Johns Manville

Other

Christopher J Griffin

Joel Hazy

Raymond C Swann

Brad C Burdic

Duane Paradis

Thomas Bell

Jacob Heaps

Walter Alexander Johnson

Eric Olson

Thomas Justin Stock

Jordan Kortmeyer

Bryan Keith Nesti

Brenton Yancey

Kimberly R Tokarski

Joel Evan Hazy

A roofing membrane may comprise a water-impermeable insulation layer, and a binding layer coupled to the insulation layer. In a dry state, the binding layer may be non-tacky. In an activated state, the binding layer may be tacky.

Membranes with water-activated binding elements

Materials and methods for mitigating passive intermodulation. A membrane for reducing passive intermodulation includes a first polymeric layer, a second polymeric layer, and a continuous metal layer encapsulated between the first and second polymeric layers. A self-adhesive radio frequency barrier tape includes a waterproof polymeric top layer, a metal-containing layer adhered by an adhesive layer to the polymeric top layer, a pressure sensitive adhesive layer adhered to the metal-containing layer, and a release liner on a bottom surface of the pressure sensitive adhesive layer. A method of mitigating passive intermodulation includes passing a probe over an area of interest, the probe being sensitive to an intermodulation frequency of interest, and identifying a suspected source of passive intermodulation when the amplitude of the probe output exceeds a threshold at the frequency of interest. The method further includes covering the suspected passive intermodulation source with a radio frequency barrier material.

Method for mitigating passive intermodulation

Self-adhesive membrane for mitigating passive intermodulation

Method for mitigating passive intermodulation using roofing material with polymeric and metal layers

A method includes providing a production line configured for continuous fabrication of polymer or predominantly polymer roofing boards by setting and expansion of precursor materials on a conveyor. A first polymer or predominantly polymer material foam precursor is dispensed to the production line, and allowed to rise and at least partially set to form a foam core layer for an insulation board, the foam core layer for the insulation board having a first density. A second polymer or predominantly polymer material foam precursor is dispensed to the production line and allowed to rise and set to form a core layer for a cover board, the foam core layer for the cover board having a second density greater than the first density. The combined thickness of the foam core layer for the insulation board and the core layer for the cover board is set by constraining the expansion of the combined foam precursors using a downstream forming conveyor disposed above the rising foam precursors.

Roofing systems and methods

According to one aspect, a roofing system comprises a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation. Each of the plurality of insulation boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of insulation boards comprises polyisocyanurate foam having a first polyisocyanurate foam density. The roofing system further comprises a plurality of cover boards adapted for overlying the layer of insulation. Each of the plurality of cover boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of cover boards comprises polyisocyanurate foam having a second polyisocyanurate foam density greater than the first polyisocyanurate foam density. The greater polyisocyanurate foam density provides for a compressive strength to resist deformation.

According to one aspect, a roofing system includes a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation. Each of the plurality of insulation boards includes a first polyisocyanurate foam having a first foam density. The roofing system further includes a plurality of cover boards adapted for overlying the layer of insulation. Each of the plurality of cover boards includes a second polyisocyanurate foam having a second foam density, and the second foam density is greater than the first foam density. Each of the insulation boards and cover boards may have a facer on at least one major surface. The second foam density may be selected to provide the cover boards with a compressive strength to resist deformation.

A method includes dispensing a first polymer or predominantly polymer material foam precursor and allowing the precursor to rise and at least partially set to form a foam core layer for an insulation board, the foam core layer having a first density. The method further comprises dispensing a second polymer or predominantly polymer material foam precursor and allowing the second precursor to rise and set to form a core layer for a cover board, the core layer for the cover board having a second density greater than the first density. The second foam precursor may include polyisocyanurate. The method may also include feeding facer materials over the precursors to form facers on the core layers. Such insulation boards and cover boards may be cut to length and installed on a roof.

Manufacturing and assembly of roofing components

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 foam material that includes polyisucyanurate, the 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 roofing system may further include a waterproofing membrane adapted for overlying the cover boards. The insulation boards and cover boards may include facers on top or bottom surfaces.

Roofing system including roofing components and methods

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.

Roofing system including insulation and cover boards

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.

Roofing cover board, roofing panel composites, and method

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 foam material that includes polyisocyanurate or polyurethane, the foam material having a first density. Each cover board includes a material including polyisocyanurate or polyurethane, the material having a second density greater than the first. The roofing system may further include a waterproofing membrane adapted for overlying the cover boards. The insulation boards and cover boards may include facers on top or bottom surfaces.

A roofing system includes a layer of insulation boards overlying a roof deck, and a layer of cover boards overlying the insulation boards. The insulation boards include a polyisocyanurate or polyurethane foam material that has a first density. The cover boards include a polyisocyanurate or polyurethane material that has a second density. The second density is greater than the first. The roofing system may also include a waterproofing membrane overlying the cover boards.

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Aurora, CO, United States of America

Christopher J Griffin