Information for greening technology in old 'bricks' to about circa 1870 can be found here, this page belongs to the ' Facing Masonry' section. Traditionally, the word 'brick' described rectangular blocks of fired or sun-dried clay, however, it now pertains to any rectangular unit layed in mortar for construction purposes. Low quality bricks are usually plastered and therefore don’t belong in the local category whereas Clinkers are significantly harder and come from more recent times, please check back with us if necessary.
There are roughly five commonly used types of brick, each ranked by their load bearing strength and weather resistance. Bricks that are fired at lower temperatures are far more porous and suck up water like a sponge! Over time this leads to accelerated deterioration through expansions and contractions caused by seasonal weather changes. You then need an external plaster to stop them completely crumbling (s. Photo).
Old bricks must be plastered over before installing wire trellises, but they should first be checked for damage to ensure their structural integrity, this is then labelled " ancient masonry. " Click the link for more details. Lintels, when drilling, should be avoided where possible. The natural strength and weight of climbers is strong and, if fastened into old mortar joints, can dislodge the grout and weaken its hold, if this happens the surrounding grout may have to be reinforced with composite mortar. Please see our instructions under drilling.
Taking into account the above-mentioned issues, all 5 construction styles are suitable, with their standard holders, for brick walls. We recommend hammer drill HB 44444 , for large and heavy duty kits HB 16210 . Alternatively, impact drills and universal drills can also be used.