Ethan Clarke
Plastic is a popular material for greenhouses because it is inexpensive, lightweight, and flexible. However, not all plastics are created equal, and choosing the right one is critical. The best type of plastic for a greenhouse depends on the specific setup and needs. For example, if you're looking for extra durability or live in an area with frequent thunderstorms and hail, woven greenhouse plastic may be a good option. Thickness is also important, as it needs to withstand heavy rain, snow, hail, and falling sticks. Clear plastic is recommended for greenhouses as it lets the most light through, but opaque or white plastic can be beneficial in warm climates to avoid excessive heat. UV protection is another feature to consider, as it prolongs the lifespan of the plastic and can reduce the impact of certain pests, although it may not be ideal if you are using bees for pollination.
| Characteristics | Values |
|---|---|
| Thickness | 6 mil, 8 mil, 10 mil, 11 mil, 12 mil |
| Colour | Clear, opaque, white, green, red, black |
| Strength | 65 lbs per square inch |
| Light transmission | 82%, 90%, 55% |
| Durability | Woven plastic is extra durable and puncture-resistant |
| UV protection | Yes |
Explore related products
What You'll Learn
Thickness: 6 mil or 10 mil?
The thickness of plastic you choose for your greenhouse depends on your specific needs. 6 mil plastic is a popular choice for smaller greenhouses and has been known to last several seasons. It is also available with UV treatment, which can be useful for prolonging its lifespan. 6 mil plastic is also available in a high diffusion variety, which can be beneficial in warm climates.
However, if you live in an area with harsh weather, frequent thunderstorms, hail, or falling debris, you may want to consider a thicker plastic. 10 mil woven plastic is incredibly strong and puncture-resistant, making it a good option for withstanding harsh weather conditions. It also has the added benefit of being double-sided, with a matte side and a shiny side, allowing for two different levels of diffusion.
Ultimately, the decision between 6 mil and 10 mil plastic depends on your specific requirements and the climate you live in. 6 mil plastic is a good choice for those seeking an inexpensive option that can provide adequate protection in most conditions. On the other hand, 10 mil plastic is ideal for those who require extra durability and protection against harsh weather.
It is worth noting that 12 mil plastic exists, but it may be considered overkill for most applications, as it has a strength breakpoint of 65 lbs per square inch and a light transmittance of 82%.
Mice and Plastic Pipes: What You Need to Know
You may want to see also
Explore related products
Colour: Clear, opaque, or white?
Greenhouse plastic comes in clear, opaque, and white varieties, each with its own advantages and disadvantages. Clear plastic is the most popular choice for gardeners because it allows the most light to pass through, which is beneficial if your greenhouse is used during periods of low sunlight, such as early spring or late fall. However, in warmer climates or during summer, too much light and heat can bake your plants. In these cases, opaque plastic is a better option as it filters the light. Alternatively, a shade cloth can be used with clear plastic to filter light.
White plastic significantly reduces light transmission, blocking up to 55% of light. This type of plastic is not commonly used and is typically reserved for specific applications. If you require a higher level of light filtration, shade cloth can be used with clear plastic to achieve a similar effect without blocking as much light.
In addition to colour, thickness is an important consideration when choosing greenhouse plastic. Thicker plastic, such as 12 mil, may be overkill for most applications and can reduce light transmission. A 6 mil thickness is a common choice for greenhouses as it offers a balance between durability and light transmission.
To extend the lifespan of your greenhouse plastic, consider selecting a type that offers UV protection. This feature can reduce the impact of pests and prolong the life of the plastic by blocking UV rays. However, if you are using bees for pollination, UV-blocking plastic may not be ideal as bees rely on UV light to locate flowers.
Polishing Lightly Sanded Plastic: Achieving a Flawless Finish
You may want to see also
Explore related products
Material: Polyethylene or polycarbonate?
Polyethylene and polycarbonate are two of the most sought-after materials for greenhouses. Polycarbonate is a thermoplastic polymer known for its strength, durability, and impact resistance. It is a sturdy option for withstanding extreme weather conditions such as heavy snow, hail, and wind. Polycarbonate also offers excellent light transmission and UV protection. However, it requires regular maintenance and cleaning due to its susceptibility to algae growth and condensation build-up. Additionally, polycarbonate is typically more expensive than polyethylene.
On the other hand, polyethylene is a versatile and cost-effective plastic polymer. It is known for its resilience against adverse weather conditions, including heat, heavy rain, and gusty winds. Polyethylene also exhibits good heat retention properties, making it suitable for maintaining stable temperatures during colder months. The lightweight and flexible nature of polyethylene makes it easy to install and modify. However, unlike polycarbonate, polyethylene does not inherently possess UV-resistant properties. Manufacturers treat polyethylene with UV inhibitors to prevent degradation and yellowing over time, improving its lifespan.
