Engineering Within Limits
Custom air handling solutions for a constrained retrofit + new build integration
Colorado State University’s Clark Building project combined renovation of an existing structure with a new multi-story addition—while maintaining structural integrity and navigating strict weight limitations.
The existing building presented multiple constraints:
- Limited structural load capacity
- Restricted mechanical space and routing paths
- Integration with legacy systems that could not be fully replaced
- Phased construction within an active campus environment
Standard air handling equipment would have exceeded allowable weight limits and dimensional constraints, making a traditional approach unworkable.
APC worked alongside the engineering and construction team to develop custom aluminum air handling units designed specifically for the project’s structural and spatial constraints.
The solution focused on:
- Lightweight construction to meet strict load requirements
- Custom sizing and sectionalization to navigate tight access and installation paths
- Integration with existing infrastructure while supporting new system performance standards
- Coordination across trades to align with phased construction sequencing
By engineering the solution around the building—not forcing the building to accommodate standard equipment—the team was able to deliver performance without compromise.
- Project Type Renovation + New Construction Integration
- Facility Size ~120,000+ SF (new + renovated)
- Material Aluminum construction for reduced structural load
- Installation Strategy Phased + constrained-access install
- System Type Mixed retrofit + new distribution
