Journal of Korean Institute of Architectural Sustainable Environment and Building SystemsISSN:1976-6483(Print) 2586-0666(Online)한국건축친환경설비학회

Negative pressure wards are dangerous because they do not have high airtightness, which can lead to the spread of contaminated air if negative pressure control fails. Therefore, this modular negative pressure ward applies the dry construction method applied to the internal cabin joints of ships where wall gaps can be sealed to prevent air movement or leakage through walls, floors, and ceilings to meet the facility standards of negative pressure isolation areas. The airtightness performance evaluation of this method was conducted and the results were compared with the existing experimental values to seek improvement measures. Currently, the design standards for negative pressure wards comprehensively mention airtightness in the architectural planning section, but do not provide clear performance standards. It is believed that this could be proposed through social consensus in the future when additional experimental results of more diverse negative pressure wards are collected. In particular, the results of this study were conducted only in the infill condition of the negative pressure ward, and it is judged that if PC modular is applied in the future or additional finishing treatments are performed on the front and back during construction in the ward, the settlement caused by the left and right sides and the top and bottom of the modular negative pressure ward can be further improved.