SunSquare was established in Vienna 25 years ago. The first prototype of the SunSail was manufactured according to an idea had on a rooftop terrace by the designer Gerald Wurz. At that time, the company was based in Vienna and specialised in precision mechanics; but because of the great demand on space capacities, it soon moved to Lower Austria. Today, there are more than 50 worldwide partner companies designing and installing original SunSquare SunSails.
As SunSquare tells its customers, the construction consists of the drive with shaft, steering, sails, supports and fixtures. It needs four or six mounting points depending on the system used, and the shaft must be fixed by supports on the floor or on the wall. The two sail ends are attached to one or two points, as this is where the biggest loads occur, up to a maximum of 70kg of tension. The standard process is the attachment of at least two points on the structure and two points on floor supports. The shaft rotates an electric motor that is connected to a wind gauge and automatically turns the sail when wind speeds exceed 40km/h. Dynamic wind forces are started via a spring system. This is possible because the system is connected by rollers to the sail ends, which ensures that the sail remains taut but yields when the wind blows. In addition, the sail is always easy to get out of the wind and the slope of the sail is designed to allow rainwater to run off.
SunSquare SunSails can shade roof gardens, terraces, children's playgrounds or car parking. The sail is made of coated acrylic or PVC mesh, which are available in several colours. Dyneema ropes are used for the cable pull and the brackets and poles are made of V4A grade 1.4571 stainless steel. All drives are additionally equipped with an emergency hand crank. Each SunSail is a custom-made shading solution, designed according to the individual needs of the client.
SunSquare constantly strives to push the boundaries of what is technically feasible and, together with local partners, finds innovative solutions for sun protection. This is currently the case in Dubai, where a 500m² terrace is shaded by the world's largest SunSquare system.
In early 2018, the system went into operation. The task was to shade the terrace - located on the coast of the Dubai Palm Jumeirah - with as few supports as possible. The solution was a SunSquare awning system of the type AX-II, with innovative supports that hover in mid-air. These hinged supports transmit the tensile forces to the few ground supports via thin steel cables. This achieves a uniform shadow area without interfering too much with the original architecture of the terrace.
A total of 14 solar sails are controlled centrally from one control module, which also makes it possible to control the individual sails. This allows the local operator to create different moods with the sails. The LED lighting also supports the night-time ambience, as the sails act as reflectors for indirect illumination.