
Window Installation According to UNE 85219:2023: Spain's Official Standard Explained
Spain has an official standard for how windows must be fitted — UNE 85219:2023, 'Ventanas. Colocación en obra'. It defines the anchoring spacing, the three-plane perimeter joint and the vapour rule that stops condensation, yet almost no homeowner has heard of it. This guide explains exactly what the standard requires, with the real numbers, so you can tell a code-compliant installation from a shortcut.
