Built-Up & Modified Bitumen Roof Systems
Built Up (BUR)
A Classic But Effective Approach
To A Roofing Solution
WHAT IS A BUR ROOF SYSTEM?
Built up roof membranes, referred to by the acronym BUR, 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. Built-up membrane installation for commercial roofing systems can either be hot applied or cold applied using modified asphalt.
TYPES OF BUR ROOF SYSTEMS
BUR roof systems come in two basic types, asphalt and coal tar, and three basic components: the waterproofing component, the reinforcing component, and the surfacing component which is used to protect the other components from the elements.
EXAMPLES OF BUR ROOF SYSTEMS
Modified Bitumen (MB) Roof Systems
A Heavyweight Solution That
Can Take The Punch
WHAT IS A MODIFIED BITUMEN SYSTEM?
Polymer-modified roof membranes are composed of reinforcing fabrics that serve as carriers for the hot polymer-modified bitumen as it is manufactured into a roll material. MB roof system membranes are composed of multiple layers, much like BUR membranes. MB roof systems typically are installed as a two-ply system and almost always are fully adhered.
TYPES OF MB ROOF SYSTEMS
The two general types of polymer modified bitumen membrane systems are Atactic Polypropylene (APP) and styrene butadiene styrene (SBS). Each of these polymer-modified membranes differ in their chemical characteristics. Both types are heavyweight membranes reinforced with either polyester, fiberglass or a combination of both.
EXAMPLES OF MB ROOF SYSTEMS
Inspection & Consultation Services
Done Right By Professionals You Can Trust.
Whether you own a small business around the corner or you manage multiple facilities, Schools, Hospitals or Manufacturing Facilities, Wood Roofing can customize an annual or bi-annual Inspection program to meet your needs. Both fee based and non-fee based programs are available to help you manage and forecast your roof and building envelope needs for the future.
While our core business is within a 90 mile radius of Des Moines, we do travel a 7 State area of the upper Midwest for fee based inspections and facility reports.
Our decades of experience can provide consultation and problem solving recommendations to a wide variety of professionals in the construction industry. We specialize in consultation services for architects, building owners, organizational administrators, property managers and engineers. Our services are tailored to ensure our expertise knows what it is talking about and can provide the solutions you are looking for.
Need An Inspection Or Consultation Service? Submit a ticket with our online form and a service professional will get back to you within 24 hours. You can also call us at 515.244.2711 for a quicker response.