Examination for Architects in Canada (ExAC) Section 3 Practice Exam

Using semi-rigid insulation between joists is a recommended practice for fire block installation at floor/wall junctions because it effectively helps to reduce the passage of smoke and flames between floors. Semi-rigid insulation can fill the gaps tightly and create a barrier that minimizes air movement, which is critical since air can facilitate the spread of fire. This method not only provides thermal insulation but also contributes to maintaining the integrity of the fire-rated separation required at these junctions. Implementing this practice is essential in adhering to building codes and fire safety regulations, which aim to protect inhabitants and minimize property damage during a fire event.