Solar Wall as Daylighting System
Daylight provision for building - in perfect quality
By means of light scattering direct sunlight becomes better suited for room illumination.
The homogeneous illumination is amenable and enhances security too e.g. in workshops. The daylight is distributed
throughout the interior with no glare, there are no hard cast shadows. The large choice of products with different
light scattering qualities and added solar protection ensures, that an optimum quality and quantity of light and energy
is entering the building. Visual transmittance and total solar energy transmittance (g-value) may be varied independently
to some extent according to the demand.
||This super market in Tyrol uses a daylighting systems - and thus provides during the whole daytime
amenable, natural light without too strong dynamics, which might irritate the customers. |
(Architect: Dominique Perrault,
The daylighting systems have an excellent thermal resistance and
provide a high insulation value.|
They achieve the same insulation performance as low-e triple glazing with U-values down to 0.5 W/m²K or even better.
In addition, they keep this insulation quality nearly constant even for very low ambient temperatures or as roof glazing.
In conventional low-e glazing units the heat resistance may decrease essentially for these situations due to strong convection.
According to calculations using EN 673 the performance might deteriorate in extreme situations by 45%. Daylighting elements with transparent insulation are able to suppress convection much better.
The three variants of
Transparently Insulated Solar Walls:
as heat storage
Integrated in a facade insulation system it does not only reduce thermal losses by insulation,
but heats the building as well by using sun's energy !
as daylighting system
Daylight without glare, no necessity for rollers, Venetian blinds
or artificial lighting. Daylighting systems save electrical power and protect the environment!
as enhanced insulation system
Glazed solar walls utilize the energy of the sun to provide a warm second coat for the building
and thus reduce the heat losses or even prevent them totally!