September 2004

Keeping current with ratings | Tech Today

Tech Today 5 stars5 stars5 stars5 stars5 stars

Keeping current with ratings

by Mark S. Graham
Be the first to comment

Making a roof assembly compliant with fire- and wind-resistance ratings typically is critical to satisfying requirements of project specifications, contracts and building codes. However, determining the ratings for specific roofing products and assemblies often is difficult.

This month, I briefly will review the information regarding fire- and wind-resistance ratings that is available to roof assembly designers and explain some of the limitations of that information and the need for additional information.

UL directory

Underwriters Laboratories (UL) Inc. annually publishes its Roofing Materials and Systems directory, which includes detailed descriptions of roof assemblies that satisfy UL's requirements for listings or classifications. The 2004 edition...

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.