Repairs made on a Heritage Sydney Sandstone Front Fence. 20 years old and still looking great!
When comparing traditional ribbon pointing as opposed to brick tuckpointing there are several differentiating factors.
As you can see from the above photo, the heavy oxide mix used on brick tuckpointing (top courses) can actually cause issues if not installed correctly. Mortar, often used in only one colour, is used to smear over the original bedding mortar which is visable where the red coloured mortar has fallen off. This is due to the smear coat method only being several millimetres thick or possibly too brittle to start with. In the instance above, this is definitely the case.
Another issue is that due to oxides’ cementitious effect on the mortar matrix, the mix can often be quite destructive to the 80-100 year old brick. Mortar, as also evident above, is smeared over the brick arris; partially covering the face. In tension, this can snap corners off and even break bricks clean in half–especially old, soft brick.
The biggest comparison, besides appearance, is that the traditional ribbon technique will protect the brick, whilst at the same time, provide depth and definition to the masonry facade. Standard tuckpoint can last quite a while but as opposed to the deeper ribbon pointing, the facade will age better and can last a lot longer.
After we knock out the joints, the replacement material will be placed and shaped to create what is known as ribbon pointing. The idea of ribbon pointing is to effectively ‘flatten’ the wall.
the balance that this will create will be surprising and should come up really well. More to come…
Whilst being involved with a major Melbourne Heritage Building Company, G.H. Veitch Stonemasons assisted with the facade restoration carried out in 2012 on the fantastic French-provinical-styled GPO in Melbourne CBD.
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