Basic facts about building materials

• May 14, 2013

  Dulux technical notes: Another reason why Efflock is ideal for use in render.

  If efflorescence begins to occur on any part of a building, it is pretty much impossible to stop. Aside from balconies and tiling, efflorescence is a common sight excreting from rendered walls on many buildings in Sydney. By having Efflock in render, efflorescence will never occur, plus the render will be hydrophobic, therefore resisting rising salt damp, lateral damp and falling damp that can affect paint finishes. It is also a common sight to see paint blistering from render as a result of moisture that has entered a porous wall, pushing the paint coating off the wall. This is known...

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• Apr 25, 2013

  Recommended Reading: Salt Attack & Rising Damp in Buildings

  This publication is a great reference for builders and for anyone considering building or renovating - particularly for understanding rising damp in older houses. Salt can be an incredibly destructive compound, and understanding how salt damp behaves is the first step in designing a solution to control and prevent salt attack. Efflock is an ideal product to prevent the transport of salt throughout masonry. Efflock is excellent for use in new construction to prevent efflorescence and damp problems in tiled patios and wet areas, but can be used in many different applications such as render and brick mortar. It can sometimes however,...

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• Mar 01, 2013

  Efflock to prevent rising damp

  Photograph showing rising damp and subsequent salt attack below DPC level. Rising damp is a destructive phenomenon in buildings. It is common knowledge 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 such damage. 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. In the past, DPCs have been made of lead, slate, malthoid, and sometimes special bricks. What is not usually considered, is that rising damp can...

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• Feb 22, 2013

  Some facts about everyday building materials you may not know.

  It was pointed out to me yesterday, that to date, my blogs are written in a way that assumes some prior technical knowledge about building. Considerable interest about Efflock is also coming from home owners, 'Do-It-Yourselfers', or from people who have seen the product and would like their builder to use Efflock in their building project. So here are some basics: Many people assume that concrete is waterproof. It makes sense right? You see concrete on bridges, footpaths, driveways and balconies everywhere, so surely water doesn't affect it?? The reality is that even concrete of the highest quality contains small micro cracks...

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