Permeability of White Spruce Wet Stored in Labrador

Poles of white spruce trees, Picea glauca (Moench) Voss., freshly cut in Goose Bay, Labrador, were subjected for 12 weeks during July, August and September of 1971 to ponding, sprinkling, or outdoor storing, each with and without bark. In a pressure impregnation with creosote after outdoor seasoning for a further 13 months by far the best results were obtained on poles ponded without bark. Mean depth of penetration on these poles was 1.42 inches with a standard deviation of 0.32 inch and was nearly equal to the sapwood thickness. Such ponding would constitute a suitable preparatory method for commercial preservative treatment of spruce roundwood.

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