Homestar Technical Clarification Rulings
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| Technical Question Title | Tool Version | Date Released | Credit Name | Tool Category | TC Link |
|---|---|---|---|---|---|
| STC rating of apartment common spaces | v5, v5 transition standard | June 2025 | HC6 - Acoustic Performance | HC | Link |
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Approved Ruling: The intent of this prescriptive pathway is for the control of internal ambient noise levels from external environmental source of noise such as road traffic etc. Therefore, these specifications apply to the external building fabric (e.g. façade/roof) of an apartment common area. Such that the common area within the apartment is protected from external source of noise. This means that, when the technical manual talks about STC ratings of external walls and ceilings in common areas, it refers to the external wall or ceiling between the common area and the outside. |
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