Sunscreening System Efficient energy management The concern for energy management in buildings is a relatively recent phenomenon. In the past few decades it has become clear to everyone that issues involving energy-saving constructions are much more complex than just good insulation and providing unlimited access to sunrays.
One of the most important challenges is the control over direct sunlight that penetrates the glass. When sunrays fall on a window a portion of them is reflected, a portion penetrates and a portion is absorbed by the glass. The latter portion of solar heat gain is converted into heat that subsequently radiates on both sides of the glass. When the glazing is protected by shading, the number of sunrays penetrating the glass and shading decrease considerably whilst the reflected sunrays increase.
In the design stage the building is to be protected as efficiently as possible against direct solar heat gain. A good balance is required between the shading capacity and a maximum input of daylight, which is important to visual comfort in office buildings. It goes without saying that the exposure of the various outer walls is decisive in the choice and dimensions of the Brise Soleil system.
For the choice and dimensions the respective shadow angles can be calculated for each outer wall. The shadow angles are calculated on the basis of the position of the sun relative to the glass. Durascreen Aluminium by Reynaers developed BS Control, a software package for the simple calculation of these shadow angles and the correct dimensions of the shading device for each outer wall separately. Once the required parameters are entered, the program immediately generates a 2D illustration.
Brise Soleil The Durascreen BS (Brise Soleil) system by Reynaers is an aesthetic and practical solution for nearly all new and existing buildings. It is available as a standard system or tailored solution. Brise Soleil is the general designation for a louver system that is secured to the outer façade and protects against heating and glare. BS systems are a budget-friendly way for architects to integrate more design modules into their designs and give their buildings that extra oomph. BS systems are available in various dimensions and types of fixed and moveable slats.
BS 100 The BS 100 movable louvre system consists of a range of aluminium elliptical louvres that can be installed vertically. The distance between the blades can be predetermined depending on the design of the building. The BS 100 louvres can be motorised to provide maximum control over the amount of daylight passing through the system.
Shape louvres : Ellips, glass.
Size louvres : 120 te 400 mm wide.
Large louvres of 500 mm and 700 mm available for bespoke solutions.
Walkway application : yes.
Anchors for curtain walls, brick and concrete walls and structural steel are available as standard.
BS 20 The BS 20 frame system is made as factory assembled frames for ease on site installation. The frames are made from extruded aluminium sections with fixed curved louvres. Frames can either be fixed or be top hung and pivotable to allow access behind them for cleaning.
Curved louvres of 80 mm or 140 mm wide.
Fixed angle of 30°.
Anchors for curtain walls, brick and concrete walls and structural steel are available as standard.
