Impact of Mass Timber Compartment Fires on Façade Fire Exposure

Abstract This study investigates whether timber surfaces that are initially exposed to fire or partially protected components can lead a more critical exposure on the façade. Five full-scale tests were carried out. Three with square compartment (4.5 × 4.5 m 2 ) and two double-width 9 ). The conducted high load density (1085 MJ/m While first test was out in non-combustible compartment, subsequently increased other tests. measured gas temperature, heat release rate, temperature façade, flame heights along flux velocities façade presented this publication. influence of only impact is investigated help these results. Finally, findings compared results internationally from literature. Additional structural leads an increase temperatures However, there no significant difference height between Another result mass ceiling higher fluxes than wall. Graphical