| Solid Flat PC Sheet |
2–15 mm; thicker sheets are available for specialist glazing |
Approximately 80–90% for clear sheets, depending on thickness and surface finish |
Single-sheet U-value is commonly about 5.8–2.4 W/m²·K across the typical thickness range; actual performance depends on framing and installation |
High impact resistance, good optical clarity, cold-forming capability, and suitability for safety glazing and machine guards |
Suitable for high-wind, hail-prone, public-access, and security-sensitive areas when correctly designed and fixed |
EN 16240 may apply to solid flat polycarbonate sheets for internal or external walls, roofs, and ceilings. Optical testing may use ASTM D1003. UV-weathering evaluation may use ISO 4892-3 or ASTM G154. Fire classification may use EN 13501-1 or UL 94, depending on the application |
Confirm UV protection, impact classification, fire performance of the complete assembly, thickness tolerance, and allowable fixing span |
| Twin-Wall PC Sheet |
4–10 mm |
Approximately 70–85% for clear products; lower for opal or solar-control grades |
Typical U-value is about 3.6 W/m²·K at 6 mm and about 2.8 W/m²·K at 10 mm |
Lightweight, economical, easy to cut, and more thermally efficient than single-layer glazing |
Good for moderate and cold climates, greenhouse walls, skylights, partitions, and lightweight roof systems |
EN 16153 may apply to light-transmitting flat multiwall polycarbonate sheets used in roofs, walls, and ceilings. Fire performance may be classified under EN 13501-1 or tested under UL 94 where relevant |
Check cell geometry, condensation drainage, UV-side marking, tape and profile compatibility, and snow-load tables |
| Multiwall PC Sheet |
10–25 mm; thicker structures are available for high insulation requirements |
Approximately 45–80%, depending on wall structure, color, thickness, and coating |
Typical U-value is about 2.0 W/m²·K at 16 mm and about 1.4 W/m²·K at 25 mm; exact values must be measured or declared for the product |
Improved insulation, low structural weight, good stiffness-to-weight ratio, and reduced solar glare when tinted or opal |
Well suited to cold climates, energy-conscious buildings, large skylights, atria, agricultural structures, and warehouse façades |
EN 16153 is commonly relevant. Thermal transmittance may be declared using EN 673 or EN ISO 10077 methods. Fire classification may use EN 13501-1; national building approval may also be required |
Check U-value at the stated thickness, chamber design, thermal expansion allowance, edge sealing, wind load, snow load, and long-term yellowing resistance |
| Triple-Wall or X-Structure PC Sheet |
16–32 mm |
Approximately 40–75%, depending on geometry and surface treatment |
Typical U-value is about 1.5–1.9 W/m²·K, depending on thickness and internal structure |
Higher rigidity and insulation than basic twin-wall products, with good daylight diffusion options |
Recommended for cold regions, high-altitude applications, insulated roofs, façades, and buildings with demanding energy targets |
EN 16153 may apply. Solar and thermal properties should be supported by declared test data. Fire classification may use EN 13501-1 or another locally accepted building-code method |
Verify connector design, panel end treatment, drainage direction, structural span, and compatibility with local fire regulations |
| Embossed or Textured PC Sheet |
1.5–6 mm |
Approximately 55–85%, depending on embossing depth, color, and texture |
Thermal performance is similar to solid sheet of comparable thickness; a single 3 mm sheet typically has a U-value near 5 W/m²·K |
Diffuses light, reduces glare, hides minor scratches, and can provide improved visual privacy |
Useful in hot climates, privacy screens, interior partitions, decorative roofing, and daylighting where glare control is important |
Relevant evaluations can include ASTM D1003 for haze and luminous transmittance, ISO 4892-3 or ASTM G154 for weathering, and EN 13501-1 or UL 94 for fire performance where required |
Confirm haze level, color stability, cleanability, scratch resistance, outdoor UV treatment, and the orientation of the textured surface |
| Corrugated or Profiled PC Sheet |
0.8–2.0 mm; profile depth varies by roofing system |
Approximately 65–90% for clear profiles; lower for tinted or opal profiles |
