Bmic LLC

Building Materials Investment Corporation

Jeffrey Avitabile

Walter Zarate

Tim Manasterski

Eric Richard Anderson

Li-Ying Yang

Daniel Podewils

Peter Campbell

Joseph Nigro

Brian A Davis

Matthew Gimpert

Sudhir B Railkar

Yan Zheng

Yixi Xiao

Sudhir S Railkar

Brian E Duffy

Sudhir Railkar

Olan Thomas Leitch

Ming-Liang Shiao

Adem Chich

Luis Duque

Breck Hudson

A roofing composite membrane includes a base layer including a first thermoplastic polyolefin. A weight of the base layer is between 5 and 25 grams per square foot. A coating layer at least partially coats the base layer. The coating layer includes at least one inorganic additive, and a second thermoplastic polyolefin including polypropylene and having a melt flow rate between 0.5 grams per 10 minutes and 12 grams per 10 minutes.

Composite membrane for building applications

A vent is disclosed for use in ventilating attic spaces beneath a hip roof. The vent is configured to be installed along a hip of the roof overlying and covering a ventilation slot. The vent includes an elongated laterally flexible top panel from which baffle arrays depend. The baffle arrays include a plurality of curved vanes that arc away from the slot. The vanes are configured to redirect wind-blown rain and snow away from the slot and block the migration of rain and snow through the vent. Filler strips can be attached beneath the edge portions of the vent. The filler strips conform to underlying shingles when the vent is installed to fill gaps that might be formed between the vent and the shingles. A weather filter can be positioned over some of the baffle arrays to allow attic air to pass but prevent ingress of blown snowflakes and raindrops.

Hip vent

A roofing system including a cap shingle and methods of producing a cap shingle and forming a roof are disclosed. In one embodiment, the cap shingle can include at least one layer of shingle material including an upper surface having a headlap portion and an exposure portion, and a lower surface. A sealant can be applied along the lower surface and a sealant attachment zone can be positioned along the upper surface of the at least one layer of shingle material between the headlap and exposure portions. The sealant attachment zone can be configured to contact a sealant applied along a lower surface of a next cap shingle to promote adhesion between the cap shingles installed along a ridge, hip, or cap of the roof.

Cap shingles for roofing systems

A vent is disclosed that is particularly suited to use in ventilating attic spaces beneath a hip roof. The vent is configured to be installed along a hip of the roof overlying and covering a ventilation slot formed through the roof deck along the hip. The vent includes an elongated laterally flexible top panel from which baffle arrays depend. The baffle arrays are formed of a plurality of depending arcuately curved vanes that arc away from the vent. The vanes are aerodynamically shaped to redirect wind-blown rain and snow away from the vent and are configured to block the migration of rain and snow through the vent. A pair of spongy conformable filler strips is attached beneath the edge portions of the vent. The filler strips conform to the shapes of underlying shingles when the vent is installed to fill any gaps that otherwise might be formed between the vent and the shingles. A weather filter drapes over some of the baffle arrays to allow attic air to pass but prevent ingress of blown snowflakes and raindrops.

A method includes obtaining a roofing membrane. A first layer of the roofing membrane is applied along a length of a roofing substrate covering a first portion of the roofing substrate. At least a first edge of the first layer is fastened to the roofing substrate. A second layer of the roofing membrane is applied over the first layer along the length of the roofing substrate such that a first edge of the second layer overlies the second edge of the first layer. The first edge of the second layer and the second edge of the first layer are fastened to the roofing substrate using a second fastener in a fastening zone along the length the roofing substrate. The second layer is reoriented such that the second layer overlies the fastening zone and covers a second portion of the roofing substrate adjacent the first portion of the roofing substrate.

Membrane installation methods

A ridge ventilation system includes a plurality of ridge vent sections configured to be arranged end-to-end along the ridge of a roof covering a vent slot formed therealong. Each ridge vent section has an elongated longitudinally flexible top panel with a central portion, edge portions terminating at extreme edges of the top panel, and ventilation grids extending beneath and along the edge portions spaced from extreme edges thereof. The space between the extreme edges of the top panel and the ventilation grids forms or defines an overhang configured to receive edges of shingles in a course of shingles installed next to the vent section and to inhibit the edges of the shingles from rising up. The ridge vent sections also have depending deflectors for deflecting blowing rain and snow that might enter through the ventilation grids and filter fabric may be affixed to the bottom of the ridge vent sections to provide additional deflection of rain and snow. The ridge ventilation system is particularly useful with slate or slate-style roofs and the vent sections are sized so that ridge cap slates extend beyond the extreme edges of the sections to hide substantially the ridge ventilation system from view.

Hidden ridge vent for slate roofs

Growing community of inventors

Lodi, NJ, United States of America

Jeffrey Avitabile