News / masonry absorption

• Jun 13, 2013

  Efflock ideal for building in high saline areas

  I gave a talk about Efflock to local builders at a Master Builders Association meeting out at Campbelltown last week. An interesting problem was raised, which I have touched on briefly in a previous blog.  A builder at the meeting told me that the soil in the Camden area south west of Sydney is notorious for high salinity. The high salt content presents major problems for standard construction where rising damp can have very damaging effects on brickwork below the DPC or 'Damp Proof Course' level. The DPC is typically located around floor level, meaning that numerous courses of bricks...

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• Apr 28, 2013

  Efflorescence on ABC1's Gardening Australia:

    Efflorescence is such a common building defect around Sydney and Australia. Did anyone else see Gardening Australia last night? Above: Check out the efflorescence coming up out of the grout joints from the tile bed on these balconies just next to Costa Georgiadis as he reported from an apartment complex in Redfern, Sydney. There was a fair bit of efflorescence seeping from render as well during the story. Using Efflock is the very best prevention for efflorescence. So simple and very economical.

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• Mar 14, 2013

  Capillary action

  Capillary action (also known as wicking) is a common problem in buildings. Like the very action we depend on, of blood flowing through our bodies capillaries to our extremities, water can also flow and be drawn along or through many building materials. Roof leaks are one example where capillary action is often responsible.   Picture: Capillary action on a clay brick. Ordinary tile screed of the same sample size would reach total saturation in around 10 minutes . Concrete and masonry, even of high quality contains capillaries. Common problems we see that arise from water flowing through concrete include: Concrete...

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