Seismic ceiling substrate OS sealing
Ministry of Land, Infrastructure, Transport and Tourism Notice "Specific Ceiling" Correspondence 【Seismic Ceiling Substructure Materials】
This is the "OS Sealing" reinforcement measure for ceiling materials to prevent damage from falling during a major earthquake. We have newly introduced a grade that can be considered even for "specific ceilings" through a method that improves the ceiling surface load capacity using assist bars. [Updated 2021/07/01] A catalog for the semi-structured ceiling substrate series "OS Sealing SS Type" has been added. - OJ type (Type 19) up to approximately 20 kg/m² - ND type (Type 25) up to approximately 35 kg/m² For details, please check the catalog page. The catalog also includes a data collection related to evaluation tests based on the Ministry of Land, Infrastructure, Transport and Tourism's technical standards explanation.
