WebJul 1, 2007 · Two basic components - felts and bitumen - are laminated in the field (built-up) to form a roofing membrane. The bitumen is usually asphalt ( ASTM D-312) or coal tar pitch ( ASTM D-450 ). The bitumen serves as both the … WebBuilt up roofs, also commonly known as BUR, have been a common roof system for commercial buildings for more than 100 years. A BUR roof is typically installed as a roof …
A Look Back in Time at the Rise of the Roofing Industry
WebFeb 1, 2024 · Built-up roofing, also called BUR, is the most common roofing material used on low-slope roofs. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel. BUR is preferred for low-slope, or “flat,” roofs because it creates a continuous sealed surface. WebApr 17, 2012 · This is how a compact roof would be constructed if I was in charge ( Figure 11 ). There should be a continuous fully adhered air control layer supported by gypsum sheathing on the top of a metal deck. 3 The gypsum sheathing is screwed to the metal deck. sun country itinerary
CHOOSING A FLAT ROOF - IKO Commercial
WebBuilt up roofing is made from material consisting of alternating layers of bitumen and reinforcing fabrics. These layers create a finished membrane. Asphalt, coal tar, or cold-applied adhesive are used in the bitumen, while organic or fiberglass mats are used in the reinforcing fabric. BUR is the most common roofing material for low-slope roofs. WebJan 15, 2024 · There are two main types of bituminous roof systems, built-up roofing (BUR) and multi-ply, polymer-modified bitumen. The two-main polymer-modified bitumen membranes on the market are SBS and APP membranes. Built-Up Roofing (BUR) BUR systems have been used for more than 100 years in the United States. WebJul 3, 2024 · Built-up roofs are a tried and true commercial roofing option, but that doesn’t mean they don’t take planning.While built-up roofs (BUR roofing) systems were invented in the 1800s, and became popular for commercial buildings during the 1970s, they’re still around today for a reason.They’re durable, reliable, and long-lasting! In fact, built-up … sun country job postings