Moisture damage and unhealthy buildings are a permanently present problem. However there is no reason why people should suffer illness due to poor indoor air quality. Nowadays there is an excellent fund of knowledge about unhealthy buildings, and the problems can often be solved without the need to evacuate residents or to empty an entire workplace. This is the view of the Carl Bro company Sycon Barab, a well-known environmental consultancy which since the mid-1980s has offered expertise on the indoor environment and associated damage to buildings.  "Buildings are always subject to some damage or other. Certain things cause health problems, others don't. What is important in making premises healthy is to find precisely those faults that give rise to health problems", says the company's Managing Director, Erik Winqvist."So as to quickly find the reasons and take the necessary measures it's important to have a good knowledge of construction techniques and a well-defined investigation strategy", stresses Erik Winqvist.