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This Guidance Note addresses the importance of the use of properly preservative treated timber in the construction of substructures for timber decks and its compliance with the requirements as stipulated in the Building Regulations and relevant SANS Standards.
Carpenter bees are species in the genus Xylocopa that include some 500 bees and are found on every continent except Antarctica. They resemble bumblebees as they are similar in size, i.e. 12-25 mm long, but they are not bumblebees. They are mainly black in colour but can range from greenish-black to blueish black or purple in colour, with white or yellow markings on the top of their bodies.
Disposal of treated wood guidance note. Treated wood waste includes treated wood debris from construction activities and may include trimmings, offcuts, scrap and sawdust. Treated wood waste also includes demolition products that have been permanently removed from use, e.g. decks, fences, docks and vineyard poles.
An important consideration when building with timber is predicting how long the structure will last. Whilst insects, decay or rotting organisms and marine borers can all attack wood, some timber species have the ability to resist attack better than others. The natural durability of a species to resist attack by wood destroying organisms is an indication of how long that timber will last when it is exposed to a defined set of exposure conditions without any additional preservative protection. The natural durability of timber species varies, even so within the wood from the same species of tree, depending on whether its sapwood or heartwood.