Identifying Risk Faces¶

Use Risk Matrix to identify exterior walls that form the building faces used by the risk assessment workflow.

Processing a face assigns a coordinated face number, model parameters, colour and Risk Face tag.

Open a Risk View¶

Open Risk Matrix from:

Flow → Model → Risk

Risk Matrix works with views whose names begin with:

RISK-

The default view is:

RISK-01-Elevation

Use Previous View and Next View in the Current Risk View card to move through the available Risk Views.

Set the Project Risk Values¶

Before selecting walls, review the values shown under Project Risk Values.

The project Wind Zone is read automatically from Revit Project Information.

Select the remaining values required for the walls you are about to process:

• Number of Storeys
• Roof / Wall
• Eave Width
• Envelope
• Deck

These values are written to the walls when Pick Walls is completed.

➡️ See Assigning Risk Information for more information.

Pick Exterior Walls¶

Click:

Pick Walls

Then select the exterior walls that make up the Risk Face or faces you want to process.

Risk Matrix processes wall types whose names begin with:

ADa_E_

The selected walls are analysed and grouped according to their position in the current Risk View.

How Walls Are Grouped¶

Walls can be treated as one Risk Face when they are:

• approximately coplanar;
• spatially continuous in the current Risk View; and
• close enough to touch or overlap within the tool's grouping tolerance.

This allows related wall segments, including vertically related segments, to share the same Risk Face where their projected extents form a continuous face.

A genuine break or change of plane creates a separate group.

Face Numbering¶

New Risk Faces are assigned sequential numbers:

Face 1, Face 2, Face 3 and so on.

Risk Matrix keeps track of the next available face number in the project.

If a processed group already contains a Risk Face number, that existing number is retained rather than automatically creating a new one.

When a face is removed, the remaining face numbers can be compacted so the sequence does not contain unnecessary gaps.

Colours and Tags¶

When a Risk Face is processed, Risk Matrix automatically:

• applies a distinct colour to the walls in the current Risk View;
• uses consistent projection line graphics;
• writes the Risk Face information to the walls; and
• places a Risk Face label tag where possible.

The colours identify Risk Face numbers. They do not represent the final E2 risk score.

Risk Matrix uses the tag:

ADa_TAG_Wall_Risk : Risk Face label

Only one Risk Matrix tag is created for a Risk Face in the relevant view.

Copy an Existing Face¶

Use Copy Face when another wall should belong to an existing Risk Face.

The workflow copies the source face assignment and its Risk Matrix/cladding information to the target wall or walls and applies the corresponding face graphics.

If moving walls between faces leaves an old face empty, Risk Matrix compacts the remaining face numbering.

Match a Wall End¶

Use Match Wall End when a wall end or adjoining wall needs to display the same Risk Face colour for graphical continuity.

This operation applies the source face graphics to the target wall in the current view.

It does not:

• assign the target wall to that Risk Face;
• copy Risk Matrix parameters; or
• create a Risk Face tag for the target wall.

Resetting Faces¶

Risk Matrix supports resetting processed Risk Face information.

Resetting an individual face clears its Risk Matrix wall parameters, removes its Risk Face graphics and tags, and then compacts the remaining face numbering.

Reset Risk Matrix performs a much broader project-wide reset.

➡️ See Troubleshooting before using a full reset if you only need to correct one face.

Related Help¶

• Risk Matrix
• Assigning Risk Information
• Reviewing Risk Results
• Risk Documentation
• Troubleshooting