When choosing a greenhouse, on of the key decisions is selecting the right glazing material. The choice between glass and polycarbonate glazing impacts insulation, light diffusion, and durability. While glass remains a timeless and aesthetically pleasing option, polycarbonate has gained popularity due to its strength, energy efficiency, and versatility. If you're considering polycarbonate for your greenhouse, here's what you need to know about its benefits and suitability for different gardening needs.
What is Polycarbonate Glazing?
Polycarbonate is a lightweight, impact-resistant material commonly used in greenhouse construction. Unlike glass, which is rigid and breakable, polycarbonate is flexible and virtually shatterproof. It comes in different forms, including twinwall and fivewall sheets, each providing varying levels of insulation and light diffusion. its structure makes it an excellent choice for those looking for a balance between durability and energy efficiency.
Advantages of Polycarbonate Glazing
Superior Insulation & Energy Efficiency
Greenhouse Insulation is essential for maintaining a stable growing environment, particularly in colder climates. Multi-wall polycarbonate sheets trap air between layers, providing better thermal efficiency than single-pane glass. This helps keep temperatures consistent, reduces heating costs, and extends the growing season.
Light Diffusion & UV Protection
Polycarbonate glazing naturally diffuses light, creating a softer and more even distribution of sunlight. This helps reduce harsh shadows and minimizes the risk of plant scorching. Additionally, polycarbonate comes with built-in UV protection, preventing the material from yellowing over time and shielding plants from excessive exposure to harmful UV rays.
Durability & Weather Resistance
One of the biggest advantages of polycarbonate is its resilience. It can withstand extreme weather conditions, including hail, strong winds, and heavy snowfall, without breaking. While glass is also a durable and time-tested material, polycarbonate provides added flexibility and impact resistance, making it an excellent choice for gardeners in areas with unpredictable weather.
Lightweight & Easy to Install
Compared to glass, polycarbonate is significantly lighter, making installation easier and requiring less structural support. Its flexibility allows for a wider range of design options, making it a create choice for customized installations such as exhaust fan systems or specialized modifications like adding a fireplace.
When is Polycarbonate the Right Choice?
While both glass and polycarbonate have their merits, polycarbonate may be the ideal choice if you:
- Garden in colder climates and need a greenhouse with better insulation.
- Live in an area prone to extreme weather and require a more impact-resistant material.
- Prefer a low-maintenance, long-lasting glazing option that reduces the need for frequent replacements.
- Want a cost-effective solution that balances durability, energy efficiency, and ease of installation.
Greenhouses with Polycarbonate Glazing
If you're considering polycarbonate glazing, BC Greenhouse builders offers several greenhouse models that feature this durable and efficient material.
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The Sunhaven Greenhouse
$4,495.00The 8×8 Sunhaven Greenhouse is designed with twin-wall polycarbonate panels that provide excellent insulation and 80% light diffusion, creating an optimal growing environment year-round. Its durable structure withstands harsh weather conditions, and with customizable frame color options, it combines functionality with aesthetics.
The Westgrove Greenhouse
$8,895.00The Westgrove Greenhouse is an 8×12 model designed for affordability and durability, featuring single 3mm overlap glass with a twinwall polycarbonate roof. Built in stock for cost savings, it is available in black or white frame colors without the need for a permit in most locations.
Additionally, any of the BC Greenhouse Builders Backyard Greenhouses can be made with polycarbonate glazing, giving you the flexibility to choose the material that best suits your gardening needs. A popular option is to mix and match glazing materials—many gardeners opt for a polycarbonate roof for insulation and light diffusion, while maintaining traditional single glass sidewalls for a classic greenhouse aesthetic.
Considerations Before Choosing Polycarbonate
Before deciding on polycarbonate glazing, consider the following:
- Lifespan & Maintenance: While highly durable, polycarbonate can be prone to minor surface scratched. Regular cleaning with a saft cloth and mild detergent helps maintain its clarity.
- Appearance: Some gardeners prefer the traditional glass look, as it offers a clear, classic aesthetic. Polycarbonate has a more modern appearance and is translucent rather than completely clear, offering privacy while still allowing ample light for plants to grow.
- Growing Season Impact: Due to its light diffusion properties, polycarbonate glazing may result in a slightly delayed start for seed germination compared to single-pane glass. However, its superior insulation allows for an extended growing season into the fall, providing a more stable environment for plants as temperatures drop.
Choosing the Right Glazing for Your Greenhouse
Polycarbonate glazing offers greenhouse owners a practical, efficient and durable option for year-round gardening. While glass remains a beautiful and traditional choice, polycarbonate provides exceptional insulation, light diffusion, and impact resistance, making it ideal for those who prioritize longevity and energy savings. Whether you choose glass or polycarbonate, BC Greenhouse Builders offers high-quality solutions tailored to your gardening needs. View all our glazing options here to find one that works best for you.
