This website uses cookies to make it easier to use. By visiting this website you agree to those cookies.
Hide this message
Brakel
Language
Menu

Comfort at Residentie Boerhaave restored with night cooling

« Back

Natural ventilation turns out to be the solution for heat problem

During warm periods, residents of the Residentie Boerhaave in Roosendaal complained about excessive heat. After extensive research, night cooling proved to be the solution to this problem – a solution that not only results in satisfied residents but is also sustainable.

At the end of 2015, after continuing complaints from residents, the St. Stadlander housing association carried out research into the ‘thermal comfort‘ of Residentie Boerhaave. Amongst other things, this investigation showed that the indoor temperature exceeded the comfort limit of 28 degrees on 42 days of the year. This was reason enough for the housing association to seek a solution.

Heat accumulation in concrete construction

The application of sun-protection film on the skylight and the blowing in of outside air were both considered as possible solutions. However, the real issue was dealing with heat accumulation in the concrete construction. Without cooling, the concrete construction would heat up during long hot periods to such an extent that it led to complaints. The additional blowing in of (warm) outside air was not an adequate solution because it would not cool the concrete sufficiently.

Night cooling with natural ventilation

Night cooling was discovered to be the solution. At night, cold air is supplied through the façade on the basis of thermals and hot air is discharged through the roof. The cold air cools both the concrete and the interior space, which creates a comfortable indoor climate during the day.

Sustainable, silent solution

This solution has the additional advantage of being energy-efficient and silent. In the end, use was made of the natural principle that hot air rises. It is an effective, silent ventilation system that can be used both during the day and at night.

Using the existing SHEVS

In the construction of this residential complex, a natural smoke and heat extraction system was used for fire safety purposes. This system consisted of Brakel® Ventria ventilation windows which were used for to supply air to the façade (ground floor) and for air dissipation in the glass roof. The ventilation windows in the glass roof were also used for daily ventilation. This did not affect the opening windows on the ground floor however (they are located both inside and outside along the walking route).

Addition of glass louvres for night cooling

Brakel Atmos installed glass louvres for air supply on the 1st floor of the residential complex in order to achieve sufficient thermal efficiency. These glass louvres - Brakel® Estra - fit aesthetically in the façade and are located at a location where they do not pose a ‘danger‘ to residents (unlike the opening windows on the ground floor, they are located in a place where they cannot be reached by residents).

Control

The natural ventilation system is controlled automatically based on the indoor and outdoor temperature.

Residents‘ meeting

Extensive consultations were held with the residents before the choice was made for night cooling. Based on explanations, experience and examples, this solution was accepted and has resulted in satisfied residents.

Share:


Europe
Austria
Belgium
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hungary
Ireland
Italy
Latvia
Lithuania
Luxembourg
Malta
Netherlands
Norway
Poland
Portugal
Romania
Russia
Slovakia
Slovenia
Spain
Sweden
Switzerland
Ukraine
United Kingdom

Africa
Asia
Australia
North America
South America
Europe
Austria
Belgium
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hungary
Ireland
Italy
Latvia
Lithuania
Luxembourg
Malta
Netherlands
Norway
Poland
Portugal
Romania
Russia
Slovakia
Slovenia
Spain
Sweden
Switzerland
Ukraine
United Kingdom

Africa
Asia
Australia
North America
South America