What are the main embedment mechanisms for rainscreen facades?
There are three different embedment mechanisms that form the basis for attaching a rainscreen facade: by frictional connection through expansion, guided connection through undercuts or adhesive bond through composite. The current part of our guide for rainscreen facades will illustrate how these three principles work and how they differ.
How does a frictional embedment (expansion) connection work?
Nylon anchors and through bolts generate their tensile capacity in the substrate through their frictional grip. When using a nylon anchor, this anchor is pressed onto the wall of the drilled hole by tightening the screw. The greater the pressure, the greater the friction and therefore the force required to pull out the nylon anchor again. With this form of embedment, it must be observed that the high expansion pressure requires corresponding axle and edge distances to prevent substrate splitting or edge fracturing.
