December 2008

Advances in asphalt

Advances in asphalt 4.7 stars4.7 stars4.7 stars4.7 stars4.7 stars

by James Baker
Be the first to comment

An oft-quoted definition from a sustainable low-slope roofing workshop held by Oak Ridge National Laboratory (ORNL), Oak Ridge, Tenn., describes a sustainable roof system as one that is "designed, constructed, maintained, rehabilitated and demolished throughout its life cycle with an emphasis on using natural resources efficiently and preserving the global environment." Quality asphalt low-slope roof systems, including built-up and polymer-modified bitumen roof systems, perform well with regard to these sustainability aspects.

Various factors related to built-up and polymer-modified bitumen roofing contribute to sustainability. The Asphalt Roofing Manufacturers Association (ARMA) has formed a sustainability council to examine these factors in greater detail. But much work remains to fully understand and quantify this complex subject.

A valuable byproduct

The asphalt used in roofing products is a byproduct of petroleum refining. This byproduct, known as asphalt flux, is the residue remaining after high-value fuels such as gasoline, kerosene, aviation fuels and furnace oils have been released from crude oil through atmospheric and vacuum distillation or fractionation. Asphalt flux is further processed into materials for the manufacture of asphalt shingles, mopping asphalt, asphalt-saturated roll roofing and...

Web exclusive: Click below for more information.
RICOWI's Hurricanes Charley and Ivan Wind Investigation Report, March 2006

Additional information about petroleum refining

To read the article in its entirety, please log in or register (registration is free).

Log in or register for FREE access to this article and other Professional Roofing online content.

Not a user?

Register now for free access
  • Full access to every article
  • Online Web exclusive information
  • Photo gallery
  • Breaking news
  • Online classified ads

Already a user?

Log in now

User name:



Login help
Click here to have your user name and password emailed to you.

Comments (0) Login to post a comment or rating
There are no comments posted.