Konfektionerat byggmaterial ur ett ekonomiskt helhetsperspektiv

Sammanfattning: Problem: In the construction industry there are increasingly higher requirements to reduce the environmental impact and production costs as well as improve the work environment and construction logistics. To meet these new requirements, new production methods are needed. Studies have shown, ready-to-use construction materials can be used in order to improve the environmental impact and the work environment. However, its effect on the construction logistics and production cost is still uncertain. Purpose: The purpose of this master thesis is to investigate whether the usage of ready-to-use construction materials is economically profitable, what advantages and disadvantages there are, when it is appropriate to use and how it can be most efficient. Method: In order to meet the purpose of this master thesis, a literature study, an interview study and a case study were conducted. The literature study aimed to create a context and knowledge about the subject by processing previous research and theories. To also include the industry’s perspective of the subject and to applicate it in practise, an interview and case study was conducted. Furthermore, a risk analysis was considered necessary to consider the risks and consequences with ready-to-use materials. Conclusion: In summary, there are potential economic benefits with ready-to-use construction materials, since several cost items reduces or eliminates by ordering pre-adapted material. However, other cost items may increase, but not to the same extent as the reduced costs. There are also risks with ready-to-use construction materials which can lead to additional costs for the project. If they occur or not and how dire the consequences vary and depend on the conditions of the individual project. Hence, it is up to each project to determine whether the potential profitability of ready-to-use construction material is greater than the risks. Furthermore, ready-to-use construction materials are not suitable for all housing projects. Large projects with a high degree of repetition of e.g. room heights are more suitable than less irregular projects. Since all housing projects are unique, a separate assessment of the advantages and disadvantages should be made for the specific case. The profitability of ready-to-use construction materials is also affected by good construction logistics. By receiving pre-adapted material at the right time and place to the construction site, saving site storage and increases the production flow.