Development of safe repair methods for water damaged buildings
Kulmala, I. Antti Souto, and Vesa M?kip??
2000 Lifa Air 2000 Healthy Building
renovation, dust, mould, dehumidification, filtration
Kulmala, I. Antti Souto, and Vesa M?kip??, (2000), Development of safe repair methods for water damaged buildings, Lifa Air 2000 Healthy Building.
Abstract:
Efficient control methods are needed to prevent harmful microbes and other airborne contaminants from spreading to adjacent areas during the renovation of water-damaged buildings. Such methods are important, especially when exposure to microbes can create a severe risk to susceptible people, such as immune-compromised patients. In this study safe repair and drying methods were evaluated during remediation work in a hospital. The work area was sealed and maintained under negative pressure by a recently developed air-handling unit that can clean and dry air. The microbe and dust concentrations were high in the construction area during removal operations, about 10 4 - 10 5 cfu/m 3 and 100 mg/m 3 , respectively. The respective concentrations in the exhaust air of the air-handling unit were < 10 cfu/m 3 and 0.002 mg/m 3 ; therefore, with proper control techniques, very high control