In modern construction, the decision to select the right window material extends far beyond aesthetics. It directly influences a building’s energy efficiency, maintenance costs, and structural longevity. Among the choices available—wood, aluminum, steel, and uPVC—the unplasticized polyvinyl chloride (uPVC) window has rapidly emerged as a preferred solution for its impressive balance o... https://www.otherarticles.com/home-improvement/diy/419455-cost-to-lifetime-analysis-how-upvc-windows-deliver-long-term-roi.html