<https://massachusettsroofing.contractors/roofing-warranty-instructions/koppers-roof-warranty-claim/>
<http://schema.org/description>
"Contact the Warranty Service Department at 1-800-468-9629 You will need to provide your warranty number Provide building name. Roof Identification Building contact and telephone number. Provide your name and telephone number. Koppers Roof Warranty Claim"
<https://massachusettsroofing.contractors/roofing-warranty-instructions/koppers-roof-warranty-claim/>