Indoor air expert: Indoor air problems in houses are largely caused by poor instructions
According to indoor air researcher Juhani Pirinen, the current building regulations make it difficult to construct buildings that will not suffer from indoor air problems within a certain time frame without maintenance and repair.There are various reasons behind indoor air problems. The Association of Finnish Local and Regional Authorities has studied municipal buildings and generally speaking, it could be said that one third of the problems are caused by design errors, one third by construction faults and one third by the use of the buildings. According to Juhani Pirinen, head of a