6. Summary Table: Key Aspects in Roof System Structural Design

Try these first

1. 1.

   What type of loads do flat roofs carry?

   Hint

   Think about the activities happening on the roof.

2. 2.

   Which type of roof typically has lower imposed loads?

   Hint

   Consider the maintenance activities on sloping vs flat roofs.

3. 3.

   What is the typical imposed load for flat roofs?

   • 1.5-3.0 kN/m²
   • 0.75-1.5 kN/m²
   • 2.0-3.0 kN/m²

   Hint

   Consider the types of activities happening on flat roofs.

4. 4.

   True or False: Wind loads on sloped roofs are generally uniform.

   • True
   • False

   Hint

   Think about how the angle of the roof affects wind interaction.

5. 5.

   Design a sloping roof truss to support a maximum wind load of 2.5 kN/m². Identify critical factors in your design and safety margin.

   Hint

   Start with determining the truss type that fits your span and load before calculating member sizes.

6. 6.

   Create a connection detail for a useful application involving a bolted connection in a roof truss considering both shear and tension forces.

   Hint

   Remember to factor in potential shear versus tension forces at each connection point.