Wood is at the same time a combustible and fire-safe material. The required fire resistance of wood structures can be achieved by adding to the size of the stru

Wood is at the same time a combustible and fire-safe material. The required fire resistance of wood structures can be achieved by adding to the size of the structure, adding a protective cladding, using a non-combustible insulation material, or by improving the fire resistance of the wood structure with a fire-retardant treatment.