Method for the cooling of a plurality of zones and of a microclimate in the vicinity of the plurality of zones of a building that has an external surface divided into the plurality of zones and an internal space, the method comprises: - arranging nozzles for dispensing liquid spray, preferably water spray in the zones, - providing pipelines connected to the nozzles for supplying the nozzles with liquid, - providing valves connected to the pipelines for regulating the liquid flow rate in the pipelines, - arranging moisture measuring sensors provided with an external measuring surface in the zones of the external surface of the building for measuring a percentage of moisture on the external measuring surface, - providing a central unit in operational connection with the valves, and in data connection with the moisture measuring sensors, characterised by that the moisture measuring sensor provided with the external measuring surface, in addition to being adapted for measuring the percentage of moisture on the external measuring surface, it is also adapted for measuring a percentage of drying rate, and in the course of the method: - measuring the percentage of moisture on the external measuring surface using the moisture measuring sensor and determining the percentage of drying rate data, - providing a plurality control programs stored in the central unit, which control programs store various first percentage of moisture values, - receiving and processing the percentage of drying rate data and the percentage of moisture data measured by the moisture measuring sensor using the central unit, - selecting a control program from among the plurality of stored control programs using the percentage of drying rate data received, and - opening the valve of the pipeline of the nozzle in the zone of the moisture measuring sensor if the percentage of moisture value received is lower than the first percentage of moisture value stored in the selected control program, and dispensing liquid spray with the nozzle onto the given zone. - arranging nozzles for dispensing liquid spray, preferably water spray in the zones, - providing pipelines connected to the nozzles for supplying the nozzles with liquid, - providing valves connected to the pipelines for regulating the liquid flow rate in the pipelines, - arranging moisture measuring sensors provided with an external measuring surface in the zones of the external surface of the building for measuring a percentage of moisture on the external measuring surface, - providing a central unit in operational connection with the valves, and in data connection with the moisture measuring sensors, - measuring the percentage of moisture on the external measuring surface using the moisture measuring sensor and determining the percentage of drying rate data, - providing a plurality control programs stored in the central unit, which control programs store various first percentage of moisture values, - receiving and processing the percentage of drying rate data and the percentage of moisture data measured by the moisture measuring sensor using the central unit, - selecting a control program from among the plurality of stored control programs using the percentage of drying rate data received, and - opening the valve of the pipeline of the nozzle in the zone of the moisture measuring sensor if the percentage of moisture value received is lower than the first percentage of moisture value stored in the selected control program, and dispensing liquid spray with the nozzle onto the given zone.