There are two basic types of greenhouse, free standing or lean-to, the latter being fixed to an existing wall.
Free standing greenhouses can come in many shapes and sizes. Most are a standard rectangle with an apex roof, however hexagonal, octagonal and even domed greenhouses are available.
A lean-to greenhouse can be a space saving option as it will most likely be tucked away against either your house, or another solid building which are usually around the edge of your garden. You will not need access all around and so less room will be needed. It will also benefit from the shelter the adjoining building will offer to it. If placed against a south facing brick wall then the heat retention of the bricks can also prove to be a boon in the winter months.
Two types of glazing are available for most styles of greenhouse. Either glass, or polycarbonate sheets. Glass is the most efficient at light transmission (approximately 90%), two types are typically used: Horticultural glass, this is thinner and can break but is cheaper to replace a broken pane. Toughened glass will safely break into tiny pieces, much like a car windscreen, this however makes it more expensive to replace.
>Twin walled polycarbonate is the most heat efficient material as it will retain the temperature in your greenhouse far longer. It is, however, opaque and only transmits 80 â 85% of the sunlight into the greenhouse. Acrylic sheets can also be used; they transmit more light than twin walled polycarbonate, but are far more brittle.
It is very important that about 1/5th of the greenhouse footprint is open-able; this does not include the door and ideally is achieved with roof vents, not side louvers. Automatic, heat activated vent openers are available and are extremely useful.
If you need work area in the greenhouse then proper staging is the best option, is has been designed to cope with being inside a greenhouse 365 days a year, usually allows for decent drainage and ventilation. See our range of garden staging here
Iâve been gardening for as long as I can remember, my first earliest memory being planting
seeds in my Grandfatherâs prestige flower bed and having a prize lettuce growing there, which he proudly left to show everyone.
Since then, gaining knowledge and experience from both my Grandfather and my Father, Iâve continued to garden, both as a hobby and later on as a professional gardener and landscaper for 12 years. I love all aspects of it, from the design and build, to the planting out of summer borders with plants youâve either grown from seed or raised from plugs. Unusual varieties always catch my eye and Iâm keen to try growing them, even if sometimes it means learning from my mistakes.