Latest News

RAPID RATINGS Training on Friday, February 3, 2017

This training is a requirement for becoming a CRRC Rapid Ratings laboratory, but is open to anyone who is interested. Registration is now closed. If you would like to be on the waiting list for a future training, please contact

Location: Lawrence Berkeley National Laboratory, Berkeley, California

The all-day course (including continental breakfast and lunch) will include the following:

  • A review of the theory of natural and laboratory aging of roofing materials.
  • Overview of the steps of the laboratory aging method (ASTM D7897).
  • Rapid Ratings Program overview: CRRC background information and review of CRRC natural and laboratory aging requirements.
  • A review of the CRRC approved standards for product aging.
  • Hands-on training (this is most of the day). More details on the evenbrite page

Dr. Ronnen Levinson Receives Marty Hastings Award

The Cool Roof Rating Council (CRRC) is pleased to announce that the recipient of the 2016 Marty Hastings Award is Dr. Ronnen Levinson of Lawrence Berkeley National Laboratory (LBNL). Dr. Levinson has been an invaluable technical resource to the CRRC for the last 15 years and the CRRC Board of Directors and Technical Committee are greatly appreciative of Dr. Levinson’s tremendous contributions. View the full press release here.

ANSI/CRRC S100 (2016) Approved

The 2016 edition of ANSI/CRRC S100 - Standard Test Methods for Determining Radiative Properties of Materials was approved by the American National Standards Institute on April 26, 2016. For more information please click here.