Abstract: Pressure roller and heating element combination for a welding apparatus and a method designed to weld a first thermoplastic sheet laid on the deck of a roof structure and secured to the deck by a line of fastening means, and an overlapping second thermoplastic sheet disposed over the line of the fastening means. The pressure roller includes a distal end, a proximal end, and a center portion which defines a groove. The groove is provided with an elastomeric cushion to smoothly ride over the line of fastening means and expel air from between welds produced on both sides of the fastening means when the apparatus is advanced in tandem with a heating element longitudinally along the overlapping portions of the thermoplastic sheets.

Abstract: Pressure roller and heating element combination for a welding apparatus and a method designed to weld a first thermoplastic sheet laid on the deck of a roof structure and secured to the deck by a line of fastening means, and an overlapping second thermoplastic sheet disposed over the line of the fastening means. The pressure roller includes a distal end, a proximal end, and a center portion which defines a groove. The groove is provided with an elastomeric cushion to smoothly ride over the line of fastening means and expel air from between welds produced on both sides of the fastening means when the apparatus is advanced in tandem with a heating element longitudinally along the overlapping portions of the thermoplastic sheets.

Abstract: Apparatus and process for coating a continuously advancing web with a dry or wet coating material on a conveyor belt. The apparatus having a hopper which contains an agitator, a brush and a knurled roll to accurately dispense the coating material to an applicator which is positioned on a carousel. By rotating the carousel, the coating in the form of stripes, bars or a uniform layer can be varied at angles 0° to 90° on the continuously advancing web.

Abstract: The variegated shingle comprises a shingle layer having front and rear surfaces the front surface including a butt portion and a headlap portion. The shingle layer contains granules on the front surface forming a plurality of horizontal striations providing gradations having color values ranging from light to dark extending between a leading edge of the butt portion and an upper portion thereof. The striations include an upper striation along the upper portion, a lower striation closer to the leading edge, and an intermediate striation between the upper and lower striations. The upper striation is darker in color value than the lower striation, whereas the intermediate striation is no darker in color value than the upper striation and no lighter in color value than the lower striation. The color values of at least one of the upper, lower, and intermediate striations vary across the granule layer.

Abstract: Apparatus and process for coating a continuously advancing web with a dry or wet coating material on a conveyor belt. The apparatus having a hopper which contains an agitator, a brush and a knurled roll to accurately dispense the coating material to an applicator which is positioned on a carousel. By rotating the carousel, the coating in the form of stripes, bars or a uniform layer can be varied at angles 0° to 90° on the continuously advancing web.

Abstract: A process for making a roofing ply roll or sheet product which comprises pretreating a fiber glass mat with water to provide greater than 2 and less than 10 wt. % water therein, and impregnating said moisturized mat with molten asphalt, the amount of asphalt retained in said mat being directly related to the amount of water present in the pretreated mat. An ASTM D 2178 Type VI roofing ply sheet comprising a fiber glass mat impregnated with asphalt and having a tensile strength of at least 60 lbf/in CMD and a flexibility of about 0.2 or less in inch/lb stiffness modulus MD.

Abstract: Soffit ventilation system in a building having a horizontal soffit with a plurality of vents and a strip of mat of randomly oriented synthetic fibers covering the attic-facing side of the soffit. An alternative embodiment has a panel of air-impermeable material having upper and lower sections. The strip of mat of randomly oriented synthetic fibers is sandwiched between the lower section and the vertical side of the walls allowing the passage of air into the attic through an opening between the lower section and the upper section of the air-impermeable panel.

Abstract: An improved roll roof membrane for use in commercial applications, i.e., flat and low pitch roof structures, and a method for the preparation thereof. The roof membrane comprises a support sheet, and top and bottom layers comprising APP modified bitumen, the top APP modified bitumen layer having a selvage edge disposed along one side of the membrane and the bottom APP modified bitumen layer having a second selvage edge disposed along the opposite side of the membrane. Each of the selvage edges have a series of embossed ridges and valleys adapted to accept adhesives, the valleys extending substantially through the APP modified bitumen layer to the support sheet. The membrane exhibits excellent peel strength with an adhesive, thereby eliminating the need to use a torch during installation in commercial roofing applications.

