Joist_exotic wood 45x70x1050

The exotic wood retains its durability due to the large amount of stored oils. These contained substances partially seep to the surface during the first phase of exposure to weather conditions and can be washed away by rain. Leached tannins can cause colour stains on building materials - plaster, brick, stone. In this connection, other structural components should be protected accordingly
/plaster, tiles.../, as any substance contained can only be removed with great difficulty or not at all. Timber placed on deckings or balconies where this contact may occur must be used in a way so that the water running off the timber is drained off through gutters and rain gutters.
Random growth occurs alternately. This must be accepted as it is part of the natural characteristics of wood. The joists must be immediately mounted on the pre-prepared base for the future decking as soon as they are released from the transport straps. The underconstruction made of timber joists must be modified so that it can withstand deformation and does not lift when swelling and shrinking during the year.