SOLARREADY
The Roof Zones and PV Capacity Limits Calculator
By Gamcorp
Enter the building parameters below to calculate both the wind pressure zone layout (AS/NZS 1170.2:2021) and the maximum allowable PV system sizes based on wind and seismic structural risk tiers.
Awaiting building parameters
Enter the site location and dimensions above to view the analysis.
Roof Wind Pressure Zones
Zone Layout Diagram
Dimension 'a': -
Internal (1)
Intermediate (2)
Edge (3)
Corner (4)
| Zone | Area (m²) | % of Roof |
|---|---|---|
| Total Roof Area | - | - |
| Internal (1) | - | - |
| Intermediate (2) | - | - |
| Edge (3) | - | - |
| Corner (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 (Zones 1 & 2)
-- kW
PV Capacity & Risk Limits
Physical Roof Capacity
Maximum array size based on overall roof area.
-- kW
| Structural Risk Tier | Typical PV (15 kg/m²) |
Lightweight PV (5 kg/m²) |
|---|---|---|
|
Low Risk
Standard install limits.
|
-- | -- |
|
Medium Risk
Assessment recommended.
|
-- | -- |
|
High Risk
Detailed Assessment required.
|
-- | -- |
Regional Snow Risk
--
--
Disclaimer: This calculator provides preliminary boundaries to assist Solar Installers and Building Owners in determining the likely structural risk category of a proposed array and mapping out roof wind zones (AS/NZS 1170.2:2021). It does not replace a site-specific engineering assessment or Solar Ready Certification.