Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 25, 2013
Patent Application Number
13758077
Date Filed
February 4, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
A roofing system includes a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation, and a plurality of cover boards adapted for overlying the layer of insulation. Each insulation board includes a polymer foam material having a first density. Each cover board includes a material including polyisocyanurate, the material having a second density greater than the first. The foam material of the insulation boards may include, for example, polystyrene, polyurethane, or a phenolic material. The insulation boards and cover boards may include facers on top or bottom surfaces.
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