Roofing cover board, roofing panel composites, and method
AssigneeJohns Manville
InventorsDuane Paradis, Christopher J. Griffin, Raymond C. Swann, Joel Evan Hazy, Brad C. Burdic
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Abstract
A cover board composite for overlying insulation of a roofing system includes a high-density core layer that is at least predominantly of a polymer material, a facer overlying and bonded to a bottom major surface of the core layer, and a reinforcement interposed between the facer and the bottom major surface of the core layer to coincide with a fastener pattern for securing the cover board composite to a roof deck and increase a per-fastener wind-uplift pull through rating for the cover board composite.
Claims16
A cover board composite for overlying insulation of a roofing system, comprising:
- a high-density core layer that is at least predominantly of a polymer material with a density between 4 lbs/ft3 and 25 lbs/ft3 and a thickness between about 0.08 inches and about 0.75 inches;
- the core layer having a length, a width, and a thickness;
- the core layer having a top major surface and a bottom major surface that are each defined by the length and the width of the core layer;
- a facer overlying and bonded to the bottom major surface of the core layer and forming the bottom major surface of the cover board composite;
- a reinforcement interposed between the facer and the bottom major surface of the core layer to coincide with a fastener pattern for securing the cover board composite to a roof deck and increase a per-fastener wind-uplift pull through rating for the cover board composite;
- and a fiberglass mat face covering and bonded to the top major surface of the core layer.
A method of making a prefabricated cover board composite for overlying insulation of a roofing system, comprising:
- forming a cover board comprising a high-density core layer that is at least predominantly of a polymer material having a density between 4 lbs/ft3 and 25 lbs/ft3 and a thickness between about 0.08 inches and about 0.75 inches in a process wherein the core layer formed has a width, a thickness, a length, and a top major surface and a bottom major surface that are each defined by the length and the width of the core layer, a top facer that is a fiberglass mat facer is applied and bonded to the top major surface of the core layer;
- and
- applying and bonding a bottom facer to the bottom major surface of the core layer with a reinforcement interposed between the bottom facer and the bottom major surface of the core layer to coincide with a fastener pattern for securing the cover board composite to a roof deck and increase a per-fastener wind-uplift pull through rating for the cover board composite.
Dependencies are inferred from the claim text.