Listed Assembly Evidence Reference

Return evidence checks for a listed acoustic or fire-rated assembly without claiming that a listing supplies a universal flanking correction.

Description

Verify the exact listing or design identifier, edition, manufacturer, construction, and rating scope against the listing service record.

Verify the exact listing or design identifier, edition, manufacturer, construction, and rating scope against the listing service record. This reference explains the selected concept and the evidence needed to interpret it.^[1]

The returned values include Source, Statement, Topic. The How section below explains the calculation, input rules and interpretation.

When to use Listed Assembly Evidence Reference

Use Listed Assembly Evidence Reference when you need to evaluate the supplied records under the calculation and evidence rules below. A fire-resistance listing is not automatically an acoustic rating, and neither establishes every field flanking path. This is an introductory excerpt, not the complete standard, a current compliance check or a project-specific calculation.

Choose the measured quantities, units, weighting and measurement basis before entering values. For a reference, select the exact topic. For a catalog lookup, prepare complete source-backed records; for a screen, select an applicable caller limit.

How to use Listed Assembly Evidence Reference and understand its results

Choose the measured quantities, units, weighting and measurement basis before entering values. For a reference, select the exact topic. For a catalog lookup, prepare complete source-backed records; for a screen, select an applicable caller limit.
Enter topic using the field table and calculation rules, then run the tool.
Read source, statement, topic. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
topic	Reference topic to return.	string; one of "identifier", "configuration", "caution"	Required

Choose one of the exact topic values in the table. The tool indexes a fixed, locally embedded reference entry and returns its source label, statement and unchanged topic. It does not fetch the source or update the wording. Topic meanings and all returned entries are shown below.

Selection	Returned reference entry
identifier	source: UL Product iQ or the applicable listing body; statement: Verify the exact listing or design identifier, edition, manufacturer, construction, and rating scope against the listing service record.; topic: identifier
configuration	source: Applicable listed design; statement: Studs, fasteners, layers, insulation, joints, penetrations, and perimeter details must match the listed construction where the listing requires them.; topic: configuration
caution	source: Applicable listing and acoustic test report; statement: A fire-resistance listing is not automatically an acoustic rating, and neither establishes every field flanking path.; topic: caution

selected exact topic → embedded source label, explanatory statement and topic

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
source	Source used for the reference statement.	string
statement	Narrow reference statement for the selected topic.	string
topic	Selected reference topic.	string; one of "identifier", "configuration", "caution"

json

{
  "input": {
    "topic": "identifier"
  },
  "output": {
    "source": "UL Product iQ or the applicable listing body",
    "statement": "Verify the exact listing or design identifier, edition, manufacturer, construction, and rating scope against the listing service record.",
    "topic": "identifier"
  }
}

Limitations and assumptions

A fire-resistance listing is not automatically an acoustic rating, and neither establishes every field flanking path. This is an introductory excerpt, not the complete standard, a current compliance check or a project-specific calculation.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Extremely large text inputs are rejected. Missing fields without a declared default, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Layered Gypsum Wall STC Lookup: A wall STC rating belongs to a particular complete tested assembly. Similar materials alone do not establish an interchangeable rating. For a complementary task, use IIC Floor Assembly Lookup: Impact insulation class (IIC) summarizes a tested floor-ceiling assembly under a specified impact test. It does not describe an isolated finish without its construction.

References

Listed Assembly Evidence Reference — tool.io

Similar or alternative tools

Layered Gypsum Wall STC Lookup
A wall STC rating belongs to a particular complete tested assembly. Similar materials alone do not establish an interchangeable rating.
IIC Floor Assembly Lookup
Impact insulation class (IIC) summarizes a tested floor-ceiling assembly under a specified impact test. It does not describe an isolated finish without its construction.