A large part of building elements is made of steel to a greater or lesser extent. Whether it concerns constructive steel girders or auxiliary steel to keep elements in place, a building without steel is hardly to be expected. The graph on the right shows the index of the steel development.
The share of wood in buildings has been increasing in recent years. Wood is a natural product and therefore supply and demand cannot always be quickly balanced. The graph on the right shows the average index of various wood disturbances such as beams, panel material, etc.
Insulating material is an important building material, more and more insulation and higher-quality insulation are used in construction, so the influence of these cost increases is important for the overall price development. In the graph opposite, the average cost increases of the insulation materials glass wool, rock wool, PIR and EPS are expressed in an index.
Ultimately, energy is an important source for all components in construction, whether it concerns the beacon of masonry or the transport to and from the construction site. The chart opposite shows the oil price index, which is an important indicator of energy costs.
Concrete remains one of the most commonly used materials in construction in the Netherlands, making the concrete price index an important indicator for the development of construction costs. The graph on the right shows the index of the concrete price.
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