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Poles, from which these buildings get their name, are natural shaped or round wooden timbers 4 to 12 inches (100 to 300 mm) in diameter. [4] The structural frame of a pole building is made of tree trunks, utility poles, engineered lumber or chemically pressure-treated squared timbers which may be buried in the ground or anchored to a concrete slab.
The term ″roundpole fence" is somewhat misleading, as the rails between the pairs of uprights are usually split spruce logs. However, the upright poles are always round, young spruce trees with a diameter of 5 to 7 cm. For the diagonals, larger trees with a diameter up to 20 cm were split into four or eight rails of suitable dimensions.
Stella-Jones Inc. (TSX: SJ) is a Canadian manufacturer of pressure-treated wood products, based in Montreal, Quebec. As of 2013 [update] , the company is estimated to hold a 40% share of the North American wood railway tie market and 30% of the wood poles market.
Despite the preservatives, wood poles decay and have a life of approximately 25 to 50 years depending on climate and soil conditions, therefore requiring regular inspection and remedial preservative treatments. [5] [6] [7] Woodpecker damage to wood poles is the most significant cause of pole deterioration in the U.S. [8]
Security maintenance for men working on wooden poles lines. The Polux technology was developed in the early 90s by Professor Jean-Luc Sandoz, following on from the Sylvatest, at the initial request of EDF, which had the dual problem of the safety and lifespan of their poles. [5]
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