Point-fixed façades

The point-fixed façade is a system used to cover buildings with a shell of glass panels using point-fixing elements, which may or may not go through the panels, attached to a metal structure.
Steel cross pieces (also called spiders) are attached to a tubular metal structure, normally made of steel. The cross pieces also help ensure the perpendicular positioning and the alignment of the panels. Ball and socket joints are then attached to the spiders. Their function is to absorb any panel dynamic thrusts. On the outside, these fastening systems are finished with studs, which contribute to the general finish of the façade.
The glass panels are normally sealed with structural silicon, unless in case of thermal or sound insulation, or safety requirements.
The assembled system has a very modern look, giving a special character to the façade and contributing to a feeling of lightness.
Point-fixed façades are high performance systems. Their strengths lie in their transparency and aesthetic appeal. For this reason, they are used when strong visual appeal is required, or when there is a great need for transparency in order to enhance the interiors.