Understanding Timber Preservation, a guide to timber and its preservative treatment against biological degradation.
KHA VHA RENGE BALAGA/THANDA DZO ?ODZWAHO MUSHONGA DZO MAKIWAHO/TALIWA NGONA
REKA FELA DIKOTA TŠE DI ŠOMILWEGO TŠA GO NETEFATŠWA TŠEO DI NAGO LE MASWAO AO A NEPAGETŠEGO
THENGA KUPHELA AMAPHOLI EZINGODOAQINISEKISIWE FUTHI AQUKETHE IZIMPAWU EZIFANELE
There are two regulations in South Africa that apply to wood preservation. Both these regulations refer to compliance of SANS 10005, and in order for the reader, end-user, specifier, regulating authority etc. to fully understand the interpretation or intent of each regulation, one needs to read it in context with the relevant clauses given in SANS 10005, The preservative treatment of timber. SANS 10005 (previously SABS 05) is the code of practice that was developed many years ago as a guidance document on all matters pertaining to wood preservation, i.e. wood preservative types, processes, methods, treatment requirements, hazard classifications, reference to the relevant product specifications, handling precautions etc. SANS 10005 is commonly referred to by industry as “the bible” of wood preservation…
THENGA KUPHELA IIPALI ZAMAPLANGA EZIQINISEKISIWEYO EZINEEMPAWU EZICHANEKILEYO
Pressure Treatment of Wood information on the Preservatives used for pressure treatment of wood guidance note and regulations
How to plant a pole – guidance note The process of proper preservative treatment of timber requires for the preservative to be deeply impregnated into the permeable or treatable sapwood, resulting in a deep envelope of preservative treatment around the central and inner impermeable or untreatable heartwood. It is preferable that timber is purchased in the size and shape in which you intend to use it.
Preservative treated wood – the sutainable choice. Wood offers a simple way to reduce the CO2 emissions and carbon storage effect.
Building a wooden deck is a very popular project among DIYers, so here’s a deck to inspire and challenge you.
Serve drinks around the pool with a poolside bar made from treated timber. The bar we are making has a roof section but you can choose to leave this out. See the photos of both kinds to see which is most suitable for you.
With our ideal weather, why not put up a jungle gym in your garden for the children. This jungle gym is simple to construct and because of its rustic look, it won’t make the garden look messy, but will enhance it. But this doesn’t compare with how much the kids will love it.
Finding storage space for all those things that don’t quite fit in the garage is easy when you have a garden shed. When you build one with durable pressure treated SA Pine you can count on some long-lasting protection for all those items you need to stash away and secure. This plan is adaptable to meet your storage needs. Three flooring options are specified and an optional ramp can be built to help get a wheelbarrow or mower in or out more easily. Inside, the 76 x 38mm stud wall will simplify the installation of shelves or hardware from which to hang tools.
It seems that you always need an extra parking space at home, and carports are the ideal solution for a tight budget or a tight space. Here is a wooden design, that can double up as a structure for climbing plants, but is attractive enough to be left as is, too.
Timber Treatment & the Law In South Africa there are two regulations applicable to preservative-treated timber.
BUY ONLY CERTIFIED TREATED TIMBER POLES THAT CARRY THE CORRECT MARKINGS
Treated wooden poles (excluding utility poles) can be produced under either SANS 457 or SANS 1288.
CCA Preservative Treated Wood SAWPA SAFETY PRECAUTIONS AND WARNINGS FOR USE, HANDLING AND DISPOSAL
CCA (Copper-Chrome-Arsenate) is an industrial wood preservative and is widely used in South Africa. When applied to timber it enhances the durability by preserving it against biological deterioration such as insect attack (wood borer and termites) and fungal decay (rot). In South Africa only CCA Type C is allowed to be used as it is internationally recognised as the most stable and effective type, i.e. apart from its efficacy as a timber preservative, it successfully fixes to the lignocellulose material in wood. CCA may only be applied by industrial high pressure process from where the familiar term “pressure treated wood” hails from.
South African Standards SANS 1288, SANS 457-2/3 and SANS 753/4 specify the marking requirements for any preservative treated product that claims to comply with the respective Standards. The following information must be contained in the marking: a unique plant identifier or trademark, product certification mark, SANS standard designation, a hazard class, date or year of manufacture of 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.