What Causes Oxidation on Vinyl Siding, Explained
Vinyl siding oxidation is surface degradation of polyvinyl chloride (PVC) caused mainly by ultraviolet sunlight, oxygen, heat, and weather exposure. UV energy initiates chemical changes in the outer PVC layer, while oxygen and depleted stabilizers allow the reaction to continue, producing chalky residue, fading, roughness, and eventually brittleness. Key Facts at a Glance What Causes […]