Abstract: A construction safety screen system includes a flexible net member sized to cover an opening of a building, a plurality of straps attached to the flexible net member, and a plurality of oval snap hooks each being securable to the distal end of one of the plurality of straps and to one of a plurality of fasteners attached to the concrete building structure surrounding the opening.

Abstract: A series of parallel V-grooves are formed on the top surface of a new or existing top coat of lightweight insulating concrete of a roof deck. A slurry coat of formulated concrete is then applied to the top coat of lightweight insulating concrete at locations in between the parallel V-grooves, to repair cracks and holes and attach a base ply roof membrane, thereby eliminating the need for a base sheet and mechanical fasteners when installing a roof membrane system on the lightweight concrete deck of a roof structure. The formulated concrete slurry comprises a mixture of Portland cement (type I), cellulose, poly vinyl alcohol, and water. A base ply (modified or single ply) roof membrane having a sanded or fleece bottom side is set into a ¼ inch thick slurry coat of the formulated concrete to effectively attach the base ply roof membrane to the lightweight concrete deck.

Abstract: A series of parallel V-grooves are formed on the top surface of a new or existing top coat of lightweight insulating concrete of a roof deck. A slurry coat of formulated concrete is then applied to the top coat of lightweight insulating concrete at locations in between the parallel V-grooves, to repair cracks and holes and attach a base ply roof membrane, thereby eliminating the need for a base sheet and mechanical fasteners when installing a roof membrane system on the lightweight concrete deck of a roof structure. The formulated concrete slurry comprises a mixture of Portland cement (type I), cellulose, poly vinyl alcohol, and water. A base ply (modified or single ply) roof membrane having a sanded or fleece bottom side is set into a ¼ inch thick slurry coat of the formulated concrete to effectively attach the base ply roof membrane to the lightweight concrete deck.

Abstract: A lightweight composition is formed by combining and mixing Portland cement or other cementitous material with foam in order to create air pockets throughout the cementitious material. A foaming agent containing primarily or entirely soybean protein in liquid form is introduced with a pressurized flow of air and water in order to produce the foam.

Abstract: A slurry coat of formulated concrete is applied to a new or existing top coat of lightweight insulating concrete to repair cracks and holes and attach a base ply roof membrane, thereby eliminating the need for a base sheet and mechanical fasteners when installing a roof membrane system on the lightweight concrete deck of a roof structure. The formulated concrete slurry comprises a mixture of Portland cement (type I), cellulose, poly vinyl alcohol, and water. A base ply (modified or single ply) roof membrane having a sanded or fleece bottom side is set into a ¼ inch thick slurry coat of the formulated concrete to effectively attach the base ply roof membrane to the lightweight concrete deck.

Abstract: An apparatus for on-site manufacturing of lightweight concrete used for insulation in roof decks and roof systems of building structures. The apparatus is supported on a transportable trailer frame and includes a mixer, a concrete pump, and one or more tanks for holding a mixture of water and chemical products, such as foaming agents. The chemical agents/water solution is mixed with pressurized air according to a desired foam density and volume and is pumped through a foam cylinder ejector. The air/solution mixture exiting the ejector is directed into a carburetor which generates a foam product by mechanical impact of the air/solution mixture with beads contained in the carburetor. Concrete and the foam product are combined in the mixer, in accordance with a predetermined mixture ratio, and released into the concrete pump for forced discharge from the apparatus and application to a roof structure.

Abstract: In a roof system, a top coat of lightweight insulating concrete is anchored to an underlying base slurry coat of lightweight concrete and a metal, gypsum, tectum or concrete roof deck by installing anchoring devices at spaced intervals. The anchoring devices may be made of plastic, steel or aluminum and include a threaded shank extending upwardly from a base plate. The anchoring devices are installed by fastening the base plates to the underlying roof deck structure or by setting the base plates in the lightweight base concrete slurry coat so that the threaded shanks of the anchoring devices extend upwardly through holes in EPS board insulation and into the subsequently applied top coat of lightweight insulating concrete. The base plate and threaded shank effectively anchor the attachment of the lightweight insulating concrete top coat to the underlying base slurry coat and roof deck to enhance resistance to wind uplift forces.

