What it does
The Solar North Marker indicates true north in relation to your roof model. This ensures shadows and sun azimuth are calculated correctly for accurate solar analysis. Without a North Marker, the software assumes north is pointing up the screen.
Before rotation to North
After rotation to North (when calculating shadows and azimuth)
Why it matters
Correct north orientation is essential for:
Accurate shadow calculations for town planning assessments
Proper solar panel positioning and energy calculations
Evaluating shadow effects on neighbouring properties
Assessing impact on roof fittings and equipment
🧾 Default behaviour
If no North Marker is placed on your model, Roof Wizard assumes that north is pointing up the screen (positive Y direction).
🔧 Custom North Markers
You can create your own custom north marker design:
Create a sub-figure in the CAD system
Name the sub-figure exactly NorthMarker
Save it in the system database (RoofWiz.dab) - the same location as CAD report templates
The custom marker will be available for automatic placement
🛠 Practical applications
Town planning assessments:
Shadow calculations for town planning - assessing the effect of a new extension on a neighbour's pool area
💡 Tips
Always verify your north direction using a compass or site plans before placing the marker
The north marker affects all shadow and solar calculations in your project
Custom north markers must be named exactly "NorthMarker" to function correctly