uPVC Basics · 7 min read
What is uPVC, and why Caribbean homes prefer it
2025-11-12
Unplasticised PVC stays rigid, skips the paint cycle, and outperforms steel and aluminium in salt air when specified correctly.
Rigid by design
uPVC means Unplasticised Poly-Vinyl Chloride: PVC without the resins that make other plastics flexible. That rigidity is why Domus frames hold their shape and seals through Caribbean heat and humidity.
Unlike steel, it will not rust-stain your walls. Unlike many aluminium systems, it does not transfer heat the same way and avoids the classic gasket shrink that lets water and salt into the joint.
White, reflective, warranty-friendly
Domus frames ship white: reflective, warranty-friendly, and easy to keep looking new with a damp cloth. No abrasives required.
For homeowners comparing total cost of ownership, fewer paint cycles and less corrosion repair often outweigh a lower first invoice on metal systems that age poorly near the coast.