Sunlight cheers us up – surely that’s something we’ve all experienced. But even without the sun itself, natural daylight makes a noticeable difference to our wellbeing. Scientific studies have shown that human health and wellbeing are influenced by daylight far more than previously thought: Light is an elixir of life. But as with so many things in life, it’s a question of getting the right amount. Solar protective glass and shading systems provide protection from the negative consequences of too much exposure to the sun.
Natural sunlight reduces ‘sick building syndrome’
Previous ‘lighting engineering’ mainly focused on optimising artificial lighting. The aim was to eliminate the dynamics of daylight as far as possible. But we now know that our need for light was underestimated. Artificial lighting in the workplace is one of the most common causes of what is known as ‘sick building syndrome’; natural daylight, on the other hand, has a positive effect on wellbeing, even when it brings with it less desirable aspects such as additional heat and glare.
Maximum daylight thanks to minimal frame
In planning practice, this means more attention will have to be paid to the amount of incident daylight in all future considerations. Windows, doors, façades and fixed glazing consisting of heavy-duty steel profile systems help to optimise this, as the minimal area occupied by the frame maximises the area of glass. This creates bright and inviting rooms that promote health and wellbeing.
Tested steel profile systems for light structures
Jansen provides steel profile systems that make it possible to manufacture light structures in a reliable and economical manner. Windows, doors, façades and fixed glazing made up of Jansen steel profile systems have been tested and approved with regard to tightness against driving rain, air permeability and wind load resistance. With CE labelling according to EN 14351-1, the same degree of security can be provided for special window shapes, such as bay windows or skylights. In façade construction, components measuring up to twelve square metres can be produced without any problems in terms of heat and fire protection.
Reliable heat input through insolation
DIN 4108-2 describes a simplified method for determining the permissible solar transmittance value (S perm). The g value (total energy transmittance of the glass) and the reduction factor for solar control systems (Fc) need to be taken into account. These may be affected by the use of solar control glass or sun-shading louvres. EN 13363 Parts 1 and 2 describe methods for calculating the values.
Structural solar protection on buildings
Special insulation glass provides effective protection against unwanted solar irradiation. Jansen therefore tests its window and façade elements in combination with various types of solar control glass from renowned manufacturers. The range includes a special anchor for attaching external sun shading systems to the façade, which allows currently available systems to be secured safely and attractively to the steel profile.