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Riga Greenhouse in a garden with the text: Best Greenhouse Polycarbonate

Best Polycarbonate for Greenhouse

Table of Contents

Ever wondered about the secret sauce behind a thriving greenhouse? Here’s a hint: it’s all about selecting the best polycarbonate for greenhouse construction. Yeah, you heard us right. It’s not just about your gardening skills, but also the very framework that shelters your beloved greens.

At Greenhouse Emporium, we’re proud polycarbonate greenhouse geeks! We dive into the nitty-gritty of greenhouse technology so that you don’t have to. 

Through years of research and hands-on experience, we’ve come to appreciate the mighty polycarbonate greenhouse and its role in bringing out the best in your plants. 

So, let’s get down to business. We’ve done the homework, tested the products, and we’re eager to share our top picks with you. Let’s find that perfect polycarbonate for your gardening haven!

The importance of polycarbonate

best polycarbonate greenhouse

Diving right in, let’s unravel why polycarbonate is the real MVP on any greenhouse materials list. You see, planning a greenhouse isn’t as simple as slapping together some wood and glass greenhouse panels. Oh no, the best material to build a greenhouse is, without a doubt, polycarbonate.

“But what about greenhouse replacement glass?” you might ask. Well, it’s not the champion anymore. Trust us; after decades of greenhouse expertise, we’ve learned that polycarbonate trumps glass in almost every way. Your polycarbonate greenhouse isn’t just a greenhouse; it’s a tropical paradise for your plants.

Now, you might be wondering, “What’s so special about a polycarbonate sheet?” We’re glad you asked! Polycarbonate sheets offer incredible benefits over traditional glass panels. This material strikes a fine balance between providing ample light transmission—vital for your plants—and granting effective UV protection.

Selecting the perfect polycarbonate for your greenhouse

Imagine this: A beautiful, sunny day. Your plants are bathing in direct sunlight, absorbing all the light they need for photosynthesis without the harm of harsh UV rays. That’s the magic of a polycarbonate greenhouse.

But wait, there’s more! We’re not talking about just any old polycarbonate sheet. We mean twin-wall polycarbonate. It’s a game-changer, offering better insulation than single-layer polycarbonate or glass panels. This translates into a more stable and ideal environment for your green friends, even in cooler climates or during winter.

To put it simply, polycarbonate panels offer the best light transmission, impressive UV protection, and incredible insulation, and are a breeze to install. Direct sunlight becomes your plant’s best friend, not their enemy. So when you’re planning your greenhouse, think twice before going the traditional route. The best material for your greenhouse isn’t the classic glass panel. Welcome to the future—it’s polycarbonate.

Advantages of polycarbonate panels

Polycarbonate panels offer a slew of advantages for greenhouse enthusiasts. First and foremost, they excel in durability, withstanding harsh weather conditions way better than traditional glass. These panels are champions in thermal insulation, keeping the inside temperature consistent and reducing heat loss. 

Thanks to their design, they offer excellent light diffusion, ensuring that plants get an even spread of sunlight without the risk of scorching. Plus, they provide a protective shield against harmful UV rays. With their lightweight nature, installation becomes a breeze. 

In short, for longevity, insulation, and optimal light conditions, polycarbonate panels are the way to go!

Best polycarbonate greenhouse: top picks

Let’s get this show on the road! It’s time to reveal our top picks for the best polycarbonate greenhouses. Now, remember, the goal here is to ensure the best light transmission and heat insulation, providing your plants with an extended growing season and a comfortable environment. So, fasten your seatbelts, fellow gardeners. Here’s a rundown of our favorite polycarbonate brands.

Best polycarbonate sheets for greenhouse construction


Ah, Janssens. A real gem in the world of polycarbonate. Their multi wall sheets are designed with light transmission and thermal insulation at the forefront. Made from the most robust plastic, these sheets are impressively durable,  (the Janssens Royal Victorian VI46 features seamless vertical panels in 10mm twin-wall Polycarbonate), yet remain lightweight and flexible. The result? An extended, durable season or growth for your green babies in a well-insulated, light-loving environment.


When you’re searching for the best greenhouse, Riga certainly comes to mind. Their polycarbonate panels offer fantastic light transmission and boast top-tier thermal insulation. The Riga XL even boasts 16 mm UV-coated triple-wall Polycarbonate on all sides. No more worrying about chilly nights or scorching days; Riga’s got you covered (literally!). Plus, their polycarbonate is surprisingly flexible, making it easy to install.

 how thick should polycarbonate be for a greenhouse


Mont’s polycarbonate sheets combine the best of both worlds: brilliant light transmission and excellent heat insulation. They’re plastic, they’re flexible, and they’re ready to take your polycarbonate greenhouse to the next level. and their 8mm-thick twin-wall polycarbonate is guaranteed to keep you cool in the summer and warm in the winter. Couple this with the best greenhouse shade cloth, and you’re all set for an outstanding growing season, come rain or shine.

Each of these options brings its own set of strengths to your greenhouse. Remember, the goal is to provide the best environment for your plants. Whether it’s Janssens, Riga, or Mont, choosing the right polycarbonate is a game-changer. So, take your pick and let the growing season begin!

What width of polycarbonate should you choose for your greenhouse?

When selecting polycarbonate for a greenhouse, a twin-wall with a width of 6-10mm, and most sheds with solid polycarbonate walls have 6mm thick panels.

Optimal polycarbonate panels for greenhouse

Now, let’s dive a bit deeper. A 6mm width is great for regions with mild climates, providing enough insulation while still being lightweight. However, if you’re in an area with more extreme weather conditions, leaning towards a 8mm to 10mm sheet is a wise choice. The added thickness ensures better thermal insulation, protecting your plants from chilly winters and sweltering summers. Additionally, these multi-wall sheets reduce the risk of heat loss, helping you maintain a consistent temperature within your greenhouse.

So, while 6mm is a good starting point, if you’re looking for higher insulation and durability, go for the thicker options. Always consider your local climate when making the final call!


And there you have it, fellow greenhouse gardeners! We’ve taken you on a journey through the wonderful world of polycarbonate, from the benefits of a multi-wall sheet to our top picks in the realm of PC panels. The journey doesn’t stop there, though. With every polycarbonate sheet you install and each accessory you add, you’re creating a unique environment for your plants to thrive in.

Top-rated polycarbonate options for greenhouses

It’s important to remember that maintaining a greenhouse goes beyond just minimizing heat loss. It’s about optimizing conditions to a higher degree, to provide a space where your plants can flourish all year round. This might mean tweaking your heating systems in colder months or adjusting light transmission levels in the summer. The beauty of it is, with polycarbonate, you have the flexibility and control to do just that.

So, let’s get out there and make our greenhouses the best they can be! After all, we’re not just growing plants; we’re nurturing a slice of Mother Nature, right in our backyards.

Remember, we’re always here at Greenhouse Emporium to support you on this gardening journey. Together, let’s make the world a little greener, one polycarbonate sheet at a time. Happy gardening, folks!

Did you find this article helpful? If you’ve ever built your own greenhouse, we’d love to hear from you. Let us know what worked for you and what didn’t in the comments!
Picture of Jesse James
Jesse James

Jesse James, an Army Veteran, now shares his passion for gardening through engaging articles on Greenhouse Emporium. Leveraging his experience and love for nature, Jesse provides practical advice and inspires others on their gardening journey.

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