What Is the Longest Lasting Greenhouse Covering?

Introduction: Why Covering Longevity Matters

A greenhouse’s structure is only as good as its covering. For growers who invest in greenhouses — whether for vegetables, flowers, or tropical plants — the longevity of the greenhouse covering directly impacts maintenance costs, crop protection, and return on investment (ROI). This is why many ask:

What is the longest lasting greenhouse covering?

The answer depends on several factors including climate, usage type (commercial vs hobby), and budget. In this article, we compare the top three greenhouse covering materials — polycarbonate, glass, and polyethylene film — and evaluate which one lasts the longest while delivering consistent performance.

1. Polycarbonate Panels: The Long-Lasting Champion

Lifespan: 10–20 years

UV Resistance: ✅ Excellent (co-extruded layers)

Cost: