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Fire Rating

DAQS includes several rules to ensure that fire resistance ratings are correctly assigned, consistently formatted, and logically coordinated between elements like walls, doors, and rooms.

1. Allowed Values

The Fire Rating parameter must contain one of the following approved values:

0, 20, 30, 60, 90, 120

These values represent the fire resistance in minutes. Any other value will trigger a validation issue.

ℹ️ Note: These values may vary by country. Contact us if your local regulations use different durations (e.g., 45 or 180 minutes).

2. Missing Fire Rating Parameter

Not all Revit elements have the built-in Fire Rating parameter.

If DAQS reports that the Fire Rating parameter does not exist:

  • Check whether the element is expected to have a fire rating (e.g., wall, door, ceiling).
  • If applicable, create or assign a shared parameter named Fire Rating.
  • Alternatively, use a custom parameter that is recognized by your project's QA/QC setup.

⚠️ If your team uses a non-standard parameter name (e.g., FireResistance or Brandwerendheid), inform your DAQS administrator so the rule can be adjusted.

3. Fire Rating – Door vs. Host Wall

This rule checks whether the fire rating of a door is equal to or higher than that of its host wall.

  • ✅ Valid: Door = 60, Wall = 60
  • ✅ Valid: Door = 90, Wall = 60
  • ❌ Invalid: Door = 30, Wall = 60

This rule only applies to doors that are hosted by a wall.

FireRating

🔎 This rule helps ensure regulatory compliance, especially for fire compartments and escape route protection.

4. Fire Rating – Room and Room-Bounding Elements

This rule checks whether a room's fire performance is consistent with the ratings of its bounding elements (e.g., walls, doors, ceilings).

🧪 Note: This check may require your model to have properly defined room boundaries and that bounding elements are correctly classified as room-bounding in Revit.

More detailed logic and guidance for this rule will be provided in a future update.

5. Why Use 0 Instead of Leaving the Fire Rating Blank?

Setting the fire rating of an element to 0 explicitly indicates that the element has no fire resistance requirement.

By contrast, leaving the value blank can mean:

  • The fire rating was not evaluated
  • The model is incomplete
  • The element may have been missed during coordination

This ambiguity can cause problems in:

  • Regulatory submissions
  • Fire compartment validation
  • Automated data extractions or IFC exports

✅ Use 0 when no fire resistance is required.
❌ Avoid leaving the value empty unless the element genuinely does not require the field (and the rule has been configured to ignore it).

How to Fix Fire Rating Issues

  1. Use a consistent parameter name (Fire Rating) across all applicable elements.
  2. Ensure the value is one of the allowed durations (0, 20, 30, 60, 90, 120).
  3. For hosted doors, update the fire rating so that it meets or exceeds the host wall's value.
  4. Use 0 explicitly for elements without a required fire rating—do not leave the field empty.
  5. Coordinate room fire rating logic by ensuring all bounding elements have valid and consistent fire rating values.

Let us know if your region requires different durations or naming standards, so we can tailor the rules to your compliance needs.