Canada Wood Today | The Canada Wood Group

4 Ministerial Approvals Obtained for Non-Residential Floor and Roof Assemblies

Hidehiko Fumoto

By Hidehiko Fumoto

Deputy Director and Manager Technical Services, Canada Wood Japan

March 19, 2015

fumoto2In 2014, COFI conducted series of fire tests to roof and floor assemblies. These tests were part of a Canada Wood FY2014-2015 market access project, where we were working on “Fireproof Testing of PFC Roof & Exterior Emergency Hallway Floor Assemblies for Large Scale Structures”. The emphasis of this project was to add new assembly specifications demanded for non-residential projects; emergency evacuation balconies and flat roofs. COFI and Japan 2×4 Home Builders Association worked collaboratively for planning and conducting the tests, all of which concluded successfully. Based on the results and the performance evaluation reports, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) issued 4 approval certificates dated August 27 and November 13, 2014; a 1-hour fire resistive floor structure and 3 flat roofs as a 30-minute fire resistive structure. The roof structures have various specifications depending on the water resistive finishing materials on the flat exterior surfaces. These new fire resistive assemblies now benefit the builders and designers who have been demanding these floors and roofs that make non-residential projects more feasible. Test plans and results were reported in this blog on February 4, May 7 and June 8, 2014.