Choosing a Polycarbonate Greenhouse

A Haven for Plants and Seedlings

Greenhouses provide optimal nurturing conditions, better control over your plants’ climate and the warmth they need for an extended period. It allows you to get a head start with your seedlings and help your plants survive the fall frosts. Many greenhouses go so far as to support plant growth year-round, depending on their setup. Greenhouses also allow you to garden your plants from seedlings, reducing the risk of losing plants after transplanting or relocating to an outdoor environment.

Create the Right Conditions for Growth

Clear panels have a high, glass-like light transmission; multi-wall or twin-wall panels have a light diffusion effect that protects from strong sunlight exposure, reduces hotspots and shaded areas. Other features such as vents, windows, doors, heaters and misting systems help control temperature, airflow and humidity levels to create the optimal nurturing environment.

Plants inside Greenhouse


Starting from seed allows you to effectively cut down costs and trips to your local nursery or grocery store for plants and food. A small investment each spring gives you the opportunity to furnish your yard and home with fresh flowers or to garnish your meals with the herbs and vegetables you have grown by yourself. Aluminum and Polycarbonate yield a sturdy greenhouse structure at a competitive cost. Polycarbonate is a virtually unbreakable polymer that can transmit plenty of light and withstand severe weather. It is important to make sure your Polycarbonate panels are guaranteed to withstand UV radiation for an extended period.

Health Benefits

Growing your own plants allows you to stay active with purposeful physical activity. It also places you outside where sunlight and fresh air can reduce stress, provide a peaceful atmosphere and encourage relaxation. Growing your own fresh vegetables means that they will likely hold higher vitamin content and taste better. If you are concerned with the use of pesticides or herbicides, owning a greenhouse gives you 100% control of how things are grown.

Reduce Environmental Impact

Fewer trips to your local nursery or grocery store reduce the use of fossil fuels and the subsequent pollution. If you choose to grow your plants organically, you are reducing the amount of pesticides, herbicides and other pollutants that can be harmful to air, soil and water.

Types of Greenhouses:

Hobby Greenhouses – Perfect for the garden or backyard, the beginner hobbyist or serious grower. Though there are many different sizes and styles to choose from, all serve the purpose of extending each end of the growing season, or creating an environment where plants can thrive all year long.

Commercial Greenhouses – Ideal for CSA (Community Supported Agriculture) farmers, homesteaders and pro-am gardeners alike. Extend your season; protect your crop and increase yield and profits with a commercial greenhouse.

Lean to Greenhouses – Designed to utilize external walls and are ideal for those who love to grow and want to save on backyard space. Lean-To Greenhouses are conveniently close to home and provide quick and easy access.

Mini-Greenhouse – Inexpensive and require less assembly than other larger greenhouses. They work well for seed starting and for plant protection on decks and patios.

What to look for when buying a greenhouse


Clear – Clear panels provide the highest light transmission and a crystal clear view.

Diffused – Diffused panels, usually in the form of twin-wall polycarbonate, create even light, which reduces plant burn and shaded areas. Twin-wall polycarbonate also has a higher insulation or U-Value, allowing it to retain heat more effectively.

Merged Clear & Diffused – Provides plants with a combination of even-light through the roof, while the sides have a high light transmission and the luxury of crystal-clear views.

Inside Green House


Accessories help you to maximize your space and create a more efficient and productive growing area. Use accessories such as auto-vent openers that automatically stabilize heat, anchoring kits to protect from extreme weather conditions, trellising kits for tall growing vines and plants, shelving to clear floor space, shade kits to reduce direct sunlight exposure and much more.

Available Palaram Greenhouses

Why Palram Greenhouses

The Tough & Transparent Polymer

Polycarbonate stands for a group of thermoplastic polymers containing carbonate groups in their chemical structures. It earned its “Transparent steel” nickname from its unique combination of properties. Polycarbonate’s very high impact resistance renders it virtually unbreakable. It is lightweight and can have a glass-like appearance, without its associated dangers. These characteristics allow Polycarbonate to be widely used in applications such as bullet resistant glazing and jet fighter canopies. They also make Polycarbonate an excellent material for greenhouse glazing due to its high light transmission and weather resistance, even at a low thickness.

Long Term Durability Depends on Quality & Production

Polycarbonate blocks up to 100% of harmful UV radiation, making it an extremely effective shield for people as well as for plants. This characteristic depends upon the material’s adequate production in order to maintain its integrity for long service. Panels with too thin or no co-extruded protective layer may look perfect to the naked eye, but will discolor, deteriorate and become brittle over a relatively short period of time.

Palram has been manufacturing quality panels since 1967, and Polycarbonate panels specifically since 1986. Palram’s Polycarbonate panels portray the material’s advantages to their fullest, withstanding harsh weather conditions and offering many years of maintenance free use.

Symptoms of Poor UV Protection

Without sufficient protection from UV radiation, Polycarbonate panels will become yellow and brittle, making them unable to withstand hail or even lighter impact. The photos below show 2 twin-wall polycarbonate panels following an accelerated weathering test – 2 year’s worth of UV exposure. The Palram panel shows no sign of yellowing, whereas the other has considerable yellowing and haze.


Competitor’s Gazebo – Hail Storm Damage After Long UV Exposure

Hail Storm Damage to a Competitor's Gazebo: Poorly UV protected Polycarbonate panels become brittle after 2 years or more in the sun and become unable to withstand high impact.

Price-Depended Quality

High grade raw materials, experienced workforce, quality control, up-to-date production facilities and technology knowhow are all required to ensure the quality of Polycarbonate panels. These factors have an inevitable baring on the product’s price. When looking for a greenhouse, gazebo, carport or any other commodity that includes Polycarbonate panels, bare in mind that cutting down costs will have an effect on the product’s service time and functionality.

Seek the Mark of Quality

When reviewing Polycarbonate greenhouses, in order to be certain it can serve you well for over 2 years it is essential to pay attention to the manufacturer’s reputation and the Polycarbonate panels’ specifications. Palram products are backed up by a manufacturer’s warranty and also by the vote of confidence from many customers across decades of use.

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