Karrat S-7 ventilated facade design
The system is characterized by the special shape of the “7” profile and the use of an elastic element that guarantees 100% uniform contact of the respective surfaces, absorbing uneven expansions between the panel and profile.
The plates can be made of natural stone, porcelain, etc…). The aluminum profile “7”, which is used to support it to an aluminum substructure, will have been previously fixed to the building envelope.
This fixing system allows the adequate transmission of the actions of the own weight and wind load of the facing to the supporting structure, increasing at the same time the resistance represented by the plates prior to the incorporation of the “7” profile, creating a longitudinal and hidden anchorage.
Karrat S-7 System Definition
This substructure is based on a frame of aluminum profiles as vertical battens mechanically anchored to the slabs and the horizontal ones fixed to the vertical frame or directly to the enclosure. The vertical profiles (40x40x2 mm tube) have the mission of collecting the loads received by the horizontal profiles and transmitting them to the enclosure through brackets (support -forged- and retention) that are attached to the wall by means of a fixing anchor and to the profile vertical using the connecting pin or self-drilling screw.
The mission of the horizontal profiles (double horizontal) is to collect the load transmitted by the plates (own weights and actions of the wind), these profiles are simply fixed on the vertical profiles with self-drilling screws. A pin joint (horizontal joint) has been designed, whose mission is to transmit the shear forces and allow the free expansion of the material. Said joint will be made close to the meetings of the vertical and horizontal profiles.
Manufacture of the Karrat S-7 ventilated facade
The “7” profile is installed in the factory, through an automated industrial process following strict quality control and according to self-control manufacturing conditions carried out on raw materials, manufacturing process and finished product. All this under the monitoring and control carried out by the EDUARDO TORROJA INSTITUTE OF CONSTRUCTION SCIENCES, which has granted the TECHNICAL APPROVAL DOCUMENT number 353-R.
For the first time, a mechanical fixing system for facade walls made of ceramic, porcelain or other materials is incorporated into the plate through an industrial process carried out entirely in the factory, with what this circumstance entails in terms of quality control and guarantee, without must be subsequently handled on site.