B-Factors

B-factors are temperature factors assigned to building elements. The web app shows them as adjacency options with a numeric value and a short boundary description.

Setting b-factors

For Individual Elements:

1. Select element in 3D viewer or element list
2. Properties panel displays on right
3. Locate B-factor field
4. Click dropdown
5. Select the matching adjacency option
6. Value is applied immediately

For Multiple Elements:

1. Enable multi-select mode
2. Use the list checkboxes to choose elements, or use Select all
3. Bulk editing toolbar appears at top
4. Click B-Factor button
5. Select value from dropdown
6. Value applies to all selected elements

B-factor values

Available options depend on the element type. Common options include:

• 1.0 - Against external air
• 0.7 - Against unheated room
• 0.7 - Ground floor slab and basement floor
• 0.0 - Not applicable

Viewing b-factors

In Properties Panel:

• Select element
• B-factor field displays current value

In Element Lists:

• B-factor appears as a badge on elements that show adjacency data
• Element groups are listed by type and sorted by name

In 3D Viewer:

• May display color coding based on B-factor value
• Check visualization mode settings

Troubleshooting

B-factor dropdown not appearing

• Check element is selected
• Verify properties panel is open
• Refresh page

Can’t change B-factor

• Confirm the element type supports the selected adjacency
• Try refreshing page

B-factor not saving

• Check internet connection
• Value selected from the dropdown
• Try setting value again