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Copyright:

White Arkitekter

NSM Vårdbyggnad

Architect: 

White Arkitekter

Client:

Region Skåne

Location:

Malmö, Sweden

The two health care buildings will be part of the new hospital area of Malmö city. The new Malmö Hospital creates the conditions for a care in which human beings are in focus. Flexibly designed examination rooms create opportunities to conduct more personalized care. For increased patient safety and integrity, the care departments consist of single-patient rooms.

Solar control vs. Daylight

Our aim when selecting appropriate glass types for each area of the façade was to increase views out without compromising daylight.

It is common knowledge that clear TGUs (Triple Glazing Units) in areas highly exposed to solar radiation most likely will result in overusing shading blocking the views out and effectively reducing the daylight within the occupied space (especially if one considers that the glazing is selective while the shading is not). The opposite is the effect in north facing facades and heavily shaded areas; solar control TGUs (with low light transmittance) will unnecessarily reduce useful daylight and the quality of the views out.
Finding the right balance between glass and shading performance was a large part of our work.

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Facade system

A hybrid façade system was investigated, which consists of single pane (outer skin) and a Triple Glazed Unit (inner skin). The shading element is placed within the cavity between the inner and outer skin. If the system is properly designed, natural ventilation can extract the heat from the cavity, reduce the air temperatures and hence the heat transmission to indoors.

Through a parametric study we analyzed the effect of the natural ventilation and different solar control coatings on the performance of the system. Additionally we provided recommendations regarding glazing build-ups and the need for proper ventilation in different facade areas.

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Solar Exposure

An essential part of our work was to divide the façade into different areas according to their solar exposure (transmitted solar radiation through the windows). Areas highly exposed will need increased solar protection (provided either by a solar control glass or frequently used shading) and areas less exposed could significantly benefit from clear glasses with increased Light Transmittance values.

Our analysis was carried out considering the frequency of shading use (highly affecting the views out) and the daylight levels within the occupied spaces.

The division of the facades into solar exposure areas can have a large impact on the occupants satisfaction.

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