The depth of the fence posts into the ground must be at least one foot below the frost level for your region. As well, one third of the total length of the post should be in the ground. This means that in mild regions the posts will be well below frost simply because of their length. In regions w...
Concrete will allow water or water vapour to move through it quite easily, so any wood in contact with concrete must either be pressure treated wood, or you should have a plastic separator between the wood and the concrete. A simple slip of polyethylene plastic is all it takes to prevent rot at t...
When we are building new structures, we need to think about avoiding future rot problems. When we are renovating or repairing existing structures we are often faced with dealing with existing rot problems.
In new construction we need to understand that all wood preservative systems are not equal...
Whenever you cut into a piece of pressure treated wood, you should treat the cut end with a chemical called End Cut Treatment. This insures the full anti-rot protection of the piece of wood as it came from the factory.
Maximum preservative value will be obtained by applying end cut treatment lib...
On January 1, 2004 the wood industry throughout North America has ceased to produce pressure treated wood treated with CCA (chrome, copper and arsenic) for residential use, replacing this chemical with what is generically called 'non-arsenic' treatments, primarily ACQ and Copper Azole (CA), both ...
revised Spring 2009
WEATHER
Follow this link for details on critical weather specifications for applying water repellents to outdoor wood.
MOISTURE PROOFING
Although pressure treated wood, cedar and redwood will not rapidly develop rot, any wood left totally unprotected outdoors will grey wit...
revised November 2004
Viewers are constantly asking me if there are alternatives to using pressure treated wood. In 2004 the wood treating companies 'voluntarily' withdrew the standard CCA pressure treated wood from the residential market. Ecological groups had lobbied long and hard to ban this...
This entry has been updated in 2013 and you may want to jump to the last paragraph to see the positive current state of Pressure Treated Wood.
Is pressure treated wood safe or not? Is the wood used to build my deck a few years ago now banned? There is a lot of confusion about pressure treated wo...
Have we really moved to a new generation of Pressure Treated Wood?
With the introduction of MicroPro treated wood to the Canadian market in the spring of 2013, some are saying that we have a game change in exteriour wood and building decks. It has taken several years to get this technology adap...
Decks need to be built strong enough to not fall down or have deck boards break for lack of support. In addition, although they do not need to be as solid as a floor in the house, they should not bounce like a trampoline. The structures of most decks in Canada are built with pressure treated wood...
