Passive Solar Roof

Therefore you want to allow the sun s light to shine on windows or even exterior walls only when it is cold outside and you want to block the sun s rays when it is hot outside.

Passive solar roof.

It typically is constructed of containers holding 6 to 12 in 150 to 300 mm of water on a flat roof. A roof pond passive solar system sometimes called a solar roof uses water stored on the roof to temper hot and cold internal temperatures usually in desert environments. This concept is based on the principle that the sun s light streaming into your home s windows generates heat. Passive solar homes can be any color just like normal homes but they lose a major advantage if they aren t painted to suit the climate.

The share of the home s heating load that the passive solar design can meet is called the passive solar fraction and depends on the area of glazing and the amount of thermal mass. Let s start with passive solar roof design. In passive solar homes effective weatherproofing and insulation and thus near airtightness is a necessity if primary reliance upon sunlight for climate control is to be possible. Light colored homes reflect the sun s light reducing the amount of heat retained in the walls and therefore lowering summer cooling loads.

When sunlight strikes a building the building materials can reflect transmit or absorb the solar radiation.