Quoins can be laid on new cast concrete or block walls. They can also be laid on existing walls as long as they are true.

In all cases a thin layer of ready-mixed mortar must be applied to the wall beforehand to ensure correct waterproofing.

The exact vertical alignment must be drawn on the underlying wall. The elements are fixed using Weser-Mix CO adhesive mortar and special stainless steel ties developed by Weser. Check that the element is level before tightening the ties to their final position, and then fill the tie hole with mortar before laying the next element.

10mm joints must be left between elements. Use wedges during laying to keep the joints regular, and remove them before jointing with Weser-Mix JL mortar..