roof cooling
- for e.g. house, barn, factory, warehouse
Premises directly below roof areas heat up considerably in the summer months. Staying in unair-conditioned attic apartments quickly becomes uncomfortable, especially during long periods of warm weather, which we often have in Germany. But even in summers with "normal" temperatures, the heat from the sun's rays accumulates under the roof and heats up the rooms below. With our Eco Water Solution - complete system for roof irrigation (alternative air conditioning) this can be quickly and easily remedied!
You use the collected rainwater to cool the temperature of the roof and the rooms below. Depending on the method and the surface of the roof, between 1 and 5 liters per square meter evaporate every day. Every liter of water that evaporates results in a cooling capacity of around 670 Wh!
Quoting:
In order to prepare an offer, we need more detailed information on the existing roof area (size, material, inclination), the height of the roof and information on whether there is already a cistern for storing rainwater. You are welcome to request the relevant questionnaire on roof cooling from us - we look forward to your inquiry. This process shows once again that our company Eco Water Solution takes both economic and ecological aspects into account. Further information on roof cooling, the requirements and prices can be found here.
Investigations on roof cooling with rainwater - as an example on the Ökoservice office building:
In order to be able to feel and measure the difference, we only cooled one of two halves of the roof of the former Ökoservice office building during the test phase:
For example, on August 5, 2003, the daily maximum temperature was 38° Celsius. In the non-cooled rooms, the thermometer rose to 33°C, while in the offices under the irrigated roof area, only a comparably pleasant 28.5°C was recorded as the maximum temperature.
We achieve this cooling effect with only a small amount of energy and money. Of course, the cooling water runs back into the cistern via the rain gutter in a closed water circuit. It has been shown that even the heated water achieves sufficient cooling to achieve the desired effect in further runs.
In 2015, periods of extreme warm weather reached Germany again. Here, the cooling effect could even be increased by means of a spraying technique that has now been further developed. While the reference rooms showed room temperatures of around 33 °C, the thermometer in the rooms equipped with roof cooling did not rise above 27 °C. Thus, a pleasant stay in the rooms without cost-intensive air conditioning could be guaranteed.
The spraying facilities are adapted to the local conditions. Special spray heads ensure that large areas are humidified, as well as spraying individual elements such as dormers or windows. The images below illustrate these functions.
It is certainly also possible to install a roof cooling system with rainwater for your existing roof area.
We have extensive experience and calculation models to fully irrigate even complicated roof geometries. In this context, we calculated and measured the energy savings in detail as part of a student research project.
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