20 November, 2019
Treated timber: greener than you think
timber is greener than you think.
is the most environmentally friendly
material available for construction and
infrastructure, as well as the best
performer for utility poles.
aspect of sustainable forestry and timber
treatment, from planting a tree to proper
timber preservation - and finally the usage
of timber - is environmentally friendly.
This is one of the reasons we're so proud to
work in our industry," said Bertus.
utility poles, wood is the best available
product. Concrete and steel have been used
for electrification projects in some African
countries but have not performed as well as
timber. In one example, the Kenyan
authorities turned back to wooden utility
poles after experiencing limited service
life with concrete and steel.
trees sequester carbon while they grow,
converting it to oxygen. Tropical tree
plantations of pine and eucalyptus, for
example, are known to sequester an average
of 10 tons of carbon per hectare per
year. After a certain age this efficiency is
reduced, which is why harvesting mature
trees and planting younger, carbon-guzzling
saplings makes sense.
cellular structure of wood gives it thermal
insulation that has been measured at 15
times better than concrete, 400 times better
than steel and 1 770 times better than
a place for all products - including
concrete and steel - but wood is easier to
work with and has the most economic benefit,
as it adds the most value to communities,
through its value chain. Homes built from
timber are warmer and better insulated -
which means you're using less electricity to
heat your home," said Bertus.
you buy wood, you're buying character."
wooden house can have a lifetime of up to
150 years with a proper approach to building
according to ArchiLine Ltd, an
industry-leading European company which has
been building wooden houses internationally
for many years
needs to be treated because it is used in
infrastructure projects and needs to last.
The value of wood is increased by CCA
people have criticised CCA as
environmentally unfriendly. What they miss
is that the preservative prolongs the life
of the timber, tying up carbon for the
duration of the timber's service life. This
is one of the functions that make it
is fixated to the timber, so its chemicals
do not leach into the environment. Instead
of killing insects, it repels them and
deters them from using the timber as a food
concentrations of the chemicals in CCA are
very low. You could see it as providing the
timber with a new immune system, similar to
the one it had when it was still growing.
Trees have natural defence mechanisms to
repel insects, and diseases; when preserved
using CCA, timber has a static immune
system, performing a similar function."
is one of the rare industries that creates a
material and renewable source of wealth,
rather than extracting and using up
resources in the way mining does. As a tree
grows, it becomes more and more valuable,
and people are willing to pay more for it.
an asset that sustainably grows the economy.
Trees create wealth where none previously
existed, so money really does grow on trees.
"As many generations could tell you,
wood is a proven product," concluded Bertus.
Source: Dolphin Bay Chemicals