelihood of cracks or leaks. The bottom line: it is a system perfectly suited to the roofs of both homes and businesses in Summerlin, protecting them and ensuring their longevity through a variety of weather conditions.
If you're thinking about installing modified bitumen roofing on your Summerlin property, it's crucial to consider what kind to use. The two most common types are APP (atactic polypropylene) and SBS (styrene-butadiene-styrene). APP-modified bitumen is selected mainly for its waterproofing ability. It's not the most common product in the U.S., but it's the most common modified bitumen product used worldwide. It works best when installed in warm temperatures, which is how most roofing jobs are done in the summer and with the torch-down method. SBS-modified bitumen is the product of choice in most of the U.S. and here in Summerlin. It's selected mostly for its flexibility. It doesn't stiffen and crack when the temperature goes down, and it works just fine when the temperature is up and well above the freezing point—meaning it's a good product for roofs that have a lot of thermal expansion and contraction.
In addition to the choice of material, Summerlin residents must also consider the installation method for their modified bitumen rooftop. The most common method to install modified bitumen is torching it down. In this method, the roofing material is heated with an open flame and then adhered to the surface of the roof as well as to the seams of the roofing system. ... In contrast, the self-adhered and cold-applied methods use adhesives to attach the roofing membranes to the roof deck and each other. The self-stick method is fairly straightforward, and the cold-applied method is ideal for areas where torching is not safe or allowed. ... Qualified roofing contractors can explain the pros and cons of the different application methods and help you decide which is best for your particular situation.
