Multiwall Polycarbonate Sheets for B2B Projects
Factory-direct multiwall PC sheets for greenhouses, skylights, roofing, daylighting walls and protected exterior glazing. Bakway supplies twinwall, triple-wall and multi-layer structures with UV protection, anti-drip options, color matching and cut-to-size support.
Structure Options for Procurement
Twinwall, triple-wall and multi-layer structures should be selected by span, loading, thermal insulation target, light transmission and budget. A thinner twinwall sheet can work for small covers, while wider greenhouse or roofing projects often need stronger rib geometry or thicker multiwall structures.
Twinwall Sheet
Lightweight and economical for small greenhouses, covers, partitions and daylighting panels.
Triple-Wall Sheet
Better stiffness and insulation than twinwall for larger spans and more demanding roofing layouts.
X-Structure / Multi-Layer
Used when the project needs higher rigidity, lower heat transfer and improved load resistance.
UV and Anti-Drip Options
UV co-extrusion protects outdoor sheets; anti-drip coating helps greenhouse condensation run down instead of dripping onto crops.
Specification, Section and Application Matching
For multiwall sheets, the cross-section is part of the specification. Thickness alone is not enough: the same nominal thickness can perform differently depending on wall count, rib geometry and whether the sheet is used for a small greenhouse, a skylight, a canopy or a commercial roof.
| Specification Range | Section Example | Recommended Applications | Selection Notes |
|---|---|---|---|
| Twin-Wall (4mm-10mm) |  | Garden greenhouses, small covers, carports, partitions and light-duty daylighting panels. | High light transmission and cost-effective sheet weight; confirm support spacing for roof use. |
| Triple-Wall / Four-Wall (10mm-16mm) |  | Greenhouse roofs, skylights, covered walkways, canopies and medium-span roofing. | Better stiffness and insulation than twinwall while keeping panels light enough for easy installation. |
| X-Structure / Honeycomb (16mm-25mm+) | | Heavy-duty architectural roofing, commercial skylights, facades and projects needing higher load-bearing capacity. | Used when the project needs superior insulation, rigidity and longer-span performance. |
Thermal Insulation, Light Transmission and Anti-Drip Options
Multiwall sheets are chosen when a project needs a balance between daylight, impact resistance and thermal performance. For greenhouses, anti-drip treatment and UV direction matter. For skylights and roofing, the buyer should also confirm wind load, support spacing, minimum bend radius and edge sealing.
| Requirement | What to Specify | Why It Matters |
|---|---|---|
| Light transmission | Clear, opal, bronze or custom color | Controls daylight, glare, privacy and heat gain. |
| Thermal performance | Thickness and wall structure | More layers usually improve insulation and stiffness. |
| Outdoor durability | UV side, warranty scope and installation direction | Wrong UV orientation can shorten service life. |
| Condensation control | Anti-drip coating for agriculture | Helps reduce water droplets in greenhouse projects. |
| Installation | H/U profiles, aluminum connectors, sealing tape | Open hollow chambers need clean edge protection and drainage. |
Applications and Related Resources
Use the resources below to match multiwall sheet specifications with common project conditions such as crop protection, roof daylighting, drainage, connector systems and installation details.
Installation and Accessory Checks
Multiwall panels are not only sheet supply. The installation method affects water control, thermal expansion and long-term clarity. Before quotation, confirm the support frame, sheet direction, sealing method and accessory profile.
- Confirm whether sheets are installed as roof, skylight, facade, greenhouse or partition panels.
- Specify H profile, U profile, aluminum pressure bar, standing seam or other connector system.
- Use breathable tape and sealing tape correctly to protect hollow chambers from dust and water.
- Leave expansion allowance according to sheet length, color, temperature range and fixing method.
- Check minimum slope, drainage direction and rib direction before cutting sheets.
Technical Datasheet for Multiwall Sheet Review
Final data depends on thickness, wall structure, color, UV side and coating. The table below gives procurement teams a practical starting point before sample approval.
| Item | Typical Options | Buyer Check |
|---|---|---|
| Thickness | 4mm, 6mm, 8mm, 10mm, 16mm and custom structures | Match span, wind load and insulation target. |
| Structure | Twinwall, triple-wall, X-structure, multi-layer | Confirm rib direction and panel stiffness. |
| Color | Clear, opal, bronze, blue, green and custom color | Check daylight, glare, privacy and heat gain. |
| Surface / coating | UV co-extrusion, anti-drip, anti-fog options | Specify inner and outer side clearly. |
| Processing | Cut-to-size, drilling, edge trimming, accessory matching | Send drawing or installation layout for review. |
RFQ Information for Faster Quotation
- Thickness, wall structure, width, length, color and UV side requirement.
- Application: greenhouse, skylight, roofing, facade, canopy, partition or OEM project.
- Need anti-drip, anti-fog, flame retardant, light diffusion or custom color?
- Accessory requirement: H profile, U profile, aluminum connector, tape, screws or gasket.
- Quantity, destination, packing method, loading plan and expected delivery schedule.
Get a Factory-Direct Multiwall Sheet Quote
Send sheet size, thickness, wall structure, application, color, UV side, coating request and destination market. Bakway will review it as a sheet supply or complete roofing/greenhouse panel project.
Bulk order planning
Need project quantity or repeat-order supply?
For container orders, distributor inventory or project procurement, review bulk polycarbonate sheets before sending an RFQ. The page covers MOQ, sheet type, packing, loading, documentation and quotation details for B2B buyers.