Green Roof Heat Loss

Thermal reduction and energy conservation.

Green roof heat loss.

Co benefits of heat island mitigation strategies reduced air pollution and greenhouse gas emissions. Green roofs remove heat from the air through the process of evapotranspiration and also act as. They can reduce heating by adding mass and thermal resistance value also can reduce the heat island by increasing evapotranspiration. A 2005 study by brad bass of the university of toronto showed that green roofs can also reduce heat loss and energy consumption in winter conditions.

Because green roofs store water in the growing media and plants latent heat loss is accomplished via transpiration from plants and evaporation of moisture from the growing medium collectively referred to as evapo transpiration. In winter the green roof minimizes heat loss through added insulation on the roof. Importantly this also moderates heat flow through a building by shading increased insulation and thermal mass. Energy conservation translates into fewer greenhouse gas emissions.

Green roofs improve and reduce energy consumption. Green roofs play a major role as a sustainable solution to minimize the heat island effect. Under a green roof however the fluctuations were in the order of 6ºc. This energy is known as latent heat.

This paper discusses about the effects on the surrounding temperatures if the existing flat roofs in the. Green roofs improve air quality.