Lightweight and Easy to Transport
Internal chambers reduce the amount of material in the sheet, making roof handling and fabrication more convenient.
MULTIWALL POLYCARBONATE SHEETS
NATURAL DAYLIGHT.
LIGHTWEIGHT FOR
YOUR PROJECT.
Multiwall polycarbonate solutions for awnings, greenhouses and daylighting walls. Select the right structure for brighter, more efficient spaces.
Materials for a New Era · LIONVINA
UNDERSTAND YOUR MATERIALS
01What Is Multiwall Polycarbonate?
Multiwall polycarbonate is a polycarbonate sheet with connecting walls that form internal air chambers. Twinwall ranges typically have two flat faces and parallel longitudinal ribs; multiwall ranges have additional layers and ribs.
- 1Two Sheet Faces: allow light through and create a continuous appearance.
- 2Longitudinal Connecting Ribs: join the layers and define the chambers and sheet structure.
- 3Air Chambers: reduce weight and create an insulating air layer within the multiwall structure.
Explore Structure and Properties: Palram – Multiwall Polycarbonate ↗.
Flat SurfaceLongitudinal RibsAir Chambers
Natural Daylighting
Choose colour and light transmission to bring suitable daylight into the space.
Insulating Air Chambers
The multiwall structure creates an air layer; assess specific performance using each sheet's U-value.
Flexible Design
For roofs and daylighting walls; bending and fixing must follow each range's documentation.
LIONVINA CATALOGUE
02Select a Thickness for Your Project
Three thicknesses—4 mm, 4.5 mm and 5 mm—all in 2.1 × 5.8 m sheets. Select the thickness and colour suited to your project.
Multiwall Polycarbonate Sheets
4 mm Multiwall Polycarbonate Sheet
2.1 × 5.8 m
Clear · Blue
620,000 VND/ sheet
View Price List →Multiwall Polycarbonate Sheets
4.5 mm Multiwall Polycarbonate Sheet
2.1 × 5.8 m
Clear · Lake Blue · Green · Bronze
695,000 VND/ sheet
View Price List →Multiwall Polycarbonate Sheets
5 mm Multiwall Polycarbonate Sheet
2.1 × 5.8 m
Clear · Blue · Bronze
740,000 VND/ sheet
View Price List →No products match the filters. Select “Clear Filters” to view the catalogue again.
Need Advice on Other Specifications? Request Advice →
PRICES BY THICKNESS
Multiwall Polycarbonate Price List
Same 2.1 × 5.8 m Size · Priced per Sheet.
| Thickness | Colours | Dimensions | Price / Sheet |
|---|---|---|---|
| 4 ly | Clear · Blue | 2.1 × 5.8 m | 620,000 VND |
| 4,5 ly | Clear · Lake Blue · Green · Bronze | 2.1 × 5.8 m | 695,000 VND |
| 5 ly | Clear · Blue · Bronze | 2.1 × 5.8 m | 740,000 VND |
1 ly = 1 mm. Select colours by thickness in the table.
Ordering Advice →CHECK BEFORE ORDERING
03Sheet Specifications & Weight
Review thickness, structure, size and weight per m² together to compare options on the same basis.
| Thickness | 4 mm · 4.5 mm · 5 mm |
|---|---|
| Panel Dimensions | 2.1 × 5.8 m · Area 12.18 m²/Sheet. View Prices by Thickness → |
| Structure | Twinwall or multiwall; confirm the cross-section drawing for the exact sheet range. |
| Weight | Check kg/m² and net weight for the exact sheet size; clarify protective film and packaging when weighing. |
| UV Side & Warranty | Check sheet markings, product documents and warranty conditions for the quoted model. |
Size and colour must be confirmed for each order. This table does not specify support spacing or load capacity.
Sheets of the Same Thickness Can Still Differ. Ribs, walls, material grade and protective layers all require comparison. Weight helps compare material quantity; load-bearing selection needs separate technical documentation.
LIGHT & APPEARANCE
04Colours for Every Space
Colours vary by thickness: 4 mm is available in clear and blue/green; 4.5 mm in clear, lake blue, green and bronze; 5 mm in clear, blue/green and bronze.
ClearPrioritise Brightness
BronzeWarm Tones for Awnings
XanhModern Blue Tones
GreenHarmony with the Garden
Lake BlueSoft Turquoise Tones
Light Transmission for Each Sheet Model. The same colour name can have different specifications depending on structure and thickness. Request a data sheet when an exact light-transmission percentage is required. Example LEXAN Data Sheet ↗
UV Protective Layer
Helps protect the sheet against weathering. During installation, check the UV side marked on the film and in the documentation.
