Project Overview
In early 2026, a mid-sized commercial complex in Eastern China sought to upgrade its main building entrance with a modern, weather-resistant canopy. The existing steel-and-glass awning had deteriorated over ten years—sealant failure led to persistent leaks, and the heavy glass panels posed structural concerns during typhoon season. The property manager needed a lightweight replacement that would maintain natural light, withstand high winds, and complement the building’s contemporary facade, all within a tight renovation window.
The Challenge
Several constraints shaped this project. First, the existing steel support columns could not be replaced—the new canopy had to work within the original structural footprint. Second, the entrance faced southwest, meaning intense afternoon sun required effective UV filtering without darkening the lobby. Third, the building remained fully occupied during renovation, so installation could not involve heavy machinery or extended scaffolding. Finally, the client wanted a material that would require minimal maintenance over the next 15–20 years.
Our Solution
After evaluating material options including laminated glass, acrylic, and FRP panels, the project team selected solid polycarbonate sheets from Jietai for the canopy glazing. The decision rested on three key advantages:
- Lightweight yet impact-resistant: At 1.2 kg/m² for 1mm thickness (scaling proportionally for thicker sheets), solid PC weighs roughly half of equivalent glass while offering 200–250 times the impact resistance. This allowed the use of the original steel framework without reinforcement.
- Co-extruded UV protection: Jietai supplied 8mm clear solid polycarbonate sheets with a 50-micron co-extruded UV layer on the outward-facing surface. This blocks over 98% of harmful UV radiation while maintaining 85%+ visible light transmission.
- Easy fabrication on-site: Unlike tempered glass, solid PC sheets can be cut and drilled with standard woodworking tools, eliminating the need for pre-fabrication and reducing lead time.
The installation used 2100mm × 6000mm sheets cut to size on-site, fitted into the existing steel grid with aluminum clamping profiles and EPDM gaskets. Thermal expansion gaps of 3mm per linear meter were maintained per manufacturer guidelines. The entire canopy—covering approximately 45 square meters—was completed in four working days with a three-person crew.
Results
The new solid polycarbonate canopy transformed the building entrance. Natural light now fills the lobby throughout the day without the harsh glare of direct sun. The reduced weight (roughly 40% lighter than the glass alternative) eliminated the structural reinforcement that would have been necessary with other materials, saving the client approximately ,500 in steelwork costs.
During the first typhoon alert after installation, the canopy performed flawlessly—no leaks, no panel displacement, and no visible stress marks. The property manager reported that lobby temperatures on sunny afternoons dropped by an estimated 3–4°C compared to the old glass awning, thanks to the UV-filtering properties of the co-extruded layer.
Why Jietai?
Jietai supplied solid polycarbonate sheets in clear finish with single-sided UV co-extrusion, cut to the project’s exact width requirements from standard 2100mm-wide stock. As a dedicated polycarbonate sheet supplier serving both domestic and international markets, Jietai offers:
- Thickness options from 1mm to 30mm across four standard widths (1220/1560/1820/2100mm)
- Custom color matching and sizing available for bulk orders
- Technical guidance on thermal expansion allowances, fastener selection, and cleaning protocols
- Consistent factory-direct quality with full traceability on UV layer thickness
Whether you’re planning a commercial entrance canopy, a skylight system, or an industrial glazing project, solid polycarbonate sheets offer the durability, light transmission, and design flexibility that modern architecture demands. Contact our team for a quote tailored to your project specifications.
