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License Agreement and Important Legal Notices and Disclaimers
National Roofing Contractors Association
EnergyWise Roof Calculator Online

Clicking the "I Agree" button below constitutes your acceptance and acknowledgment of the terms and conditions set forth below (the "License Agreement"). If you do not agree to the terms and conditions set forth in the License Agreement, you may not use the NRCA EnergyWise Roof Calculator software application (the "Calculator"). Once accepted, the License Agreement will govern each and every use of the Calculator. By accepting these terms and conditions, you acknowledge and agree as follows:
  1. Each time you use the Calculator, NRCA will grant you a one-time personal, nontransferable and nonexclusive license to use the Calculator. This license is valid for one-time use of the Calculator and automatically terminates upon delivery of the written report generated by the Calculator application (the "Report").
  2. The Calculator, the contents of the Calculator and the Report are copyrighted by NRCA. The license granted above is not a sale, and this License Agreement does not give you any rights to copyrights, trademarks and/or patents with respect to the Calculator.
  3. You may not copy, alter any of the text, or manipulate any aspect of the Calculator or the Report.
  4. Neither NRCA nor the organizations supporting the Calculator (collectively, the "Supporting Organizations") "approve" or "endorse" any specific products, methods, companies, practices or sources of information referred to or suggested by the Calculator. You should not reference the Calculator or do anything that in any way would imply such approval or endorsement.
  5. The calculations used in the Calculator are based on accepted practices, including those defined in the American Society of Heating, Refrigerating and Air-Conditioning Engineers' (ASHRAE) Fundamentals Handbook; ASHRAE 90.1 "Energy Standard for Buildings Except Low-Rise Residential Buildings," 1999, 2004, 2007 and 2010 Editions; ASHRAE 189.1 "Standard for the Design of High-Performance Green Buildings," 2009 Edition; International Code Council's International Energy Conservation Code (IECC), 2006, 2009 and 2012 Editions; and International Code Council's International Green Construction Code (IgCC), 2012 Edition. The Calculator may only be used for determining energy calculations pursuant to the "Prescriptive Building Envelope Option" under ASHRAE 90.1 and ASHRAE 189.1 and the "Specific insulation requirements (Prescriptive)" option under the IECC and IgCC. For more specific details and information, refer to ASHRAE 90.1 and ASHRAE 189.1, IECC and IgCC.
  6. The Calculator is intended to be a simplified guide. Complex energy calculations, such as solar heat gain and exterior shading considerations, are beyond the scope of the Calculator and intentionally have been excluded. For complex energy evaluation calculations, including evaluations of the entire building envelope, building usage, or changes to heating and air conditioning equipment, you must consult the ASHRAE Fundamentals Handbook or an experienced mechanical engineer.
  7. The Calculator relies on your input to generate a Report intended to provide a graphical method of constructing roof assemblies to evaluate thermal performance and estimated energy costs under normal operating conditions. The Report applies only to the specific building identified by you and relies solely on the input supplied by you. Any misinformation, miscalculations, mistakes or changes in the information you enter into the application may affect the results, accuracy, reliability, safety factor and/or other aspects of the Report.
  8. By accepting the terms of this License Agreement and using the Calculator, you specifically acknowledge that neither NRCA nor the Supporting Organizations is undertaking to render specific professional advice. You must rely solely on your own judgment or consult a technically competent roofing professional and/or an experienced mechanical engineer to determine whether the information included in the Report is appropriate for your particular purpose. Neither NRCA nor the Supporting Organizations assume responsibility for any decision made by you relating to the suitability or use of the Calculator or the Report.
  9. Neither NRCA nor the Supporting Organizations make any guarantee, representation or warranty, express or implied, at law or in equity, and NRCA and the Supporting Organizations expressly disclaim any and all such guarantees, representations or warranties whatsoever, as to the validity, accuracy or sufficiency of the information supplied by the Calculator and/or the Report and assume no responsibility or liability in connection therewith. NRCA and the Supporting Organizations assume no liability or responsibility in connection with the use or misuse of the Calculator or information included therein or supplied thereby or in connection with any modifications to or adaptations of the Calculator and/or the Report by you or any other party and expressly disclaim any such liability or responsibility.
  10. You expressly assume all risk of loss, harm or injury resulting from the use or misuse of the Calculator and/or the Report. Additionally, the suggestions and information provided in the Report may not be appropriate in all instances and requires verification and use by technically competent roofing design professionals and/or an experienced mechanical engineer.
  11. Links or pointers connecting the Energy Wise Roof Calculator Web site with other Internet sites are provided as a courtesy only and do not imply, directly or indirectly, the endorsement, sponsorship or approval by NRCA or the Supporting Organizations of the linked site, the company, organization or individual operating the site, or any product, service, company or organization referenced in the site. In general, any Web site that has an address (or URL) that does not contain "nrca.net" or "specright.net" is a linked Web site. The content of any linked site does not necessarily reflect the opinions, standards or policies of NRCA. NRCA assumes no responsibility or liability for the accuracy or completeness of content contained in any linked site or for the compliance with applicable laws of such linked sites.
  12. You acknowledge and accept the foregoing limitation of liability and disclaimers and agree that neither NRCA nor the Supporting Organizations is responsible for injuries, claims, losses or damages to you or third parties arising, directly or indirectly, out of your use of the Calculator and/or the Report.