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| Heat releaseable ceiling support |
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Greenhouse roof glazing system
| Details |
Inventors: Phillips, Robert D.;
Assignee: Innovative Greenhousing Systems, Inc. (Atlanta, GA)
Primary Examiner: Stephan; Beth A.
Assistant Examiner: Glessner; Brian E.
Attorney, Agent or Firm: Deveau; Todd Troutman Sanders, LLP
A commercial greenhouse roof and roof glazing system that maximizes the intake of direct winter sunlight while managing spring, summer and fill sunlight to similar levels so that continuous produce and other crops can be grown. This system has transparent corrugated roofing sheets with north and south facing sections running in an east/west direction, where portions of the outer face of the outer glazing sheet are coated, insulation separates each sheet at locations of top surface coating, gas spaces separate each sheet at locations of no coating, and reflective material coats the interior surface of the interior sheet at portions of insulation. This system has no moving parts other than the movement of the sun in relationship to the structure. The color of the sunlight spectrum is split in the summer months so that the photosynthetic active portion is maximized in summer months leaving the unwanted summer heat gain outside of the structure. Since all of the light is taken in through the root the walls can be of conventional architectural materials which allows the total growing facility to be placed at grade level or on the top floor of urban area buildings. This eliminates the need for much of the packing and fossil fuel-run distribution systems that typical growing facilities endure. |
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DETAILED DESCRIPTION The present invention relies on the premises that sunlight is provided in quantifiable amounts to the major populated areas of the earth, and that the proper proportioning of the architectural elements of a greenhouse can provide the known five separate building related factors for growth of any species of plant.
The power of the sun is used not only for the photosynthesis of the plants, but also to maintain all five growing requirements which are temperature, relative humidity, light, carbon dioxide and atmospheric pressure.
Briefly, each plant has a range of day-time and night-time temperatures that is required for growth and the setting on of flowers.
Conventional greenhouses have mechanical systems and structural systems that make the maintenance of this proper range impractical.
The roofing system of the present invention is proportioned so that the requirements for heating and cooling can be maintained, reducing the reliance on fossil fuel-burning furnaces and cooling devices.
Further, each plant has light requirements for intensity and length of daylight hours.
The intensity is controlled by proportioning the glazed areas of the present invention.
The length of daylight hours can, if necessary, be controlled with blackout devices over the glazing areas of the present invention, accounting for approximately 20% to 50% of the roof.
Typical greenhouses have total roof and wall areas that would have to receive blackout devices.
Briefly described, in a preferred form, the present invention overcomes several disadvantages in conventional greenhouse construction by providing a well-insulated commercial greenhouse range roof glazing system that integrally maximizes the collection of full spectrum winter sunlight while managing the summer sunlight input levels while further factoring out portions of the light spectrum not vital for photosynthesis, without the requirement that the present system be capable of movement, for example, solar tracking.
In that the present invention provides its many advantages integrally, no other optical aiding devices are required in the construction of a greenhouse incorporating the present invention
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