Roof Wind Pressure Zones Calculator
According to AS/NZS1170.2:2021 | For Rectangular Buildings with Roof Pitch ≤ 10°
Site Configuration
Centers map on building for zone overlay.
Building Dimensions
m
m
m
Drag to align zones with roof. Drag map to center.
Dimension 'a': -
Dimension 'a/2': -
Aerial Zone Layout
Initializing Mapping Engine...
API Key required. Please insert your Google Maps API key in the code block to enable aerial mapping.
Internal (1)
Intermediate (2)
Edge (3)
Corner (4)
Local Pressure Factor (Kl)
1: 1.0
2: 1.5
3: 2.0
4: 3.0
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.