R. Alén, S.Kolari
Bibliographic info:
Healthy Buildings 2003 - Proceedings 7th International Conference (7th-11th December 2003) - National University of Singapore - Vol. 3, pp 514-519, 11 Fig., 1 Tab., 5 Ref.

It is showed that side grinder produce significantly metal sheet dust onto the inner surfaces ofventilation ducts. New, cleaner installation method was developed in which shears are used asinstallation tools. The aim of this study was to carry out ventilation system installations atthree building sites with clean installation method and to collect information about operatingcharacteristics of the shears by interviewing assembly workers.The results of dust measurements showed that the average amount of dust on the inner surfacesof supply air ducts was very low in all three buildings. Assembly workers consideredthat shears were applicable tools for installations and they were willing to use seam metalshear also in the future. By changing the working habits and tools, cleaner ventilation systemscan be implemented and safer working environment provided. As a result of this study installationmanual for clean ventilation system was published. The installation manual gives instructionshow to implement clean ventilation systems in practice.