With salts permeating through this subfloor structure located in Brighton, VIC, it was apparent that there was something very wrong.
Efflorescence, aka salt attack is a calcium chloride/ zinc chloride build up caused through moisture in the subfloor or rising damp from subfoundation soil.
When viewed from behind the wall, the salt attack was much worse; formations of hygroscopic gel and rust was evident.
Through constant hygroscopic moisture (airborne) contained in the subfloor area, and the lack of ventilation, the damage to the bricks is inevitable.
Ideally, repairs should occur at a time prior to the state of deterioration as indicated.
Contact melbournebrickrepair.com for further information on subfloor conditions.
As a result of drilling and silicone injection having been previously used on the above Edwardian brick heritage property, located in the Melbourne suburb of Flemington, the failure of the process is evident in that, rising damp has still occurred despite the previous owner’s intent in trying to fix the issue.
Salt build-up behind the injected silicone is a very common result of injection which could have been avoided.
Despite the effort in trying to stop the moisture, the buildings previous owner was only trying to do what was right. The fact is that silicone injection seldomly works. It is really only for walls over 2 foot thick. It is certainly not for a heritage double brick structure. Discolouration, as seen above, affects both mortars joint and brick alike; hastening deterioration of both.
Visible deterioration of the mortar joint has occurred above the drill lines from chemical dampproofing.
By using a physical barrier instead, this wouldn’t have occurred. Rising damp is a very hard thing to prevent altogether. In all actuality, every masonry structure will encounter some form of moisture transferral from the clay sub-found material. In the case that physical barriers are installed, the decay of mortar and brick is slowed dramatically. By also increasing airflow under the floor, you are also providing a good natural method of easing rising damp.
Contact melbournebrickrepair.com for further details on how to prevent rising damp.
Looking to repair and replace your soft and crumbling brick? Let melbournebrickrepair.com help with matching hard-to-find heritage and vintage brick from yesteryear.
Soft brick is a common problem caused by continuous moisture cycle and exposure to the elements.
With our extensive service history, we can match and replace missing or soft brick like few others can.
Missing and soft bricks have been replaced with colour matched bricks brought in from another project.
Contact melbournebrickrepair.com for further details and pricing.
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