The method
Before using the result
- Use the denominator appropriate to this tool: gross wall, floor or gross building area. This is a geometric ratio, not daylight performance or statutory compliance.
Worked examples
These original training examples illustrate the method for Architect Registration Examination (ARE) - United States. Use the matching “Load example” button above to explore a variation; example values are not equipment settings or prescribed criteria.
1. Worked example
Compare glazing proportions by elevation and calculate a correctly area-weighted whole-building ratio. Do not average elevation percentages without accounting for their wall areas.
Supplied glazing by elevation
| Location | Gross wall area (m²) | Glazing area (m²) |
|---|---|---|
| South elevation | 100 | 30 |
| North elevation | 100 | 20 |
- Combined ratio = Σnumerator / Σdenominator = 50 / 200 × 100%.
- Combined area ratio: 25 %
- Total denominator area: 200 m²
- Total numerator area: 50 m²
2. Comparison example
Compare a different supplied condition using the same method. For Archi Conquer, the important check is that the input meaning, units and method assumptions still match the problem.
Supplied glazing by elevation
| Location | Gross wall area (m²) | Glazing area (m²) |
|---|---|---|
| East elevation | 120 | 24 |
| West elevation | 80 | 16 |
- Combined ratio = Σnumerator / Σdenominator = 40 / 200 × 100%.
- Combined area ratio: 20 %
- Total denominator area: 200 m²
- Total numerator area: 40 m²
Check your understanding
1. Which relationship is used?
Area ratio = numerator area / gross denominator area × 100; combined ratio uses summed areas.
2. Which assumption should you check first?
Use the denominator appropriate to this tool: gross wall, floor or gross building area. This is a geometric ratio, not daylight performance or statutory compliance.
3. How should you verify a different unit system?
Convert every input to the displayed calculation units first. Equivalent physical inputs must give equivalent results; a unit label alone does not convert a number.
Continue with the matching exam topic
This tool connects to Architect Registration Examination (ARE) - United States free practice. Work through a question independently, then use the calculation steps to identify where your method differs. The tool stays free whether or not you choose paid preparation.