Roof Wind Pressure Zones Calculator
According to AS/NZS1170.2:2021 | For Rectangular Buildings with Roof Pitch ≤ 10°
Building Dimensions
Enter dimensions in metres to calculate wind pressure zones.
m
m
m
Dimension 'a': -
Dimension 'a/2': -
Zone Layout Diagram
Internal (1)
Intermediate (2)
Edge (3)
Corner (4)
Local Pressure Factor (Kl)
1: 1.0
2: 1.5
3: 2.0
4: 3.0
* Reference: AS/NZS 1170.2:2021 Table 5.6
Calculation Results
| Zone | Area (m²) | % of Total Roof |
|---|---|---|
| Total Roof Area | - | - |
| ■ Internal Zone (1) | - | - |
| ■ Intermediate Zone (2) | - | - |
| ■ Edge Zone (3) | - | - |
| ■ Corner Zone (4) | - | - |
| Typical Usable Area (1) + (2) | - | - |
Estimated Solar PV Potential
Based on utilizing the Typical Usable Area (Zones 1 & 2) with typical 500W PV panels (approx. 2.67m² each).
-
Estimated capacity (- panels)
This Roof Zone Area calculator is provided for informational use only. Please consult with an experienced structural engineer to ensure the information provided is applicable to your situation.