uPVC (unplasticized polyvinyl chloride) doors have become increasingly popular in modern construction for their durability, energy efficiency, and versatility. Here's an overview: Durability: uPVC doors are highly durable and resistant to weathering, corrosion, and rotting. Unlike traditional wooden doors, they don't warp, crack, or fade over time, making them ideal for both interior and exterior use. Energy Efficiency: uPVC is a poor conductor of heat, .