Windvaans

Windvaans, or weather vanes, are simple instruments mounted on rooftops or towers to show wind direction. A windvaan typically consists of a freely rotating vane attached to a vertical pivot, often paired with a fixed compass rose that marks the cardinal directions. As wind flows against the vane, the device aligns with the air current, providing a quick visual cue of wind direction. Historically, wind vanes have served both practical and decorative purposes on homes, churches, and public buildings.

The concept of wind indicators dates to antiquity, with early examples appearing in ancient Greece and Rome. In medieval Europe, weather vanes became common on church steeples, where large ornamental figures such as roosters were mounted as symbols and weather indicators. The rooster motif became especially widespread, and many historic examples survive as cultural landmarks. In later centuries, metalworking advances improved durability and weather resistance.

Modern wind vanes are normally made from weather-resistant metals such as copper, brass, or stainless steel, though wooden or plastic variants exist for decorative purposes. The design balances the vane so that a light wind will cause it to rotate freely; a counterweight or fulcrum reduces friction and keeps the device stable. The figure or arrow on the vane is often shaped to catch the wind and to indicate orientation, while a fixed compass rose or letters (N, E, S, W) aid interpretation. Some vanes include weatherproof finishes or patina to resist corrosion.

Wind vanes are still widely used on residential and public buildings for ornamental value and as a simple wind indicator. In addition to traditional metal vanes, contemporary versions may incorporate weather instruments, such as thermometers or digital sensors. While not a substitute for modern meteorological equipment, wind vanes provide a visual reference and contribute to historical or architectural character.