CEILING AND WOOD PANELING

Wood carpentry TECHNOSTYLE :
Wood joinery is one of the oldest construction methods, which allowed, above all thanks to the use of trusses, to cover large voids. It was widely used in the past (especially in the daring woodworking of the great Gothic cathedrals) until the 19th century, when wood was gradually replaced by other structural materials such as steel and reinforced concrete.
Woodworking is now experiencing a moment of revaluation: permanent wooden constructions are being built, previously used mainly in homes in wood-rich countries (such as Scandinavia and North America) and in Eastern countries such as China and Japan, spreading again thanks to recent and significant developments in carpentry technology and ecological assessments.
Wood carpentry is still widely used in temporary works (scaffolding, formwork, service trusses, ribs, etc.) Given the good workability of the material, which facilitates the creation of joints, combined with good mechanical resistance.
The woods most used in carpentry are: fir, pine, larch, oak, chestnut, oak.
The most commonly used elements are: beams and uprights (roughly squares, commonly used in temporary works, or squared with sharp edges with a square or rectangular section), planks (a few centimeters thick), slats (square section of a few centimeters). . , laminated beams (formed by overlapping boards integrated with each other).
The advantages of using wood in buildings are related to thermal and acoustic insulation, hygroscopic characteristics and the fact that it is an organic material. Some disadvantages of wood reside in its flammability, in its heterogeneity (which implies a certain variability of the mechanical characteristics) and in its tendency to change over time (for this trend, wood is particularly suitable for use in building works). construction). temporary carpentry). From a mechanical point of view, wood has an excellent strength / weight ratio. The compressive and flexural strengths (along the fibers) are approximately equal and the modulus of elasticity is of the order of 10 GPa.
Building elements and systems
The main construction elements used in wood carpentry for permanent constructions are trusses, floors, roofs, stairs, vertical load-bearing structures, reticular structures for bridges.