Glass maximizes traditional clarity and long-term appearance; multiwall polycarbonate can improve insulation and impact resistance at lower structural weight.
Start with the constraint
Panel construction matters more than the material label alone. Twin-wall and multiwall polycarbonate trap air, while glass performance depends on thickness and whether single or insulated glazing is used.
What changes the decision
Polycarbonate can scratch and age; glass can break and requires a structure designed for its weight. Replacement availability matters for either system.
What to verify before buying
Match glazing to climate, heating plan, hail or impact exposure, frame capacity, and desired appearance rather than choosing from transparency alone.
How we research greenhouse kits
We compare frame geometry and materials, covering, included components, ventilation, climate fit, working dimensions, anchoring, shipping method, assembly burden, upgrade paths, and completed build cost.
Prices, specifications, firmware, and configuration-driven features can change. Check the current manufacturer page and local requirements before buying or installing equipment.