Glass Greenhouses vs Plastic Multi-Span Greenhouses: Which is Better?

Are you a plant lover looking to start your own greenhouse? Choosing the right type of greenhouse is essential for a successful harvest, but with so many options available, it can be tough to decide which one is right for you. Glass and plastic multi-span greenhouses are two of the most popular choices for growers, each with its own advantages and disadvantages.

In this post, we’ll provide an in-depth comparison of glass and plastic multi-span greenhouses to help you make the best decision for your specific needs and preferences.

Glass Greenhouses: Classic & Sturdy

Glass Greenhouse by INSONGREEN
Glass Greenhouse by INSONGREEN

Glass greenhouses have been around for centuries and are still a popular choice for many growers today. One of the biggest advantages of a glass greenhouse is that it is sturdy and durable. Glass is strong and can withstand extreme weather conditions, making it ideal for areas that experience high winds or heavy snowfall.

Another advantage of a glass greenhouse is that it provides excellent light transmission. Sunlight can easily pass through the glass, providing your plants with the natural light they need to thrive. This can help increase plant growth and yield, as well as improve the quality of your plants.

However, glass greenhouses can be more expensive to build and maintain compared to plastic multi-span greenhouses. The initial cost of a glass greenhouse is usually higher, and it can also be more difficult to repair or replace broken glass panels.

Plastic Multi-Span Greenhouses: Affordable & Adaptable

INSONGREEN Widespan Poly Greenhouse
INSONGREEN Widespan Poly Greenhouse

Plastic multi-span greenhouses, on the other hand, are a more modern option that has gained popularity in recent years. One of the biggest advantages of a plastic multi-span greenhouse is that it is more affordable than a glass greenhouse. The cost of materials and installation is lower, making it a more budget-friendly option for growers.

Another advantage of a plastic multi-span greenhouse is that it is highly adaptable. The plastic panels used in these greenhouses can be easily removed or replaced, making repairs and maintenance much easier than with a glass greenhouse.

However, plastic multi-span greenhouses do have some downsides. The plastic panels can become discolored or cloudy over time, reducing light transmission and potentially impacting plant growth. Plastic greenhouses are also less sturdy than glass greenhouses, and may not hold up as well in extreme weather conditions.

Which One is Right for You?

Deciding between a glass greenhouse and a plastic multi-span greenhouse ultimately depends on your specific needs and preferences. If you prioritize durability, and light transmission, and are willing to invest in a more expensive option, a glass greenhouse may be the right choice for you. On the other hand, if you’re looking for a more affordable and adaptable option that is easy to maintain, a plastic multi-span greenhouse may be the better choice.

FactorsGlass GreenhousesPlastic Multi-Span Greenhouses
Construction MaterialsGlass and MetalPlastic and Metal
Insulation CapabilityHighModerate to High
Light TransmissionHighModerate
Maintenance RequiredLowModerate to High
Initial CostHighModerate to High
Energy EfficiencyHighModerate
Customization OptionsLowHigh
AppearanceAesthetically PleasingUtilitarian Look


Whichever option you choose, both glass and plastic multi-span greenhouses can provide an ideal environment for your plants to grow and thrive. With the right setup and care, you can achieve excellent results no matter which type of greenhouse you choose.

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