Hobby greenhouse kits and portable greenhouses come standard with free delivery and expert technical information, so browse our collection of Hobby Greenhouses and get the one that’s right for you.
Open roof greenhouses provide 
a environment for plant growth when the outdoor weather is suitable and an artificial environment when it is too hot or cool. Opening the roof over the plants increases light intensity which can help control the growth habit, flowering and crop timing. In addition, it reduces electrical power costs as expensive fan cooling isn’t needed.
Several methods are used to open up the roof. Some manufacturers make a roof that opens by rolling up the solitary or double layer of flexible plastic material glazing that runs the space of the greenhouse bay. A small gear electric motor rotates a shaft that winds the plastic material on to it such as a window color. A light, second framework over the framework secures the plastic-type material from bellowing out during windy weather. Opening and closing the roof could be either manual or automatic. Each part of the roof could be controlled independently for flexibility in cooling.
Folding roof greenhouses work very well in snowy climates because they can be tightly closed during winter. Most designs use regular vent hardware. Some possess panels that hinge at the gutter and open up upward. Opening is almost 100%. Others possess panels that are hinged at the ridge and one gutter and slide sideways on teflon bearings. Opening is approximately 85%. Most designs make use of rubber Gearbox For Greenhouse gasketing to seal the joints. Glazing could be glass, polycarbonate or film plastic. Some manufacturers provide a movable gutter to gather rainwater when the roof is partially open. Wind sensors should be set up to close the roof in stormy climate. Movable shade is frequently installed with the open up roof design. It reduces the heat load by reflecting the suns rays back again out. The shade curtain should be of a porous style to allow heat to escape. In northern climates an energy blanket can also be installed to lessen heat loss during the winter.
These structures contain a steel frame, flexible glazing and cable support. Woven UV stabilized polyethylene film creates a watertight glazing. According to the cropping program, bracing of the structure could be external cables mounted on deadmen, inner compression braces or trusses with cable X bracing. Flat roof designs are used where there is small rain or snow. A-roof styles shed the rain and snow to an interior gutter system. Designs which will carry up to 35 lb/sq ft snow load and 100 mph wind loads can be found. The roof opens in sections by shifting the industry leading of the curtain. One equipment motor will handle up to 50,000 sq ft of roof Heating is more challenging than in a typical greenhouse because of the single layer plastic and higher infiltration through gaps and cracks in the seals.
These little greenhouses offer extremely easy installation. Obtainable in various sizes, get a mini greenhouse or a big portable greenhouse today.