By comparing different purposes to each other you will find a balanced solution.
With our extensive experience we will help you finding a solution.
With a double-layer glazing window about 70% of the sunlight gets into the building’s interior without any sun-shading.
With an interior high-reflective sun-shading material the amount of heat coming from outside will be reduced considerably. Only about 3 % of the solar heat will come into the room. However, the darkening effect will be considerable.
Thus a discrepancy between daylight and energy transmission.
A very stiff and inflexible curtain will not cause much living comfort (let’s say: “it’s hanging bad”) and that’s the reason why such a curtain will seldom be drawn. However, in that case its heat protecting function cannot be fulfilled.
Shadowing of computer work stations + contact to the outside + high ecological standard + sustainable material ecology:
That’s what you get when using hori:zon systems: vertically movable panels for more daylight, design, comfort, view and an efficient energy management.
Here you will find more detailed information regarding hori:zon.
The less solar heat the window allows to get into the building the less the curtain –due to its reflection properties - contributes to reduce the overall energy transmission value g_tot of window and curtain.
Normally a lower energy transmission value of the curtain means more stiffness and thus the darkening effect is higher.
There is a discrepancy between a low energy transmission factor and sufficient natural light in the room that require a careful weighing. A very stiff and inflexible curtain will not cause much living comfort (let’s say it’s “hanging bad”) and that’s the reason why such a curtain will seldom be drawn. However, in that case its heat protecting function cannot be fulfilled.
You may also demand high quality standards regarding the fabrics used. You can choose from a wide range of natural fibres, recycled synthetic fibres and the latest synthetic fibres as well.
Not only a natural entry of light (contact to the outside: kindly see the hori:zon system) and a comfortable indoor climate (use of natural materials), but also the ecological balance of the fabrics used – such factors together are important aspects of a good and effective interior sun-shading.
• daylight in the room vs. darkness and artificial light
• keeping the sun’s heat outside in summer
• keeping the room’s heating inside in winter