The Canopia by Palram 8 ft. x 16 ft. Green I Balance Greenhouse brings hobby gardeners the best of both worlds; advanced light management through 2 different polycarbonate panels and a durable 8 ft. wide frame perfect for your backyard and growing needs. A healthy head-start on your garden begins with effective light management through Palram - Canopia's market leading twin-wall polycarbonate. Twin-wall polycarbonate is the leading choice for quality hobby greenhouse coverings because of its durability, light diffusing properties and heat retaining ability. The twin-wall roof panels on the Balance block 99.9% of harmful solar UV radiation and create a system of even-light in your greenhouse. Even-light helps maximizes plant growth and eliminates the risk of plant burn and shade areas. Crystal clear polycarbonate side panels are equally as durable and provide over a 90% transmission of light. Palram - Canopia's version of these virtually unbreakable polymers are made only with virgin materials that won't become brittle or discolor over time. With an 8 ft. wide frame and four available lengths, you are able to customize the perfect hobby greenhouse. Corrosion resistant and durable, keep your focus on growing and not maintaining. Other features include integrated rain gutters to channel water for sustainable irrigation and roof vents to help moderate air flow and temperature to maximize growing conditions. A 5 year limited warranty and US based customer support will give you peace of mind. Palram - Canopia also offers a complete line of accessories to make your Balance greenhouse the perfect fit for your growing wants and needs.