Roofing Specifications and Procedures The built-up roofing specifications and procedures contained in this manual are Koppers recommended guidelines for the installation of built-up roofing systems using products and components which have been manufactured or supplied by Koppers. They are for use only in connection with roofs which have been properly designed and constructed for use with the applicable built-up roofing system. Koppers 5-Year Standard Warranties are available for applications of new roofing materials over old roofing materials. Classic and BUR Warranties are not available for this application. The specifications and procedures set forth in this manual are presented in order to provide general information to experienced roof designers (including architects, roofing contractors and other roofing experts) who are knowledgeable about roofs and built-up roofing systems, as well as applicable codes, engineering and construction standards and other considerations relating to them. These specifications and procedures should not be used or relied upon by any other persons or entities. Koppers does not design roofs, and the design and engineering of any roof is the sole responsibility of the roof designer and not Koppers. The specification of a built-up roofing system in connection with any roof should be done only by experienced roof designers, and Koppers shall have no responsibility or liability relating to the specification of any built-up roofing system for use in connection with a particular roof. Neither the specifications and procedures contained in this manual nor any other statements contained herein are intended to constitute a warranty of any type or nature. The only warranties applicable to any roofing system are those expressly made in writing by Koppers in connection with and pursuant to the Koppers Built-Up Roofing Warranty Program. Any such warranties are expressly in lieu of all other warranties of any kind, type or nature, and are the exclusive warranties of Koppers with respect to (A) any roofing products or components manufactured or supplied by Koppers or, as appropriate, (B) any roofing system. Koppers hereby disclaims all other warranties, including, but not limited to, all warranties of merchantability and fitness for a particular purpose. Koppers further specifically disclaims any warranty related to the design of any roof. Koppers shall not be liable for any incidental or consequential damages relating to its roofing products and components of any roofing system.  Return to Roof Warranty Program