Tag Archives: uPVC performance

The Real Difference Between Aluminium and uPVC Performance | Expert Guide

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Section 1: Performance Starts Long Before Energy Ratings When homeowners begin comparing aluminium and uPVC windows, one specification often dominates the conversation: the U-value. Energy ratings have become one of the most familiar ways of judging modern glazing, leading many people to assume that the window with the lowest published figure must automatically be the […]