Solar Heat Control
Assess separate specifications such as SHGC/g-value and ventilation design; a dark colour or UV layer alone does not establish that a roof will stay cool.
Distinguish UV Protection from Solar Energy Control: Palram – Technical Information ↗.
SUGGESTED APPLICATIONS
05Bring Daylight into Your Project
Select materials according to intended use while considering supports, fixings and conditions at the installation site.
Awnings & Walkways
Create daylighting shelter for gardens, terraces and corridors. Consider sun direction, drainage and ventilation.
Greenhouses & Green Spaces
Select light suited to the crop, combined with ventilation and condensation management. If anti-drip treatment is required, confirm the correct sheet range.
Factories & Daylighting Walls
Add daylight through roof strips, walls or daylighting windows. Check wind loads, spans and project requirements.
DETAILS THAT DETERMINE DURABILITY
06Correct Orientation, Correct End Sealing
Principles only. Slope, spans, expansion gaps and fixings must follow the documentation for the chosen sheets and accessory system.
Orient Sheets Correctly
Chambers run along the roof slope; for walls, position chambers vertically so condensation can drain.
Identifying the UV-Protected Side
Read the protective-film markings and face the UV-protected side towards the sun. Check two-sided protection ranges separately.
Allow for Thermal Expansion
Installation gaps and drilled holes must follow the instructions for the sheets, profiles and screws. Avoid rigid overtightening that can compress, bend or crack sheets.
Finish Chamber Ends
Replace transport tape with suitable sheet end tape. Seal the upper end; use ventilating tape and a protective profile with drainage at the lower end.
Select the Correct Accessories
H joining profiles, U end profiles, gaskets and sealants must suit polycarbonate. Check slope, drainage and frame fixings.
Inspection & Handover
Remove film after installation and check gaps and sheet ends. Do not walk directly on polycarbonate roofing; use a frame-supported working platform during installation.
Upper EndSuitable sealed tape to limit water and dust ingress.
Lower EndVentilating tape + protective profile, with a moisture drainage path.
Chamber Orientation, Expansion and Fixings: LEXAN – Installation Guide ↗. Sealing Chamber Ends: Exolon – Technical Manual ↗.
Cleaning & Storage
Wash gently with warm water and mild soap using a soft cloth, then rinse clean. Avoid abrasives, acetone, petrol and incompatible cleaners; do not clean when the surface is too hot. LEXAN Cleaning Guide 2025 ↗
ADVICE BEFORE YOU BUY
07Frequently Asked Questions
How Does Multiwall Polycarbonate Differ from Solid Polycarbonate?
Multiwall polycarbonate has air chambers and visible ribs, making it suitable when weight and insulating structure are priorities. Solid polycarbonate is a solid sheet suited to clear, rib-free surfaces. The final selection must match the sheet model to project requirements.
Does a 6 mm Sheet Always Weigh 13.5 kg?
No. Weight depends on size, structure and the amount of resin per m². When requesting a 6 mm sheet, also confirm the brand, dimensions, kg/sheet or kg/m² and UV side. One weight figure alone is not enough to identify a product.
Should I Choose 4 mm, 4.5 mm or 5 mm?
Start with roof dimensions, frame spacing and project location, then check the exact sheet model and manufacturer's load tables. Send drawings or dimensions to LIONVINA for advice on the sheet–frame–accessory combination.
Will Multiwall Polycarbonate Keep a Space Completely Cool?
Air chambers support thermal insulation, but sunlight can still heat the space. Consider light transmission, solar heat control, sun direction and ventilation. The UV layer protects the sheet against weathering; heat reduction needs separate performance data.
Why Is There Dust or Algae Inside the Chambers?
Open chamber ends, unsuitable tape or blocked moisture outlets can allow dust and moisture to accumulate. Check sheet ends, tape, profiles and chamber direction before installation; exterior cleaning cannot remove dirt inside the chambers.
Can the Sheet Be Curved?
Some ranges can be cold-curved along the chamber direction. Check the minimum radius for the exact model; avoid forcing a guessed curve or bending across the ribs. Exolon Guide ↗
How Are Prices and Warranty Periods Confirmed?
Quotations depend on brand, thickness, structure, size, colour, quantity, cutting, accessories and delivery area. Warranty period and conditions are confirmed for each product code in the quotation.
Technical Reference Documents
The documents below explain multiwall polycarbonate principles. Each brand's specifications and warranty apply only to its own ranges; check the product documentation in the LIONVINA quotation.