Safety Management
Pursuit of Safety and Security
Thorough Process Inspections
To provide housing where people can live for a long time with peace of mind, the MIRARTH HOLDINGS Group conducts stringent checks at the construction stage. We put great effort into ensuring thorough quality management, with our staff regularly visiting construction sites to inspect building structures and conduct checks within the construction process of hidden areas, foundations, and finishing.
Obtaining Housing Performance Evaluation Reports
Takara Leben obtains housing performance evaluation reports from third parties designated by the Minister of Land, Infrastructure, Transport, and Tourism to provide customers with greater peace of mind regarding their residences. To obtain these reports, we acquire performance evaluations at each stage of design on topics including earthquake- and fire-resistance, degradation resistance, energy consumption, and ease of maintenance. Five or more on-site inspections are carried out during construction, and a rigorous performance evaluation must be passed at the time of completion.
Earthquake- and Fire-Resistant Structures
Earthquake-resistant construction
In the construction of condominiums, we improve earthquake resistance by adopting the most appropriate construction method for the characteristics of the subsoil and its capacity to support the foundation. This includes the use of pile foundations, where strong piles are directly driven into the ground to the supporting layer, spread footing foundations, which provide support directly using firm subsoil, and seismic isolators, which disperse earthquake energy and dampen extreme, long-period building swaying.
In the construction of detached housing, we adopt wood-frame construction, which affords a high degree of design freedom and flexibility when adding to or renovating a structure in the future, together with a panel construction method that offers high durability and safety as well as good earthquake and fire resistance. We also employ as a standard feature a mat foundation method whereby a steel-reinforced concrete slab is laid underneath the entire wood floor to support the building, establishing a strong foundation using a high-earthquake-resistance and high-durability construction method.
Exceptional Fire-Resistant Structures and Soundproofing Performance
We use highly disaster-resistant materials in the construction of condominiums. Standards for fire resistance and sound insulation performance are set by law, and the concrete thickness of the unit boundary walls (walls separating dwelling units from each other), for which fire resistance and sound insulation performance are strongly required, is secured at approximately 180mm. In addition, fire and sound insulation measures are adopted for the piping in the pipe space facing the living room.
Selection of optimal structure and equipment
Not only the interior design, such as floors, doors, and plumbing, but also the interior structure of the building, such as ceilings and piping sections in pipe spaces, is customized for each property to suit the land and the customers who live there, combining the most suitable structure and equipment.
Accident Prevention Measures
The MIRARTH HOLDINGS Group is working to prevent occupational accidents at workplaces and construction sites.
Health and Safety Patrols
Leben Home Build, which is responsible for condominium construction and other work, is working to achieve safer construction sites through safety and health patrols at least once a month. We check the implementation status of safety and health management, such as monthly and daily inspections and the assignment of qualified personnel, as well as raise safety awareness through safety instructions and other measures.
In addition, once a quarter, a joint special patrol is conducted by top management and partner companies. In July 2022, in conjunction with National Safety Week*, we visited four construction sites with representatives from eight partner companies to check actual construction sites and work conditions from the perspectives of daily management, on-site maintenance, accident prevention, fall prevention, and machine accident prevention, and to encourage the implementation of measures.
- * National Safety Week
An initiative of the Ministry of Health, Labor, and Welfare and the Japan Industrial Safety and Health Association to promote voluntary industrial accident prevention activities, raise safety awareness, and establish safety activities in the industrial sector.
Safety Conferences
The Group holds safety conventions to further promote safety and health management and to increase the knowledge and awareness of safety and health among construction site workers.
Leben Home Build held a safety convention in July 2022, bringing together all directors, employees, and subcontractors in conjunction with National Safety Week. Furthermore, during National Safety Week, the company's offices and worksites work closely together to strengthen safety and health management activities, including measures to prevent the three major types of accidents (crashes and falls, construction machinery and crane accidents, and collapse and collapse accidents).
In addition, Leben Community held a safety convention in October 2022 with the participation of 42 partner companies and presented awards to five partner companies that were particularly outstanding in their daily safety measures and six employees who worked with a high level of safety awareness.
Safety Instruction for Subcontractors
Leben Community, which handles repair work on condominiums, works with partner contractors to carry out work safely and with minimal impact on residents’ lives. When a large-scale repair project is approved at a condominium management association meeting, the company’s repair planning staff, construction supervisors, and members of a managers’ committee consisting of key construction workers gather at the site to check and review in detail the scaffolding, placement of temporary facilities (offices, restrooms, security doors, etc.), and safety measures before work begins.