Abstract: An apparatus for on-site manufacturing of lightweight concrete used for insulation in roof decks and roof systems of building structures. The apparatus is supported on a transportable trailer frame and includes a mixer, a concrete pump, and one or more tanks for holding a mixture of water and chemical products, such as foaming agents. The chemical agents/water solution is mixed with pressurized air according to a desired foam density and volume and is pumped through a foam cylinder ejector. The air/solution mixture exiting the ejector is directed into a carburetor which generates a foam product by mechanical impact of the air/solution mixture with beads contained in the carburetor. Concrete and the foam product are combined in the mixer, in accordance with a predetermined mixture ratio, and released into the concrete pump for forced discharge from the apparatus and application to a roof structure.

Abstract: A slurry coat of formulated concrete is applied to a new or existing top coat of lightweight insulating concrete to repair cracks and holes and attach a base ply roof membrane, thereby eliminating the need for a base sheet and mechanical fasteners when installing a roof membrane system on the lightweight concrete deck of a roof structure. The formulated concrete slurry comprises a mixture of Portland cement (type I), cellulose, poly vinyl alcohol, and water. A base ply (modified or single ply) roof membrane having a sanded or fleece bottom side is set into a ¼ inch thick slurry coat of the formulated concrete to effectively attach the base ply roof membrane to the lightweight concrete deck.

Abstract: In a roof system, a top coat of lightweight insulating concrete is anchored to an underlying base slurry coat of lightweight concrete and a metal, gypsum, tectum or concrete roof deck by installing anchoring devices at spaced intervals. The anchoring devices may be made of plastic, steel or aluminum and include a threaded shank extending upwardly from a base plate. The anchoring devices are installed by fastening the base plates to the underlying roof deck structure or by setting the base plates in the lightweight base concrete slurry coat so that the threaded shanks of the anchoring devices extend upwardly through holes in EPS board insulation and into the subsequently applied top coat of lightweight insulating concrete. The base plate and threaded shank effectively anchor the attachment of the lightweight insulating concrete top coat to the underlying base slurry coat and roof deck to enhance resistance to wind uplift forces.

Abstract: A device for use in the installation of lightweight concrete roof systems includes a base element having a substantially flat portion and a wire tie. The wire tie extends from the base element and terminates at opposite ends which may be formed in a ring or loop. In use, the base element is mechanically fastened to the bar joist, through the steel deck, of the roof system. The terminal ends of the wire tie are secured to steel-welded wire reinforcement fabric overlying a layer of lightweight concrete, thereby securing the lightweight concrete to the steel deck of the roof system and preventing separation of the lightweight concrete due to external forces such as wind sheer.

Abstract: An edge closure for installation on a roof structure is fabricated as an integral unit from a non-corrosive, durable material. The edge closure includes an anchoring flange for attachment to the roof structure, an upper flange with an upper longitudinal edge zone, and intermediate panel spanning between the anchoring flange and the upper flange, and a fascia portion integral with the anchoring flange and extending downwardly to a lower longitudinal edge zone. The anchoring flange and upper flange are spaced apart for receiving a thickness of insulative lightweight concrete therebetween. The upper and lower longitudinal edge zones are angled to provide added rigidity and strength to the edge closure.

Abstract: A wall closure for a vertical wall or parapet on a roof structure is fabricated as an integral unit from a non-corrosive, durable material. The wall closure includes an anchoring flange for attachment to a top end of the wall, upper flanges defining a mounting base for attachment of a wall coping, an intermediate portion between the anchoring flange and the upper flanges creating depth therebetween for ventilation of the roof system, and opposite side panels extending down from the upper flanges for overlapping attachment to the opposite sides of the wall, thereby enclosing the top end of the wall. The lower ends of the side walls are angled outwardly to provide added rigidity and strength to the wall closure.

Abstract: A roofing system provides a stronger bond than conventional roof systems to withstand greater uplift pressures in hurricane force winds, while also providing a sound fire rating. The system includes a non-corrosive metal blocking structure, including a perimeter edge closure that has an anchoring flange for attachment to the roof deck, a parallel upper flange and an intermediate flange extending perpendicularly between the upper and lower flanges. The system further includes lightweight insulating concrete applied to the roof deck and filled between the upper and lower flanges of the edge closure, an inter-ply sheet applied by torch or self-adhesive directly to the insulating lightweight concrete, and a torch applied cap membrane over the inter-ply sheet. Direct attachment of the inter-ply sheet to the lightweight insulating concrete without the use of hardware fasteners preserves the integrity of the underlying lightweight insulating concrete for future re-roofing.

