What needs to be clarified
Review metric comparability and measurement conditions, separating laboratory glazing performance from installed window and façade results.
Materials to prepare
- Report with raw records, times and microphone layout
- Tested-product data and installed window specification
- Room plan, vents and sash states
What to compare
Identify the metric, frequency data and outdoor-level method. Check synchronization, background, openings and source geometry. Match laboratory specimen scope to the installed assembly. Distinguish arithmetic difference from a defined insulation metric; assess other paths only where records support it.
Possible outcome of the analysis
A comparison table may define the report’s limits and specify repeat measurement with a named metric and documented opening states.
Limits of the conclusions
Laboratory glazing ratings do not equal arbitrary room noise reduction. Non-simultaneous readings cannot reliably separate window effects from source changes.