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Performance Criteria for Constructed Roof Systems (PCCRS)The purpose of PCCRS is to provide building owners and the roofing industry with conservative and dependable criteria for constructed roof systems that achieve cost-effective, long-term performance relative to the specific roof system type.PCCRS is intended to provide guidance. It is not an approval or certification of individual companies' procedures, products or services, nor is it intended to supplant warranties or other representations or perceptions of roof system service life. A council ("Council") has been established for the purpose of carrying out the administration, development and maintenance of PCCRS. The Council will appoint an individual Criteria Development Group (CDG) for each type of roof system for which a performance criteria is intended to be developed. Initially, only two CDGs have been appointed; built-up roof systems and spray polyurethane foam roof systems. Participation in public review PCCRS currently is seeking interested individuals to participate in the public review of PCCRS' first two draft criteria documents applicable to built-up membrane roof systems and spray polyurethane foam roof systems. Interested in participating? Click here to download the Participation in Public Review form. Participation in Criteria Development Group PCCRS is establishing two new Criteria Development Groups (CDGs) who will develop PCCRS' next two criteria documents applicable to EPDM single-ply membrane roof systems and PVC single-ply membrane roof systems. Interested in participating? Click here to download the Application for Criteria Development Group Membership form. PCCRS Vision Statement Vision: To provide performance criteria that effectively optimizes the service lives of long-term constructed roof systems. Defining Principles: Roof system performance criteria developed under PCCRS will include consideration of the following:
The purpose of PCCRS is to provide building owners and the roofing industry with conservative and dependable criteria for constructed roof systems that achieve cost-effective, long-term performance relative to the specific roof system type. PCCRS is intended to provide guidance. It is not an approval or certification of individual companies' procedures, products or services, nor is it intended to supplant warranties or other representations or perceptions of roof system service life. Methodology: The basis for developing roof system performance criteria is as follows:
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