Mitsubishi Real Estate (Tokyo) completed building 10 stories rental condominium building in Sendai, Japan. This is the first high rise condo with CLT floor. By using CLT, building time is shortened by three months, as ITTO reported.
In ten stories building, CLT is used as floor for fourth to tenth floor and also part of bearing wall of first and fifth floor. Some posts are one hour and two hour fire proof.
CLT floor is wrapped with fire proof film but Mitsubishi Estate intentionally used wood in many places and some are exposed. Actually some rooms with wooden interior is classified as premium grade and rental is higher than the others. It made survey through potential users and they are willing to pay 5% premium for wood used rooms.