This PC greenhouse series is built around one core component: the polycarbonate hollow sheet. The page below explains how the sheet is specified, how it performs physically, and how the frame protects it, so you can judge whether a polycarbonate greenhouse fits your project.

Polycarbonate Greenhouse Sheets: Structure and Specifications

The covering material is an 8 mm or 12 mm polycarbonate hollow sheet. Instead of a single solid layer, the sheet is built as a hollow panel: two outer skins separated by internal walls that form closed air channels. This structure keeps the sheet light and easy to handle while giving the greenhouse good light transmittance and good heat retention at the same time.

Main structural specifications of this greenhouse:

• Span: 6.4 m, 8 m, 9.6 m or 10 m available
• Total structure height: 4 m to 7.5 m
• Covering material: 8 mm or 12 mm polycarbonate hollow sheet
• Good light transmittance and good heat retention

Physical Performance of the PC Hollow Panels

The hollow panel is specified for toughness first:

• Impact resistance is 200 times higher than glass and 8 times higher than an acrylic plate, so hail, wind-blown debris and handling on site are far less risky.
• At very high temperatures the PC board material only melts without spreading, giving good flame retardancy.
• During installation the panels do not break or shatter, which makes the covering strong in adaptability and safety on site.
• Better anti-condensation behaviour than single-layer coverings helps keep water off crops.
• Service life: quoted against the ISO 9223 corrosion class of your site.

Together these points explain why the polycarbonate greenhouse offers a beautiful appearance, stable structure and good thermal insulation performance, and why it is a common choice for scientific research and experimental bases.

Galvanized Frame and Panel Fixing

The structure uses hot-dip galvanized steel pipe to avoid rust. Each greenhouse is designed with a special grooved channel frame that reinforces the panels against wind and weather: the sheet slides into the channel, so the wind load is carried by the profile instead of by screws through the panel. The frame is specified to the corrosion classes given in ISO 9223 and BS EN ISO 14713-1.

For corrosion protection, the hot-dip galvanized frame is assessed against ISO 9223 corrosivity categories; in a normal rural/inland environment classified as corrosivity category (C2), the zinc coating is designed for 50 years and above without maintenance, following the coating practice of BS EN ISO 14713-1. In coastal or high-humidity sites the corresponding shorter values apply, and we adjust coating thickness accordingly.

Applications in Research and Nursery Growing

The stable structure and even, diffused light under the hollow sheet make this greenhouse suitable for scientific research, seed nursery, flower production and experimental bases. For a comparison with a dedicated research facility, see our research glasshouse with custom compartments.

When you evaluate covering materials for such projects, independent references help: the USDA publishes controlled-environment agriculture resources, and Hortidaily tracks global greenhouse covering news.

Why Work With Us

Our company has above 35 years of professional greenhouse production history and has developed into a professional greenhouse company. Our greenhouses ship to markets all over the world every year. We have a professional engineer department: if the customer requests, we can send our engineers to foreign countries to guide the installation. Every year many customers visit our factory for business cooperation.

For a full supply scope including frame, sheets and fittings, see our polycarbonate roof panels greenhouse, or browse the complete commercial greenhouse range. To request a quotation, visit our contact page or email sales@cngreenhouses.com / call +86 191 5068 3942.

Frequently Asked Questions

Q1: What thickness of polycarbonate sheet is used on this greenhouse?
A1: The covering material is an 8 mm or 12 mm polycarbonate hollow sheet; both options give good light transmittance and good heat retention.

Q2: How strong are the PC hollow panels compared with glass?
A2: Impact resistance is 200 times higher than glass and 8 times higher than an acrylic plate, and the panels do not break or shatter during installation.

Q3: Are the panels safe if a fire occurs?
A3: At very high temperatures the PC board material only melts without spreading, so the covering has good flame retardancy.

Q4: How long do the greenhouse and its covering last?
A4: The frame is hot-dip galvanized and graded against the ISO 9223 corrosion classes, so we quote the coating mass to your site's exposure category.

Q5: What span and height options does the structure support?
A5: Spans of 6.4 m, 8 m, 9.6 m and 10 m are available, with a total structure height of 4 m to 7.5 m on a hot-dip galvanized steel frame.

Q6: Can you support installation at overseas sites?
A6: Yes. Our professional engineer department can send engineers to foreign countries to guide installation; contact sales@cngreenhouses.com or +86 191 5068 3942.