The Scottish Lime Centre Trust provides course on Rendering and Harling with Lime or Surface Repair of Stone Courses

Many, many historic buildings were finished in lime mortars externally and then handsomely limewashed to provide both protection and decoration.

This course will enable you to apply a variety of external lime finishes including formal ‘lined out’ work to less formal textured harled finishes to a wide range of background types including matching in to existing finishes. Attendance at this two day workshop will let you get to grips with both hand casting and mechanical application techniques to effect a range of surface finishes and is relevant for the reinstatement of traditional lime finishes and for new build applications.

See details here.