Prior to the era of impregnated timber, the heartwood of two boreal conifers, Scots pine (Pinus sylvestris L.) and Siberian larch (Larix sibirica Ledeb.), was used in construc-tions prone to …
There is large variation in wood characteristics, which contradicts the expectations of the consumers for the uniform quality. For example in Scots pine (Pinus sylvestris L.), heartwood timber is more …
Wooden roof shingles were made from pine (Pinus sylvestris L.) and spruce (Picea abies (L.) Karst.). The natural durability of those wood species is classified as class 4 (non-durable). To …
Heartwood is dead tissue rich of extractives. Those extractives, especially stilbenes pinosylvin and its’ monomethylether, protect products made of heartwood against decay. Individual trees differ strongly from each other in …
Wood decay tests are important for testing different types of wood protection systems. Field tests in Scandinavian climate takes 2-3 years to failure for pine sapwood. Accelerated lab tests have …
