The present invention discloses an improved light transmitting plastic panel (100) used in buildings for providing a variable daylight either during a day or in various areas of the building. The light transmitting plastic panel (100) consists of two transparent plates (102A, 102B) and a plurality of transparent hollow cells of V-type (104A, 104B) and rhombus shaped cells (106) located in between these plates (102A, 102B). In particular, a structure of the hollow cells is a repetitive sequence of one rhombus cell (106) in between two V-type cells (104A, 104B). Further, some of the hollow cells are made opaque with a predetermined pattern. With this specific structure, the variable daylight is achieved based on a time of day. In another aspect of the invention, differential daylight is provided for different areas of the building by forming a non-continuous flow pattern of opaque hollow cells across the length of the light transmitting plastic panel (100).

The present application is directed to Large Enclosed Secure Greenhouse Structure Atrium/Hybrid Greenhouse Buildings that have the appearance of a new modern industrial building that will provide a complete agricultural growing facility with an office, maintenance and dry storage spaces. The roof and walls of the greenhouse area have a continuous sealed chamber through transparent open web joists and girders, with controlled sunlight transmission along with heat and cold circulation. More particularly, the Atrium/Hybrid Greenhouse Building provided is constructed using a number of joist and girder systems configured to support transparent reinforced roof, wall and ceiling panels, assembled in a way that provides maximum daylight transmission and significant insulating properties, enabling the Atrium/Hybrid Greenhouse Building to be an effective and economical grow-house in harsh environments and in areas with snowfall or widely varying temperature ranges. The air in the building will be filtered through a system capable of filtering out a variety of particle matter including pesticides and herbicides with clean rooms between separate growing areas and exit areas. The Atrium/Hybrid Greenhouse Building provided is constructed using a number of joist and girder systems configured to support transparent reinforced roof, wall and ceiling panels.

A daylight illumination system for integration into a building or larger vehicle comprises a translucent facade element (800) containing a glass sheet and a light redirection element (302 or 708), and a light transport channel (801) for guiding light about horizontally into an interior of the building, the light transport channel comprising one opening attached to the interior side of said facade element and at least one opening towards the interior of the building, characterised in that the light redirection element (302 or 708) is formed as a structured polymer film or sheet attached to a glass sheet of the facade element (800) and is configured for changing the direction of incident light into the about horizontal light transport channel.

A daylighting panel for integration into a building or larger vehicle comprises a translucent facade element (800) containing a glass sheet and a light transport channel (801) for guiding light about horizontally into an interior of the building, the light transport channel comprising one opening attached to the interior side of said facade element and at least one opening towards the interior of the building equipped with a luminaire (807), characterised in that the inner walls including the rear end are covered by a reflecting layer (808).

The invention relates to fixed glazing for a building, comprising at least one glass pane, for example triple glazing. According to the invention, the glass pane is directly inserted in the adjacent building structure without interposing a frame that consists of a rigid material, and/or it is inserted in the laterally adjacent insulation of the building structure.

A ventilated solar panel system mounted on a roof of a building (1), comprising a plurality of joists (12, 112) arranged substantially normal to an upper ridge (14) of the roof, and extending from the upper ridge (14) to a lower region of the roof, and a set of rectangular solar panels (2, 13), arranged on and supported by the joists (12, 112). The system further comprises a set of electrical fans (25), each fan (25) being arranged in the lower region of the roof and being aligned with one of the joists (12, 112), wherein each fan (25) is configured to create a flow of air towards the ridge (14), and wherein each joist (12, 112), in an end facing one of the fans (25), is formed with a dividing edge (32, 132) configured to divide the flow of air into two sub-flows (26a, 26b), a first sub-flow (26a), directed to a first side of the joist (12, 112), and a second sub-flow (26b) directed to a second side of the joist (12, 112), opposite to the first side.

A ventilated solar panel system mounted on a roof of a building (1), comprising a plurality of joists (12, 112) arranged substantially normal to an upper ridge (14) of the roof, and extending from the upper ridge (14) to a lower region of the roof, and a set of rectangular solar panels (2, 13), arranged on and supported by the joists (12, 112). The system further comprises a set of electrical fans (25), each fan (25) being arranged in the lower region of the roof and being aligned with one of the joists (12, 112), wherein each fan (25) is configured to create a flow of air towards the ridge (14), and wherein each joist (12, 112), in an end facing one of the fans (25), is formed with a dividing edge (32, 132) configured to divide the flow of air into two sub-flows (26a, 26b), a first sub-flow (26a), directed to a first side of the joist (12, 112), and a second sub-flow (26b) directed to a second side of the joist (12, 112), opposite to the first side.

The advanced cool roof can make up the entire roof of a building or vehicle, or be integrated into a portion of said roofs. This invention utilizes and reduces the amount of solar radiation that enters a building or vehicle via the roof. This system consists of a water holding tank or plurality of tanks, thermal collectors, fire sprinkler heads and various glazing options. Said thermal collectors are contained between the rafters or trusses, and takes advantage of thermal syphoning to store energy in said tank or plurality of tanks. Additionally, this roof system can function as a fire suppression apparatus and a skylight apparatus that allows natural light into the structure, and may be integrated with LED lighting to illuminate said glazing and interior space. The exterior upper covering may consist of a glazing material like tempered glass coupled with additional roofing elements or standard upper covering assemblies.

An exemplary controlled environment greenhouse may include an inner membrane defining an interior space and having at least one opening. The greenhouse may also include an outer membrane arranged outside of the inner membrane to define an air gap therebetween. The greenhouse may further include at least one fan configured to draw air from within the interior space through the at least one opening into the air gap, and recirculate the drawn air back into the interior space. The greenhouse may further include at least one heat exchanger configured to enable heat transfer between the drawn air and a heat transfer medium. The greenhouse may have a dome-shaped or arcuate cross-section.

In one embodiment, a multiwall sheet comprises: non-intersecting polymer walls comprising outer layers and transverse layers. The transverse layers intersect the walls to form cells. The multiwall sheet has a non-uniform cell density. In another embodiment, a multiwall sheet can comprise: non-intersecting polymer walls comprising outer layers and a transverse layer and/or a divider. The transverse layer and/or the divider extends from one of the polymer walls to another of the polymer walls to form cells. The multiwall sheet has a non-uniform cell density. In yet another embodiment, a multiwall sheet comprises: non-intersecting polymer walls comprising outer layers and transverse layers. The transverse layers intersect the walls to form cells. The multiwall sheet has a different number of inner layers, transverse layers, and/or dividers, in different portions of the sheet. The multiwall sheets can be used, for example, in a naturally light structure.