Abstract
In 2015, the Ministry of the Environment in Finland renewed the legislation and the National Building Code of Finland. It released completely new legislation concerning repair design. This was due to widely known issues relating to the indoor air quality of private and public buildings. In the autumn of 2019, the Ministry of the Environment in Finland published a guide concerning the repairs of moisture and microbial damage. It is available in Finnish and Swedish. This guide is a follow-up of the Environmental Guide “Building Moisture and Indoor Air Quality Assessment”, published 2016. It completes the series of guides for the execution of a project repairing indoor air quality issues, from a condition assessment to the completion of repairs and the implementation of the building. These guides lead through common practices and how these issues shall be dealt with in Finland.
Highlights
In the Nordic Countries and in North America, indoor air problems are often related to moisture and mould induced damage in structures and buildings /1, 2, 3, 4/
A significant share of moisture and microbial damage require large-scale repairs to be performed in the building
The repair designer must be able to consider, whether the repair work performed in separate spaces and building components, e.g. in Figure 3, support one another and execute the expectations for the entire building
Summary
In the Nordic Countries and in North America, indoor air problems are often related to moisture and mould induced damage in structures and buildings /1, 2, 3, 4/. First national guides to assess and design repair work on moisture damage were published in the late 1990’s. The designer of the repair work shall determine the construction method and the moisture performance of the existing building /10/. The Guide on Renovation and Repair of Buildings with Moisture and Microbial Damage is based on the legislation mentioned above It is an independent followup of the Environment Guide on Building Moisture and Indoor Air Quality Assessment published by the Finnish Ministry of the Environment in 2016 /11/. The person nominated as the responsible person for moisture control in a construction project plays a very important role during the whole process This method has been taken into use quite widely, especially in the construction of new buildings. The inspection includes issues relating to building physics, and the contents of the inspection depend on the difficulty class of the project /15/
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