For over 100 years toxic wood preservatives have been the first and only line of defence against these decaying organisms. This still fails over time as it simply delays the inevitable.
However, patented non-toxic Polesaver sleeves provide a more effective solution to this problem. They create a tough dual layer barrier that keeps the moisture, oxygen and decaying organisms that are necessary for wood rot and decay, out of the pole. At the same time they prevent moisture flow between the pole and the soil that over time leads to leaching and a loss of preservative from the pole.What’s going on in the ground?
Over time the ground line section of the pole is subject to relentless wetting and drying cycles as the seasons change. This leaches the preservative from the wood in to the soil. Combined with oxidation of the preservative, this process leads to a reduction in the effectiveness of the preservative until the point is reached where the soil borne organisms start to attack and decay the wood.
At first this attack is difficult to detect and on inspection the pole can appear to be in perfect condition. Yet initial decay in the outer 15% of the pole can shockingly reduce the poles strength by up to 40%; enough for it to break off in a strong wind.