How Quickly Do Plastics Used In Greenhouses Degrade?

Greenhouse plastic covers are essential for creating an optimal environment for plant growth, as they increase warmth and humidity. They act as a barrier, trapping heat inside the plastic. Most greenhouse plastics have either a 1-year or 4-year lifespan, with nursery plastics usually rated for 1-year of use and needing to be recycled at the end of the season.

The speed at which items biodegrade depends on the shape of the material. A simple 4 mil poly greenhouse plastic will only last for a year, while UV stabilized plastic or different types like acrylic, vinyl, or fiberglass can last much longer. Most plastics degrade in sunlight, so regular polyethylene sheeting will only last for one or two seasons. UV stabilized plastic or other types like acrylic, vinyl, or fiberglass can last much longer.

A greenhouse cover might last anywhere from one to four years or more, but there are many factors that can affect its longevity. Natural aging can cause degradation twice as fast at a temperature increase of 10°C, and condensation droplets can reduce light transmission and last a couple of years. Researchers from the University of Hawaiʻi have found that common plastics degrade in the environment, emitting several greenhouse gases. Modern greenhouse plastic has a guaranteed life of at least four years, and some growers may get a year or two more out of it.

However, plastic is easily pierced by sharp objects and will degrade under ultraviolet light. A ground-breaking study reveals that plastic when exposed to the elements releases methane and ethylene, two powerful greenhouse gases that can exacerbate climate change.

How often do you need to replace plastic in a greenhouse?

Greenhouse covers should be replaced every one to four years, depending on factors like weather, greenhouse conditions, environmental surroundings, material type, and sheeting thickness. Thicker sheeting is less susceptible to rips and tears and takes longer to degrade in the sun. Additives like UV stabilizers and string reinforcement can extend the life of plastic sheeting. If growing in harsh conditions, the cover may last even shorter. Careful maintenance and repair can extend the life of plastic sheeting. Here are three tips to help you get the most out of your greenhouse cover:

1. Regularly clean and maintain the cover to prevent rips and tears.
2. Use UV stabilizers and string reinforcement to prolong the life of the plastic sheeting.

What is the life of greenhouse plastic?

Our 6 mil clear and white greenhouse plastic is UV treated and rated for 4 years of life, providing plants with the necessary sunlight for growth. It is a crucial barrier between delicate plants and harsh environments, revolutionizing farming. The quality of the plastic used can significantly impact the success of a crop. High-quality plastic ensures optimal light, protection from pests and extreme weather conditions, and a conducive environment for growth.

Growers and farmers can rely on our greenhouse plastic sheeting, which is ready to ship the day of order, to ensure the right amount of light is provided to plants. The farm plastic supply way offers high-quality greenhouse plastic and covers for farmers and growers alike.

How long does greenhouse plastic last?

Greenhouse covers, despite being durable, can eventually wear out and show signs of deterioration, such as scratches, yellowing, and cracking. This can lead to light transmission issues, mold, pest infestations, and heat loss. Despite the UV resistance, the lifespan of your cover is limited, and more severe damage can affect plants. Greenhouse repair tape is a UV-resistant, polyethylene-backed tape designed for outdoor use on greenhouse covers.

It is highly puncture-resistant and is suitable for short-term repairs, serving as an emergency bandage until you can replace your cover. Greenhouse repair tape is a quick and easy solution for minor holes in your greenhouse cover, providing a temporary solution until you can replace it.

What is the life expectancy of a polycarbonate greenhouse?

Polycarbonate greenhouse coverings are rigid, rigid panels with a life expectancy of 10-20 years. Corrugated polycarbonate offers light diffusion and non-drip benefits, making it easy to cut and install. Greca corrugated polycarbonate sheets are popular and have been replaced by Sinus corrugated panels. Polycarbonate is also available in multi-wall materials, such as twin wall or triple wall polycarbonate, which reduces heat loss and can reach up to 50 degrees Celsius.

Acrylic is a popular choice for greenhouse, nursery, and agriculture applications due to its long-lasting properties. Evonik, a popular brand from Cyro Corporation, is a popular choice for greenhouse and industrial use. Available in various lengths and widths, special accessories are required to contribute to the long life of acrylic panels. Acrylics come in flat sheets, twin wall, and corrugated options. Although expensive, they offer longer life and improved clarity, making them a cost-effective choice for greenhouse and industrial applications.

