QUICK TIPS

By Solar Innovations

Greenhouses have evolved from a simple garden under glass into a way of life. If you’ve decided to purchase a greenhouse there are a few things to consider prior to installation and/or construction. Greenhouses are either freestanding or attached to an existing structure. Many residential customers prefer attaching a greenhouse to an existing building due to easy access in inclement weather. The greenhouse can be used for passive solar heating of the existing structure during daylight hours while the existing structure can help heat the greenhouse during the limited or no sunlight hours. A freestanding greenhouse structure creates a separate hideaway. Freestanding greenhouses can have their own unique design and can enhance the landscape by providing another attractive feature.

Keep these things in mind when designing a fully functional greenhouse:
Consider the proximity of nearby shading. Trees located close to the greenhouse provide shade during the summer, but will give shadows in the winter. Debris from a tree too close can soil the roof, requiring cleaning.

Be mindful of wind and inclement weather. Winds can provide cooling and ventilation during the summer but can increase heat loss in winter. The bottom of a hill or a hollow may provide shelter from some of the elements but may be more prone to moisture or frost.

Consider the direction of roof slope and drifting or sliding snow, when attached to an already existing structure. Extra gutters, ice breaks, or an impact resistant roof glazing such as polycarbonate may be required to accommodate large amounts of run off and snow.

Orient the greenhouse so plants are not harmed by excessive sunlight. Sunlight penetrates the greenhouse most when perpendicular to the glazing. A free-standing greenhouse’s orientation is not as critical because it receives light from all sides. South, southeast, or east facing attached greenhouses will provide the greatest light exposure. Western exposure provides adequate light. Northern exposure is only recommended for plants with low light requirements or if grow lights are utilized.

Build the greenhouse on a solid foundation. If the foundation is unstable, the structure will be subject to shifting, or frame and glazing breaking. GG

The information and photos for this article were provided by Solar Innovations. For more information call 800.618.0669 or visit www.solarinnovations.com .