A practical selection framework should consider five dimensions:
1. Fire safety requirements
- Strict codes → aluminum required
2. Project lifespan
- Long-term (>10 years) → aluminum
- Short-term (<5 years) → paper acceptable
3. Environmental conditions
- High humidity → aluminum
- Dry indoor → either option
4. Structural span
- Large panels → aluminum
- Small modular systems → paper
5. Budget constraints
- High budget → aluminum
- Cost-sensitive → paper
Final engineering rule
- Aluminum = safety + durability + precision
- Paper = cost + flexibility + temporary use
The correct choice is not about material superiority, but engineering requirement matching.
