October 2002
Search    

Updated steep-slope standards | Technology Today

Technology Today not ratednot ratednot ratednot ratednot rated

Updated steep-slope standards

by Mark S. Graham
Be the first to comment


ASTM International recently changed its material standards that apply to steep-slope roll-roofing and underlayment products. If you specify, procure or install steep-slope roof systems, I encourage you to become familiar with these changes.

Roll roofing

In 2001, ASTM published a material standard applicable to asphalt-saturated organic felt products commonly used in roll-roofing applications. The standard is designated as ASTM D6380-01, “Standard Specification for Asphalt Roll Roofing (Organic Felt).” (“-01” designates the year of publication; in this case, it is 2001.)

ASTM D6380-01 provides three class designations, Class S, Class M and Class WS, defining smooth-surfaced, mineral granule-surfaced and wide-selvage-edge roll products, respectively. These classes further are divided into types. Classes S and WS include Types III and IV designations, and Class M includes a Type II designation only. These designations differentiate among products within the same class based on products’ minimum net...



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 professionalroofing.net user?

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

Already a professionalroofing.net user?

Log in now

User name:

Password:

 


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.

NRCA NRCA