When choosing between polyethylene and polycarbonate for a greenhouse, several factors come into play. Climate considerations are essential. Polycarbonate's strength and impact resistance make it ideal for extreme weather conditions, while polyethylene's resilience and heat retention properties excel in diverse climates. The desired durability and longevity of the greenhouse covering are also important factors. Polycarbonate generally offers a longer lifespan than polyethylene, but the latter can be enhanced with UV treatment. Additionally, the level of required maintenance differs between the two materials, with polycarbonate demanding more frequent upkeep due to algae and condensation issues.
Budgetary constraints may also influence the decision. Polyethylene is generally more cost-effective than polycarbonate, making it attractive for larger greenhouse projects or those on a tighter budget. The thickness of the material is another consideration, with polycarbonate panels typically ranging from 4 mm to 16 mm, while polyethylene is available in varying thicknesses like 6 mil and 10 mil. The desired level of light transmission is a further factor, as clear coverings offer the best light transmission, followed by opaque options, and finally, tinted coverings, which can be beneficial in warm climates.
In conclusion, both polyethylene and polycarbonate offer distinct advantages for greenhouse applications. Polycarbonate stands out for its exceptional strength, durability, and UV protection, while polyethylene shines with its cost-effectiveness, resilience, and heat retention properties. The optimal choice depends on specific requirements, including climate conditions, desired durability and maintenance, budgetary constraints, thickness preferences, and light transmission needs. Consulting with greenhouse experts or suppliers can provide tailored guidance based on these factors.
Plastic Trends: Molding the Future
You may want to see also
Explore related products
UV protection: Yes or no?
When choosing the type of plastic for a greenhouse, there are several factors to consider, and UV protection is one of the most important ones. So, should your greenhouse plastic have UV protection or not? The answer is yes.
UV protection in greenhouse plastic is essential because it blocks UV rays, which can cause damage to the plastic sheeting and the crops. UV radiation from the sun can break down the polymers in plastic sheeting, making it brittle, discoloured, and weak. This process is known as UV degradation, and it can occur within months if the plastic does not have UV protection. On the other hand, UV-protected plastic can last anywhere from one to four years.
UV-protected plastic also offers benefits for pest control and plant health. It has been shown to reduce common greenhouse pests like whiteflies, aphids, and gnats. However, it is important to note that bees need UV light to locate flowers, so if you are using bees for pollination, UV protection may not be ideal.
The type of plastic you choose for your greenhouse will depend on your specific needs and goals. Clear plastic is typically the best choice for most gardeners as it lets in the most light, which is beneficial during periods of low sunlight. However, in warm climates or during summer, opaque plastic can be preferable as it filters the light to avoid excessive heat on your plants.
When selecting greenhouse plastic, consider the thickness as well. Thicker plastic, such as 10 mil, is more durable and suitable for larger commercial operations. On the other hand, 6 mil plastic is strong enough for most backyard gardeners and smaller greenhouses. Additionally, look for plastic with a high light transmission rate, ideally starting at 83% up to 99%, to ensure your plants receive sufficient sunlight for growth.
Plastic Quotes: Harmful Effects of Plastic on Environment
You may want to see also
Explore related products
Single or double layer?
A double layer of plastic can help to insulate your greenhouse, reducing condensation and heat loss. This is achieved by creating an air pocket between the two layers, which acts as a barrier to keep the warm air inside and the cooler air outside. This can be beneficial if you are growing in colder months or are affected by frosts or coastal winds. The double layer also provides extra protection from pests and diseases, as there is less water dripping onto plants, reducing the potential for mould.
However, a double layer will reduce the light by 10-15%, which may be an issue if your greenhouse already receives limited sunlight. Additionally, the installation of a double layer system requires more time and effort, and you will need to ensure your greenhouse structure can support the additional layer.
If you live in a mild climate and are only growing cold-hardy crops, a single layer of plastic may be sufficient. This will allow more light to reach your plants and can be more cost-effective and easier to install.
The most common recommendation for greenhouse plastic is a 6 mil UVA Clear polyethylene with UV protection. This provides strong protection while still allowing for high light transmission. If using a double layer, both layers should be 6 mil for durability.
Ultimately, the decision between a single or double layer depends on your specific needs and growing environment. Consider the climate, the crops you are growing, and the level of protection and insulation you require.
The Art of Softening and Shaping Plastic Like a Pro
You may want to see also
Frequently asked questions
Polyethylene plastic is a popular choice for greenhouses. It is inexpensive, lightweight, and flexible. It also comes in different thicknesses, such as 6 mil or 10 mil, and can be clear, opaque, or tinted.
The thickness of greenhouse plastic is typically measured in "mil". The ideal thickness depends on your specific needs and environment. For harsh weather conditions, thicker plastic, such as 9 mil or 12 mil, is recommended for added strength and durability. For most applications, 6 mil is sufficient and offers a good balance between durability and light transmission.
Clear plastic lets in the most light, making it ideal for early spring or late fall when sunlight is limited. Opaque or tinted plastic filters the light, which can be beneficial in warm climates or during summer to prevent excessive heat from reaching your plants. White plastic, for example, filters light significantly at 55% and is not commonly used. Tinted plastic may be preferred by certain types of plants.
