If you own a commercial building in Greater St. Louis and are considering upgrades to your flat roof system, RRSA St. Louis provides superior built-up roofing supplies, professional installation, and repairs.
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.
Built-up roofs tend to provide excellent waterproofing and ultra-violet protection. Thanks to the aggregate top layer, they are also fire-resistant. Built-up roofing is generally low-maintenance and therefore costs little to maintain over its life.
Built-up roof membranes have been in use in the U.S. for more than 100 years. These roof systems are commonly referred to as “tar and gravel” roofs. BUR systems generally are composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. The number of plies in a cross-section is the number of plies on a roof: The term “four plies” denotes a four-ply roof membrane construction. Sometimes, a base sheet, used as the bottommost ply, is mechanically fastened. Built-up roofs generally are considered to fully adhered if applied directly to roof decks or insulation.
Modern flat roofing methods are single layer membranes that are focused on reflecting UV rays. Built-up roofing offers superior reliability and waterproofing, and finishing options are available to improve UV resistance. Additionally, the flexibility and ease of installation mean your company’s business won’t be interfered with while the long term warranty gives you peace of mind.
RRSA St. Louis are experts in all aspects of commercial roofing, including built-up roofing. We use the best products from top of the line manufacturers to ensure that your commercial property gets the highest quality built-up roof possible.
If this blog post has piqued your interest in exploring having your flat roof system of your Greater St. Louis commercial building upgraded to a built-up roof, give us a call today to set up your FREE commercial building inspection. The RRSA St. Louis commercial roofing professional who visits you will do a thorough inspection and sit down with you to go over built-up roofing choices and provide reasonable estimates of the total cost and time involved in upgrading your current commercial roof.
Serving Greater St. Louis, Chesterfield, St. Charles, O’Fallon