It is important for the dead weight and the wind suction loads to be transferred. Regardless of whether the substructure is made of wood, aluminium, corrosion resistant or stainless steel – the fixing plays a supporting role in the truest sense of the word. When facades fail, they present a danger to public safety as well as life and limb. Fixings for installing facades are therefore legally safety relevant, while their ETA is absolutely essential.

Substructures are able to bear their dead weight as well as that of their cladding and the wind load through secure fixings, transferring the loads to the supporting wall. The RVF substructures and fixings usually constitute multiple use (redundant system). If an anchoring point were to fail, the loads would then be transferred on through the neighbouring fixings to the cladding or substructure.

fischer offers a large variety of fixings that are suitable for anchoring rear-ventilated facades, among them the high-grade, secure SXRL nylon frame fixing with ETA for numerous porous and solid bricks. The frame fixings are provided with a suitable special screw made of zinc-plated or stainless steel, guaranteeing the correct screw-in depth into the plug and therefore guaranteeing the system’s functionality.

Injection-type anchors such as the approved fischer systems FIS V, FIS SB and FIS EM are recommended for fixing particularly high loads. They are suitable for practically every substrate – even those that are less load-bearing. They can therefore be applied in redundant systems as well as individual fixings.

Classic bolt anchors such as the fischer FAZ II made of stainless steel (A4) have also firmly established themselves for fixing heave facade claddings in cracked concrete. They are also suitable for non-redundant anchoring points and facade substructures with large span lengths. It is important for the anchor to be suitable for cracks. If the width of the crack in the concrete changes, the anchors expand in the drill hole, therefore maintaining their load-bearing mechanism.

Nowadays planners, structural engineers, facade and metalworkers benefit overall from the broad selection of certified and approved fixing systems – to the benefit of the safety and effectiveness of an environmentally friendly, optically appealing rear-ventilated facade construction.

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