A few days back, On April 3, 2025, a section of the roof at a Vancouver, Washington, shopping center collapsed. This unfortunate event occurred after heavy roofing materials were stacked on the roof in preparation for a repair project. Thankfully, no one was injured, but businesses like Total Wine & More and a neighboring Kaiser Permanente office had to close indefinitely.
Key Takeaways for Roofing Professionals:
- Understand Load Capacities: Roofs in moderate climates like Vancouver are not designed to carry heavy concentrated loads. Always assess the load-bearing capacity of a roof before placing materials on it.
- Consult Structural Engineers: When planning to store materials on a roof, especially in large quantities, consult with a structural engineer to ensure the structure can handle the weight.
- Distribute Weight Evenly: If materials must be placed on the roof, ensure they are spread out evenly to prevent concentrated loads that could lead to structural failure.
- Monitor Environmental Factors: Be aware of additional loads from environmental factors such as snow or water accumulation, which can exacerbate the stress on a roof.
Regular Training: Educate your team on the importance of load management and the potential risks associated with overloading roofs.
