Choosing the right glazing material directly affects how comfortable and durable your sunroom will be. Polycarbonate sheet for sunroom from Baoding Sinhai Sunboard Manufacturing Co., Ltd. is produced with 100% virgin Bayer/Sabic resin and a co-extruded 50µm UV protection layer that blocks 98%–100% of UV radiation below 380nm. Backed by over 30 years of manufacturing experience across 3 production bases and 25+ production lines, Sinhai supplies consistent-quality glazing for both residential and commercial projects.
Glass is heavy, fragile, and a poor thermal regulator. Polycarbonate sheet for sunroom address all three limitations through a fundamentally different material structure.
The multiwall design traps air between parallel walls, creating natural insulation that keeps interiors cooler in summer and warmer in winter. U-values range from 1.1 to 3.5 W/m²K depending on thickness — a measurable improvement over single-pane glass. Light transmission sits between 60% and 82% in standard configurations, giving you a bright interior without harsh glare. A frosted finish is also available for projects that require additional privacy.
| Parameter | Value |
|---|---|
| Thickness | 4–25mm (hollow 6–16mm / solid 3–10mm) |
| Effective Width | Max 2.5m (full sheet, no overlap) |
| Length | Cut to order |
| Resin | 100% virgin Bayer/Sabic polycarbonate |
| UV Co-extrusion Layer | 50µm (blocks UV below 380nm) |
| Anti-UV Rate | 98%–100% |
| Light Transmission | 0%–90% (by color/finish); typical 60%–82% |
| Impact Strength | 850 J/m (250× stronger than glass) |
| Service Temperature | -40°C to +120°C |
| Fire Rating | B1 (GB 8624) / UL94 V-2 |
| Warranty | 10–20 years |
| Certifications | ISO 9001 / SGS / CE / RoHS |
Structural Safety
At 850 J/m impact strength, the sheet withstands hail strikes and accidental impact without shattering — 250 times stronger than glass and 30 times stronger than acrylic. This makes it a practical choice for roof and overhead glazing where glass poses a safety risk.
UV Protection Built Into the Surface
The UV layer is co-extruded directly into the sheet surface, not applied as a film. Thickness is verified by spectrophotometry to confirm a minimum of 50µm. Yellowing resistance is evaluated under accelerated weathering (Xenon Arc or QUV), with results used to support the 10–20 year product warranty.
Thermal Comfort Through Correct Installation
The multiwall internal structure reduces heat buildup. When installed with EPDM gaskets and expansion gaps of approximately 3mm per linear meter, the system handles thermal movement without warping or leaking.
Fire Safety
Rated B1 under GB 8624 and UL94 V-2, the material is self-extinguishing and does not produce burning droplets — a meaningful consideration for enclosed living spaces.
Frame Compatibility
Full sheets fit steel, aluminium, and wood structural frames. Node drawings, waterproofing details, screw layout plans, and expansion-gap specifications are provided with every order.
Polycarbonate sheet for sunroom suits a wide range of project types:
Every sheet is inspected at three stages: raw material receiving, production, and pre-shipment.
Tests performed at each stage include:
Products carry ISO 9001:2015, CE, RoHS, and SGS certifications.
Sinhai supports OEM and ODM services across a range of processing options, including CNC cutting, special-shaped cutting, film coating, bending, vacuum forming, and thermoforming for solid PC sheets. With 70+ free corrugation molds, there are extensive profile options for matching different frame systems.
Free samples are available — request yours before placing a full order.
Q: What sheet dimensions are available?
A: Thickness ranges from 4–25mm, maximum width is 2.5m, and length is cut to your project size. Sheets fit steel, aluminium, and wood frames. Full node drawings are provided with every order.
Q: Is installation support included?
A: Yes. Node design, waterproofing details, screw layout drawings, and expansion-gap plans are included at no additional cost. Remote guidance is available, and on-site support can be arranged for bulk orders.
Q: Will the sheet yellow over time?
A: Yellowing is controlled by the co-extruded UV layer. The 50µm coating is verified by spectrophotometry, and yellowing resistance is tested under accelerated weathering conditions. Performance is covered by the 10–20 year product warranty.
Q: How does the sheet handle thermal expansion?
A: Polycarbonate expands more than glass. Correct installation requires EPDM gaskets and oversized fixing holes to allow approximately 3mm of movement per linear meter. Detailed node drawings are supplied with every order.
Q: Is the sheet noisy during heavy rain?
A: Thicker multiwall configurations and rubber decoupling gaskets reduce acoustic vibration. For noise-sensitive projects, 16mm or 25mm multiwall product is the recommended specification.
Do you have more questions about polycarbonate sheet for sunroom? Email [email protected] for samples, pricing, or technical specifications.
⭐⭐⭐⭐⭐ · August 12, 2026
Central Asia - Uzbekistan Focus (Customization & UV Resistance)
Impressive customization capabilities! We ordered the customized Double‑wall Narrow Grid sheets with Double Circular Edges for our recent urban project in Tashkent. The fit and finish are exceptional. Most importantly, the use of high‑quality 3R virgin raw materials provides the thermal stability and UV protection needed for the intense Uzbek sun. A top‑tier partner for Central Asian infrastructure.
⭐⭐⭐⭐⭐ · July 25, 2026
South America - Corrugated Selection (Volume & Patent)
The best selection of corrugated profiles in the market. Having access to 70+ free molds saved us significant tooling costs. We are extremely pleased with the Trapezoidal 1000 and the 1060 Wave/Trapezoidal sheets in Bronze and Yellow; there is zero color deviation across the entire batch. Furthermore, their Patented Reed Sheets have given our architectural projects a unique, high‑end texture that no other supplier can offer.
⭐⭐⭐⭐⭐ · June 18, 2026
Southeast Asia - Solid Sheet (Durability)
Our go‑to supplier for Solid Polycarbonate Sheets. In the humid and high‑heat environment of Southeast Asia, these solid panels maintain perfect transparency and high impact resistance. The quality of the resin is evident, and the service is always efficient。