Explore our premium range of fibreglass roofing sheets, featuring the trusted Topglass® brand by Alsynite. Manufactured from commercial-grade Glass Reinforced Polyester (GRP), this industrial roofing solution is designed for strength, durability, and long-term performance across industrial, commercial, horticultural, and residential applications.

Topglass® translucent roofing is engineered to withstand harsh New Zealand conditions, offering excellent resistance to UV rays and atmospheric pollutants. Unlike standard fibreglass roofing products, it is designed to reduce yellowing and premature degradation, helping maintain light transmission and appearance over time.

Ideal for factories, warehouses, sheds, farm buildings, greenhouses, and covered walkways, fibreglass roofing provides a strong, cost-effective solution where natural light and durability are essential.

Backed by a 25-year warranty, Topglass® GRP roofing delivers reliable long-term performance for demanding environments where quality matters.