How long do greenhouses last? Well constructed greenhouses can provide years of gardening pleasure. Hobby-type greenhouses depend on the quality of the materials and type of construction. Professional metal...
Hobby-type greenhouses depend on the quality of the materials and type of construction. Professional metal or wood framed greenhouses should last 20 years. The durability of the covering on them would depend on the grade of plastics purchased. It should be 2 to 4 years before you would need to replace the covering.
Commercial greenhouses are generally rated for 80 mile per hour straight-line winds, and they can be built with a snow load of 40 pounds per square foot. There are some that are designed for severe northern climates with heavy snow. They reinforce those to handle the microclimate.
