Articles

• Performance criteria update, Professional Roofing magazine, December 2007
  
  
• Creating performance criteria, Professional Roofing magazine, September 2004
  
  
• NRCA's Performance Criteria for Constructed Roof Systems (PCCRS), Roofing Canada, Fall/Winter 2003
  
  
• NRCA's performance standards initiative, Professional Roofing magazine, September 2002