(BUR Roofing Systems)
Built-Up Roofing (BUR) Built up roofing systems, referred to by the acronym BUR are one of the oldest and most durable systems available due in large part to the success and proven reliability of BUR. The stock of 20, 30 and 40-year-old BUR roofs still in excellent condition attests to this fact.
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. Its multiple layers provide extra protection and perform well in extreme weather conditions. Built-up roofs are especially resistant to damage from wind, hail and driving rain.
They are easy to repair and ideally suited for applications requiring a high level of redundancy. 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 be fully adhered if applied directly to roof decks or insulation.
Full removal of the existing roof, the amount of slope the roof has, weather conditions, as well as several other criteria contribute to the longevity of a roof’s service life. Typically, if you remove an old roof down to the deck before installing a new one, then the new roof will last longer because you can identify and repair any damaged decking.
Also, the steeper the slope and the less severe the weather conditions, the longer a roof will last. High winds and hail can do a roof in rather quickly. But remember, the number one ingredient to a good roof system is proper installation.
When purchasing a new roof system, there will be two warranties to consider. First, there will be the manufacturer’s warranty. In general, these warranties cover defects in the manufacture of the roof membrane. Once the project is complete, be sure the contractor provides you with a certificate for your records. Second, the roofing contractor will provide you with a warranty covering his workmanship. Typically, this will cover installation and related issues. The warranty should contain what items are covered and what will void them. Many contractors offer one year or two years of coverage; however, we offer up to seven years depending upon the system.
Multi-Layer Protection – the multiple layers of bitumen and bitumen saturated “felts” make a water-resistant barrier capable of providing many years of reliable protection from the elements
UV Protection – BUR roofing membranes can be protected from solar radiation by embedding gravel in the bitumen, applying a surface coating or applying a granular-surfaced “cap” sheet
Thermal Performance – Built-up roofing systems exhibit exceptional resistance to the conduction of heat between the exterior and interior of a building, resulting in noticeable reductions in heating and cooling costs
Fire and Uplift Resistance – Built-up roofing systems are tested through Factory Mutual Research Corporation to meet very strict fire resistance requirements and ensure adequate uplift resistance under extreme wind conditions
Economy – Compared to other high performance commercial roofing systems, built-up roofing is one of the best investments on the market due to its competitive cost per year of expected service life
Installation, must be highly trained
Asphalt vapors when installing it
Repairs should only done by skilled technicians
You Can Instantly Discover How Much Your Roof Will Cost And How Long It Will Take When You Get A Free And Precise Estimate Of Your Roof.
A Division Of Royalty Companies
425 Fairvilla Rd. Orlando, FL 32808
407-841-6471
Monday – Friday 8:00am – 4:00pm
