What happens if a fastening point fails?
Both the figures below show the difference between a single fastening, in the top image, and a multiple fastening, in the lower image. If the fastening point in the top image were to fail, the attachment would abruptly fall off, even if it consists of several anchors. With the multiple fastening system in the image below, optical failure initially occurs due to the redistribution of the load. The usability of the construction inevitably suffers as a result, but it is possible to secure and protect the construction.
What options exist when multiple fastenings aren't feasible?
If multiple fastenings are not possible due to the existing conditions on the building, i.e. lintels, or for corner formation, it must be anchored with a single fastening system. There are different ways of doing this, depending on the substrate. There are some national approvals for single fastening with nylon anchors, but these are often limited to individual embedment substrates, e.g. concrete. Alternatively, through bolts or an injection system can be used. It is important that both the through bolts and the anchor rods are made of A4 stainless steel. For masonry, the only current option for single fastening is the use of injection anchors.
