windthrough

Windthrough is a term used in architecture and environmental design to describe the deliberate use of wind to move air through a building or urban space via permeable openings, vents, or porous facades. It refers to wind-driven ventilation and the broader pattern of wind-induced air movement that creates continuous pathways between indoor and outdoor environments. The goal is to improve natural ventilation, indoor air quality, and thermal comfort while reducing reliance on mechanical cooling.

The effectiveness of windthrough depends on wind direction and speed, building geometry, site context, and permeability of surfaces. Pressure differences generated by wind on façades drive air through openings, corridors, courtyards, and perforated screens. Design strategies often involve aligning openings, creating wind channels, and incorporating voids or atria that guide air flow. Factors such as noise, dust, weather protection, security, and energy efficiency must also be considered.

Applications and benefits include enhanced passive cooling in hot or temperate climates, improved occupant comfort, and potential reductions in energy use. Common techniques include cross-ventilation, continuous internal voids, louvers, perforated façades, wind scoops, and courtyard layouts. Limitations include variability with wind conditions, potential for drafts, and integration challenges with insulation and weather sealing.

Evaluation methods for windthrough performance range from wind tunnel testing and computational fluid dynamics to tracer gas studies and field measurements. Urban designers may study wind corridors and street canyons to assess pedestrian comfort and air quality related to windthrough strategies.