Abstract: A trilaminated roofing shingle comprising:(a) an anterior layer consisting essentially of a rectangular, granular surfaced shingle sheet having an undivided headlap portion and a butt portion comprising a plurality of tabs of an average given breadth separated by spaces approximately 0.50 to 1.

Abstract: This invention relates to a self-sealing roofing member which is a shingle or siding carrying adhesive in a horizontal area extending from the leading side edge to the rear side edge of one surface of the member, the opposite surface of said member having a complementary convex channel extending from the leading side edge to the rear side edge corresponding to the adhesive area; said channel being in contact with an adhesive release material in the area corresponding to the adhesive.

Abstract: This invention relates to a non-perforated, essentially orthogonal hip and ridge shingle having stepped side portions which shingle is foldable along its longitudinal axis over the ridge of a pitched roof and is additionally foldable upon itself on a plane perpendicular to its longitudinal axis.

Abstract: The present invention relates to a laminated roofing and siding shingle unit including (a) a rectangular shingle sheet having an undivided headlap portion and a lower butt portion divided into tabs of a given color which are uniformly spaced from each other, each tab having two opposing bottom corners defining the bottom boundary of the butt portion and (b) an elongated undivided top strip of the same or a contrasting hue or color having indentations at its bottom edge conforming in outline to the corners of the tabs, said strip affixed over the shingle sheet at the upper tab boundaries where the tabs depend from the headlap and positioned in an offset manner so that each indentation corresponding to a corner of a tab is centered above the tab immediately below.

Abstract: A trilaminated roofing shingle comprising:(a) an anterior layer consisting essentially of a rectangular, granular surfaced shingle sheet having an undivided headlap portion and a butt portion comprising a plurality of tabs of an average given breadth separated by spaces approximately 0.50 to 1.

Abstract: Tile roof vent for covering the opening of the ridge of an undulating tile roof. The vent includes two panels spaced from each other, each of which has a hard plastic sheet with a lower portion and an upper portion. To the underside of the lower portions are affixed an air-permeable mat and optionally a layer of foam rubber which conform to the undulating configuration of the tile roof. The lower portions of the hard plastic sheets are reinforced by stiffeners integral with the hard plastic sheet and also contain vent holes for exhausting air from the attic space.

Abstract: Soffit ventilation system in a building having a horizontal soffit with a plurality of vents and a strip of mat of randomly oriented synthetic fibers covering the attic-facing side of the soffit. An alternative embodiment has a panel of air-impermeable material having upper and lower sections. The strip of mat of randomly oriented synthetic fibers is sandwiched between the lower section and the vertical side of the walls allowing the passage of air into the attic through an opening between the lower section and the upper section of the air-impermeable panel.

Abstract: A roof ridge ventilator made of a flexible unitary plastic panel adjustable to the configuration of various roof pitches having: Z-shaped and Y-shaped supports spaced from and alternating each other supporting the panel over the roof; ventilation means of rows of vent slots and slats running longitudinally on the two sides of the panel in which the slots and slats have trapezoidal configurations; vertical exterior baffles integral with the vent slats and running parallel thereto; and baffle extenders integral with the exterior baffles and at an angle of from about 130.degree. to about 160.degree. from the plane of the vertical exterior baffles.

Abstract: This invention relates to a composite shingle which includes (a) a rectangular shingle sheet having an undivided headlap portion and a lower butt portion which is divided into spaced apart tabs and (b) an elongated backup strip of hue or color contrasting with said shingle sheet, positioned under the tabs of said butt portion and secured to the lower portion of the headlap, the bottom edge of said strip conforming in outline to the bottom edge of said tabs and extending below said tabs at a distance equal to the spaces between the tabs, so as to form a uniform border around tabs.