Usually lower insulation than multiwall panels; performance depends strongly on profile geometry and installation, with approximate U-values commonly above 3.5 W/m²·K |
Fast installation, low weight, good impact resistance, and easy integration with profiled metal roofing |
Suitable for warm and temperate climates, canopies, agricultural buildings, industrial rooflights, and façade inserts |
EN 1013 may be relevant to light-transmitting profiled plastic sheets for roofing, walls, and ceilings. Fire classification may use EN 13501-1 or local roofing fire tests. Wind and hail tests may be required by the project specification |
Check profile compatibility, overlap requirements, purlin spacing, washer design, thermal movement, wind uplift, and hail resistance |
| UV-Coated or Co-Extruded PC Sheet |
Available in solid, twin-wall, multiwall, and profiled constructions; commonly 2–25 mm |
Depends on the base construction; clear grades generally provide higher transmission than tinted or solar-control grades |
Thermal performance follows the base sheet design; the UV layer normally improves weatherability rather than insulation |
Improved resistance to ultraviolet radiation, yellowing, and surface degradation compared with unprotected PC |
Strongly recommended for tropical, high-UV, desert, coastal, and high-altitude environments; useful for long-life outdoor glazing |
Weathering may be evaluated using ISO 4892-3, ASTM G154, or equivalent accelerated-exposure methods. Exact service-life claims should be supported by product-specific testing and warranty documentation |
Identify the UV-protected side, confirm coating or co-extrusion thickness, review accelerated-weathering results, and avoid abrasive cleaners that can damage the surface |
| Solar-Control or IR-Reflective PC Sheet |
Typically 2–16 mm, available as solid or multiwall constructions |
Common visible light transmission range: approximately 25–75%; solar heat gain varies by coating, tint, and structure |
U-value follows the base construction; solar-control performance is better represented by total solar energy transmittance or g-value |
Reduces solar heat gain, glare, and cooling demand while retaining natural daylight |
Best for hot, sunny, tropical, subtropical, and desert climates; especially useful for west-facing façades and large rooflights |
Solar and optical properties may be tested using EN 410, ISO 9050, or ASTM E903. Fire classification may use EN 13501-1 or locally recognized methods |
Request visible transmittance, solar factor or SHGC, reflectance, color stability, surface temperature limits, and compatibility with sealants and gaskets |
| Abrasion- or Hard-Coated PC Sheet |
2–12 mm |
Approximately 75–90% for clear grades, depending on coating and thickness |
Thermal performance is comparable to an equivalent solid sheet; the hard coat mainly improves surface durability |
Better resistance to scratching, cleaning chemicals, and repeated handling than standard uncoated PC |
Suitable for transport glazing, public areas, machine enclosures, partitions, and locations requiring frequent cleaning |
Surface abrasion may be assessed using ASTM D1044 or ISO 9352. Optical properties may use ASTM D1003. Fire and weathering performance must be verified for the specific coated construction |
Check abrasion test method, coating adhesion, chemical resistance, minimum bend radius, repairability, and whether cutting exposes an unprotected edge |
| Fire-Performance PC Sheet |
Commonly 2–16 mm, depending on construction and required classification |
Varies by formulation, additives, thickness, and color; fire additives may reduce optical transmission |
Thermal performance follows the sheet structure and thickness; fire performance does not indicate insulation performance |
Designed for projects with elevated fire-safety requirements, subject to product-specific testing |
Appropriate for transport facilities, public buildings, industrial interiors, and regulated construction projects when approved for the intended assembly |
Typical routes include EN 13501-1 for European reaction-to-fire classification, UL 94 for small-scale plastic flammability classification, ASTM E84 for surface-burning characteristics, and local building-code tests |
Never rely on resin-level or small-sample data alone; request reports for the exact thickness, color, coating, support system, and installation orientation |
