Information for greening technology in old 'bricks' to about circa 1870 can be found here, this page belongs to the ' Facing Masonry' section. The word 'brick' was used mainly for individual units previously burned in the oven, 'baked' stones cannot be clearly distinguished from the terms 'bricks' and ' brick clinkers'. Low quality bricks are usually plastered and therefore don’t belong in the local category. Clinkers tend to be harder and come from more recent times, please check back with us if necessary.
Depending on the bricks construction material - (loam or different clays), and 'baking' temperatures, bricks are categorized by their strength and weather resistance between simply bricks and the very hard clinker bricks. Bricks that are not fired at a super-hot temperatures are porous and prone to absorb water like a sponge over time and then burst when freezing. You then need an external plaster, otherwise they fall apart during weathering (s. Photo). Even with historic brick masonry regarding weathering, sometimes it is then equalized by a colored paint.
Old failing bricks and walls that are to be evaluated on whether they are suitable for greening or not must be plastered over before holders are attached with cables in them. After plastering it then is plastered 'age-old masonry.'
Lintels over doors and windows should not, if possible, be drilled into. The natural pulling by plants is strong. If holders are placed in joints, the grout inside is sometimes not viable enough and needs to be rehabilitated. The problem is mostly obscured and hidden by externally intact joints and only detected during drilling. Please also use the instructions under the drilling section!
Sometimes one needs to respond to the arrangement of rope systems on jumps, terraces, profiles, shapes, etc. With free standing brick walls, because of crack formations in peripheral areas, growth aids cannot be attached.
Considering the stated problem cases, all 5 constructions with their standard mounts are suitable for brick walls. We recommend hammer drill bit HB 44444, with heavy and massive kits HB 16210 ; alternatively percussion drill bits and universal drill bits are useable.