SR300 An analysis of wind-driven rain in New Zealand (2013)

Wind-driven rain is the term used to describe how much rain hits a vertical surface, for example, the wall of a building. Without the presence of wind, raindrops would fall vertically and a roof with eaves would be all that was needed to protect windows and other sensitive building elements in the wall from getting wet. The wind however, causes raindrops to deviate from a vertical trajectory so they can strike a wall, typically forming a film of water on the surface.

This paper presents an analysis of wind-driven rain across 34 sites in New Zealand, and the results are compared with selected data from other countries.