Abstract: An assembly and method for venting a flat or low sloped roof system eliminates the need for a base sheet membrane and fasteners and provides a spaced arrangement of V-grooves formed in the top surface of a new or existing lightweight concrete deck. The V-grooves allow moisture to migrate to the perimeter of the roof and exit the roof system. Instead of attaching a base sheet membrane to the lightweight concrete deck using penetrating fasteners, the roof membrane plies are attached directly to the primed lightweight concrete deck by self-adhesion, heat welding or with the use of cold adhesives. This prevents damage to the structural integrity of the underlying lightweight concrete, while providing an improved roof venting system.

Abstract: A traffic signal apparatus is provided with solar panels, a battery source for powering light directional signals during a power outage and a charger linked to the solar panels for re-energizing the battery source. Changing of the light directional signals (i.e. red, yellow, green, arrow) is controlled by a timer connected to the battery power source. In a preferred embodiment, one or more 12 volt batteries, such as those used in an automobile, are connected in series for powering the light signals. The batteries, solar panel(s), charger, connecting cables and the timer may be installed to an existing conventional traffic light signal or, alternatively, on a temporary traffic light signal supported on a post for placement on the ground, preferably in the middle of the road, such as at an intersection.

Abstract: A device for use in the manufacture of lightweight concrete includes a first end having a reduced diameter portion for connection to a water supply line, an opposite second discharge end, and a cylindrical body between the first and second ends. An interior chamber within the cylindrical body has mesh screens at the opposite ends. Beads are filled within the interior chamber, between the mesh screens. In a preferred embodiment, the beads are formed of a plastic composition or stainless steel and range in diameter between four and seven millimeters. Water and a foaming agent, introduced under pressure through the first end of the device, are mixed and agitated while passing through the bead packed interior chamber to produce a resultant foam mixture of consistent bubble size. The foam mixture is discharged from the open second end of the device and is mixed with Portland cement to produce lightweight insulating concrete for use in the installation of roof decks of a building structure.

Abstract: An apparatus for on-site manufacturing of lightweight concrete used for insulation in roof decks and roof systems of building structures. The apparatus is supported on a transportable trailer frame and includes a mixer, one or more tanks for holding water and chemical products, such as foaming agents, and a concrete pump. The chemical agents and water are forced through a foam generating carburetor with pressurized air to produce a foam product. Concrete and the foam product are combined in the mixer, in accordance with a predetermined mixture ratio, and released into the concrete pump for forced discharge from the apparatus and application to a roof structure. An internal combustion engine drives hydraulic pumps which operate several components of the apparatus. Controls are provided for operating the several components, functions and operations of the apparatus.

Abstract: A device for use in the installation of lightweight concrete roof systems includes a base element having a substantially flat portion and a wire tie. The wire tie extends from the base element and terminates at opposite ends which may be formed in a ring or loop. In use, the base element is mechanically fastened to the bar joist, through the steel deck, of the roof system. The terminal ends of the wire tie are secured to steel-welded wire reinforcement fabric overlying a layer of lightweight concrete, thereby securing the lightweight concrete to the steel deck of the roof system and preventing separation of the lightweight concrete due to external forces such as wind sheer.

Abstract: Two specific types of ingredients are added to cold or hot melt asphalt or coal tar for the dual purposes of holding, reducing or complexing the obnoxious and toxic odors from asphalt while at the same time allowing a pleasant masking fragrance to predominate. The holding agents consist of various organic compounds which can bond or complex with and effectively hold onto other molecules. Typical complexing agents include dialkylgylcol alkyl ethers and dialkylphthalates. Typical fragrances include natural and synthetic oils or extracts such as lemon oil, orange oil, peppermint, spearmint, cinnamon, bubble gum and most other common fragrances. The concentrated extracts of fragrances consist of natural and synthetic materials having glycols, glycol ethers, alcohols, esters, aldehydes, ketones, and other compounds which can simply mask the obnoxious odors.