Advantages of green roofs

Green roofs as an “airbag”
Walls and roofs of buildings have the properties of heat accumulators. The resulting phenomenon is called the “heat island”. It involves an increase in the air temperature in agglomeration centres by at least 1 to 2°C. Sometimes the temperature in a very crowded city centre rises by as much as 10°C. At the same time, the air humidity decreases. That is why vegetation in such places is so important, as it creates a barrier to the greenhouse effect on the roof surface. This happens through the evaporation of water accumulated by plants and reflection of solar radiation. Such an “airbag” results in higher humidity and lower temperatures in and around the building. For example, a roof covered with bitumen tar paper heats up to 60-70°C in summer, while a green roof heats up to 25-40°C. These numbers speak for themselves.