CA2597206CCA 2597206CA2597206ACA2597206CCA 2597206 CCA2597206 CCA 2597206CCA 2597206 CA2597206 CA 2597206CA 2597206 ACA2597206 ACA 2597206ACA 2597206 CCA2597206 CCA 2597206C
Authority
CA
Canada
Prior art keywords
underlayment
board
channel
top edge
bottom edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Pactiv LLC
Original Assignee
Pactiv LLC
Kingspan Insulation LLC
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Filing date
Publication date
Application filed by Pactiv LLC, Kingspan Insulation LLCfiledCriticalPactiv LLC
Publication of CA2597206A1publicationCriticalpatent/CA2597206A1/fr
Application grantedgrantedCritical
Publication of CA2597206CpublicationCriticalpatent/CA2597206C/fr