ASTM-backed material comparison
Plastic Roof Sheets — Polycarbonate vs PVC
Which one actually lasts?
Both are lightweight and transparent. Both cost less than glass. But the similarity ends at the first hailstorm. This guide reveals the real differences between polycarbonate and PVC roof sheets — backed by ASTM test data.
Polycarbonate vs PVC: The Numbers Don't Lie
| Property | Polycarbonate | PVC | Test Method |
|---|---|---|---|
| Impact Strength | Very high, hail-resistant | Moderate, brittle under impact | ASTM D256 |
| Weight | Lightweight, easy handling | Lightweight | ASTM D792 |
| UV Resistance | Co-extruded UV layer | Limited surface protection | ASTM G154 |
| Cold Weather | Performs down to extreme cold | Can crack in low temperatures | ASTM D746 |
| Hot Weather | Stable under roof heat | Softening and warping risk | ASTM D648 |
| Yellowing | Low yellowing with UV protection | Faster discoloration outdoors | ASTM D1925 |
| Fire Rating | Available in rated grades | Varies by formulation | UL 94 / ASTM E84 |
| Lifespan | 10+ years | 2-3 years | Outdoor exposure data |
Polycarbonate costs 2-3x more upfront but lasts 4x longer. Calculate lifecycle cost — polycarbonate wins.
Four Types of Polycarbonate Roof Sheets
What to Look For When Buying
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UV protection type: co-extruded, not surface-coating
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Thickness for your span
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Expansion allowance: 3mm/m
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Warranty that covers yellowing
Get a Quote for Plastic Roof Sheets
shenyi@btwpcsheet.comManufactured under IATF 16949 certified quality management standards.