I had a similar question not too long ago. And the key thing to remember is that there are different types of durability. Here's how GRP compares to other materials when it comes to different ways of being durable.
1 - Resistance to Elements: Because it doesn't rust or rot, GRP is a better choice than wood or metal in a variety of harsh conditions. Especially in damp regions and coastal areas, where corrosion due to salt can be a big problem.
2 - Lifespan: GRP can last a long time with very little maintenance. For instance, a GRP roof can last upwards of 30 years before needing any major repairs or replacement, whereas traditional wooden roofs may require attention every 15 to 20 years, and metal roofs may need regular maintenance to keep rust at bay.
3 - Structural Integrity: GRP maintains its structure remarkably well under substantial loads and pressures. It has a high strength-to-weight ratio, which means it can carry heavy loads without buckling, a clear advantage in constructions that demand materials with high-strength parameters.
4 - Flexibility and Adaptability: GRP can be manufactured to adapt to complex designs without sacrificing its durability. This is typically done using GRP moldings, as this Curley GRP page shows. That versatility makes the material a good choice for a variety of architectural styles.
