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BUR

The BUR (built-up-roof) system incorporates a double or triple layer of ply sheet interspersed with hot liquid asphalt over a fiberglass base sheet. Also referred to as a “hot tar” roof, this roofing product, while once quite common in the residential industry, today is found predominately in commercial applications. BUR roofs are available in the following installation methods:

BUR Style

Application

UV
Protective Coating

Manufacturer's

Warranty

(Years)

Realistic Life
Expectancy
(Years)

3-Ply and 4-Ply

Commercial flood coat

Required

10 - 20

10 - 15

3-Ply and 4-Ply

Tar and gravel / rock

Not required

10 - 20

10 - 15

3-Ply and 4-Ply

With granulated cap sheet

Not required

20

20

Pros

Below are links to several manufacturers’ sites. Remember that manufacturers’ web sites are designed to promote their products and will generally provide you with only positive product information.

You can count on Seattle Roof Advisor to provide unbiased advice.

Cons

The built-up roof system had long been the most common roof system used on low-pitch installations, but has been replaced in virtually all residential applications by bitumen-backed, single-ply and other membrane systems.

  • CertainTeed Corp.
  • GAF Materials Corporation
  • Malarkey Roofing Products
  • POLYGLASS
  • Texas Refinery Corp.
  • U.S. Intec

www.certainteed.com

www.gaf.com

www.malarkeyroofing.com

www.polyglass.com

www.texasrefinerycoatings.com

www.usintec.com

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The Process

 

 

ROOFING PRODUCTS

 

Pitched Roofs

 

Low-Pitch / Flat Roofs

 

► BUR

 

► Membrane

 

► Roof Coatings

 

► Torchdown

 

 

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