News / DPC

• Jul 02, 2015

  Elastomeric paints are a wise choice for efflorescence prevention

  Without damp or water penetration, efflorescence cannot occur. Efflorescence is caused by a concentration of salts that have been dissolved by moisture and transported by capillary action to a point of discharge where the moisture evaporates, and leaves the salts behind.  Water is the most destructive compound that works against the health and longevity of any building, in so many different ways other than just efflorescence. Therefore, a quality building specification must always pay careful attention to preventing the ingress of water and damp in every situation.  For over a decade, a cement rendered and painted finish has been very popular in Australia. Render has often been applied...

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• Jun 06, 2014

  Keep face brickwork looking sharp with Efflock

  DIRTY BRICKS!!'Bowral Blue' face bricks cost $2.50 each or around $225.00 per square metre installed. Unfortunately, because mortar is ordinarily porous, it holds moisture and dirt - perfect for algae and moss to flourish. Just observe 1-2 year old buildings next time you're out driving to see what we mean. For only $3/m2 Efflock repels water, keeping mortar sharp, clean and efflorescence free.    For further protection, remember Efflock can also be used as a surface applied sealer to bricks! See our Product Data Sheet on our FAQs page for details!

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• Jan 20, 2014

  Rising Damp and Salt Attack - free PDF

  We have recommended this publication on our blog previously: Salt Attack and Rising Damp - A Guide to Salt Damp in Historic and Older Buildings. Salt attack is as destructive to masonry as termites are to timber, and is prone to occur on any building site in Australia due to our soils and extreme weather patterns. As salt is dissolved by water and absorbed by masonry, the water evaporates, leaving behind more and more salt with each wet cycle. Salt crystallises to expand at extraordinary pressure   (> 200MPa) to easily turn stone, bricks and mortar to dust. As outlined...

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• Mar 01, 2013

  Efflock to prevent rising damp and salt attack in buildings

  Photograph showing rising damp and subsequent salt attack below DPC level. Rising damp is destructive for buildings. It is well understood that damp very quickly will create rot in structural timbers such as bearers and joists, and therefore a DPC (damp proof course) is provided to prevent rising damp. A modern DPC is typically a black embossed polythene roll that is laid out directly beneath ant-capping, or just below finished ground floor level. Polyethelene underlay (black or orange plastic) serves the same purpose for slab on ground construction. What is not usually considered, is that rising damp can also have destructive consequences...

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