vensters

Venster is the Dutch term for a window, an opening in a wall that provides daylight, ventilation and external views. A venster typically consists of a frame, a movable or fixed sash, and glazing. It can be fixed to admit light without opening, or operable to control airflow. In Dutch architectural practice, common operable types include draai-kiepvensters (tilt-and-turn), kiepvensters (tilt), and schuifvensters (sliding windows). Windows may be framed in wood, aluminium, steel, or kunststof (PVC); the choice affects durability, maintenance and insulation.

Modern vensters often use double or triple glazing for improved energy efficiency and sound insulation, within insulated frames. They may feature low-emissivity coatings, laminated or tempered safety glass, and enhanced weather sealing. Security considerations, such as robust hardware and reinforced frames, are common in many contexts. The design of vensters balances daylight provision, privacy, and heat loss, and can include architectural variants like large glass facades, transom or sidelighting, and skylights.

Etymology and usage: The word venster derives from German Fenster and ultimately from Latin fenestra; the term is cognate with the English word fenestra. In historical Dutch building practice, vensters evolved from small openings to larger glazed areas as glassmaking and manufacturing techniques spread. Culturally, vensters shape urban and residential aesthetics, from narrow canal-house windows to contemporary energy-efficient façades. In modern construction and renovation, vensters are central to building performance standards, daylight planning, and indoor comfort.