What is the life expectancy of a greenhouse?

When selecting covering materials for greenhouses, it is crucial to consider their lifespan and maintenance requirements. Glass greenhouses have a longer lifespan but are prone to damage, leading to higher maintenance costs. Polycarbonate greenhouses typically range from 3-5 to 10 years, with high-quality polycarbonate with UV-resistant co-extrusion layers extending their lifespan to ten years under warranty. The return on investment for greenhouses is also a significant factor.

Glass greenhouses may have a higher initial investment but offer a longer lifespan and stable performance, while polycarbonate greenhouses have lower installation and maintenance costs, potentially yielding a higher short-term return. The performance of different covering materials may also be influenced by site and climatic conditions. For instance, polycarbonate greenhouses may have better wind resistance in high wind areas, while glass greenhouses may perform better in areas with abundant sunlight.

What are the disadvantages of plastic greenhouses?

Plastic greenhouse sheets are lightweight, simple, and flexible, making them easier to handle and fit into place. They can handle more abuse and wear and tear, requiring less frequent replacements. Plastic sheets are easy to replace, provided the correct dimensions are taken into account. Glass sheets are more difficult to replace and require expensive professional installation. Plastic sheets are a great solution for greenhouse plants, as they are clear, durable, weather-resistant, and provide efficient light diffusion and UV protection.

They are UV treated, allowing for the manipulation of sun wavelengths to improve plant growth. However, some plastic sheeting may be thin and may require multiple layers for the same level of protection. Glass sheets are more difficult to replace and may require expensive professional installation.

How long do greenhouse kits last?

The greenhouse frame can last over 20 years, while the polycarbonate panels can last up to 15 years. After that, you can replace the panels and install them on the existing frame. To prevent high winds from lifting the entire frame, pin it to the ground and secure, level, and square the foundation before building the greenhouse on top. Contact customer service for individual polycarbonate panel purchases.

Does PVC degrade greenhouse plastic?

PVC electrical conduit can out-gas chlorine, destroying UV light stabilizers in polyethylene greenhouse film, causing it to degrade. Materials that can cause wear to greenhouse film include PVC pipe, PVC tape, oil-based paints, chlorine-based disinfectants, and certain pesticides. To prevent premature wear, manufacturers recommend covering surfaces with white acrylic latex paint or non-PVC tape, and not in direct contact with these materials. Failure to follow these recommendations can result in the warranty on the film being void.

There are differences in tolerance and installation requirements between manufacturers, so it is recommended to consult with your greenhouse film supplier and film manufacturer. Some growers wrap PVC pipe with old poly film, but this may create a habitat for pests and diseases. After consulting with the plastic manufacturer, it is suggested to cover the conduit with polyethylene pipe insulation, which is readily available and inexpensive.

Is PE or PVC better for greenhouse?

Greenhouse plastics have varying properties, with PE offering superior light transmission, PVC being durable, Polycarbonate providing excellent heat retention, and EVA combining light transmission and resilience. Polyethylene (PE) is an economical choice due to its high light transmission and waterproof properties. However, the 4-6 mil varieties, also known as nursery plastic, have a shorter lifespan and often require replacement after 1-3 years. SolaWrap, a transparent PE film with integrated bubbles, offers energy savings, UV protection, and prolonged growing seasons.

Are cheap plastic greenhouses worth it?

Plastic greenhouses offer an affordable and flexible alternative to glass greenhouses, but they are known for collapsing and not keeping out frost at night. Despite this, they are cost-effective and flexible, suitable for almost all surfaces, easy to transport, and quick to disassemble and rebuild. They are a great option for renters and beginners. This article reviews the experience with plastic greenhouses, highlighting the positives and negatives, and outlines key upgrades to improve the experience. It draws on comments from hundreds of viewers on a review video made last year.

How durable is greenhouse plastic?

Greenhouse plastic sheeting is a more durable and UV stabilized material compared to regular plastic sheeting, which is prone to shredding when exposed to the sun. It is more expensive than regular plastic sheeting but can be used over multiple seasons, saving more over time. Growers can choose between clear or black/white greenhouse plastic sheeting depending on their needs. Clear plastic is beneficial for areas needing more sunlight, as it diffuses light and reduces the risk of sun damage. White greenhouses or light deprivation covers can help control temperature and light. Depending on the specific needs of the growing area, a specific type of plastic sheeting may be suitable.