Sturdi-Built offers three exterior glazing options — Standard Glass, Tempered Glass, and Twin Wall Polycarbonate — and an interior glazing system called our Thermal Option which can be used for additional insulation. Each exterior glazing choice offers advantages and disadvantages. The best exterior glazing material for your greenhouse is determined by personal preferences, climate and budget.
Most of our greenhouse kits come with Standard Glass in the walls and roof. Customers may upgrade to Tempered Glass or Twin Wall Polycarbonate for an additional cost. Please note that Twin Wall Polycarbonate can only be used in the roof as glass in the walls provides structure for the greenhouse frame.
See below for a chart that can help as you decide which material is best for you.