Maximum Yield USA December 2016 | Page 60

GOING DOME The plants in this type of greenhouse will receive more direct sunlight throughout the day, which means more consistent heat input. A rectangular greenhouse will have less sun in the morning and evening, and the most at midday. A dome receives consistent sun and heat throughout the day because the sun follows the shape of the dome. Your plants will appreciate this, and the added light and heat will be a benefit during the dark winter months. Thirty to 40 per cent less surface area also means 30-40 per cent fewer materials used in construction. Geodesic dome greenhouses are relatively inexpensive to construct, depending on the design you use. You can buy prefab kits that you put together yourself, which are significantly more expensive, or you can do it yourself for only a few hundred dollars. There are online calculators to assist you in finding the precise measurements you need to create the perfect sized dome for your plants. The do-it-yourself version may require more brain power and physical labor from you, and won’t have all the bells and whistles that a prefab kit has, but it will do the job just fine. 58 Maximum Yield USA  |  December 2016 “ If you design your own dome, you will want to consult a good dome calculator to get the proper measurements. Design Your Dome If you design your own dome, you will want to consult a good dome calculator to get the proper measurements. You can find multiple dome calculators online. Two that come recommended are desertdomes.com and acidome.ru. The second calculator is in Russian, but it can be translated using an Internet translator. Enter your basic requirements for the dome and the calculator will generate the dimensions and angles needed for the struts, and give you a diagram to work from.