As a result, homes will make better use of the sun's rays and strong drafts will be avoided. Likewise, people will spend more time in the streets, even on rainy and cold days. Adequate planning favors urban quality of life and a better life in the city.
Climatic factors influence comfort and the possibility of being outdoors in cities. They´re a decisive element that neither architecture nor urban planning should ignore. Constructing tall buildings, for example, generates extensions of shade and strong winds in streets and squares, so they are not recommended in places where there is little sun or a lot of wind.
The climate between buildings and how this affects the interior of those buildings influences the quality of life. Careful climate planning should be a mandatory task for any new building. Cities have the possibility of creating opportunities to enjoy the sun and the shade, the rain and the wind.
Effects of the sun/ take advantage of sun – heat
The presence or absence of sun influences the urban landscape. In cities with high solar incidence and high temperatures, the urban structure should have leafy trees and buildings with rather opaque walls with small openings.
In colder climates, such as the Scandinavian countries, where the sun's rays enter at a lower angle, buildings are often grouped together and rise no higher than two or three stories with sloping roofs. On the other hand, streets, squares and gardens are small.
Thanks to this structure, the wind is redirected above the cities, freeing the streets and gardens of its effects. The low volumes and the sloping roofs allow the sun's rays to penetrate between the buildings, heating the concrete and the pavements.
Vertical and horizontal rain
Rain in cities can fall in two ways: vertically or horizontally. The second corresponds to cities dominated by tall buildings. This is the case in the Dutch city of Rotterdam, in which the central area is dominated by towers, and so the strong winds that run between the streets when it rains, deflect the water in this direction. Other cities, as a result of this case, have opted for buildings with lower height, which allows the wind to pass over them without affecting the rain.