Air Gaps Behind PET Acoustic Panels: Mounting and Evidence Guide
Category
Wood acoustic panels
Understand air gaps behind PET acoustic panels by reviewing cavity dimensions, infill, mounting and the relevant test construction.
Record the panel, cavity, any infill and substrate as one proposed assembly. Use the actual test arrangement to assess it, rather than assigning a result from the gap alone.
Table of Contents
Define the Void as Part of the Construction
An air gap behind a PET acoustic panel is a mounting condition, not an independent performance guarantee. Identify the panel, cavity, backing or infill and supporting surface together. Compare the proposed arrangement with relevant test information before assigning an acoustic value.
Show What the Dimension Means
State whether the depth is measured from the substrate to the panel back, from the face of a support or to the front of the finished panel. Show any infill and its position. Two details labelled with the same number may describe different tested constructions.
| Detail | Evidence question |
|---|---|
| Panel | Does the report identify this material and thickness? |
| Void | Does the mounting arrangement match the proposed depth? |
| Infill | Is this layer included in the tested construction? |
| Substrate and edges | Are supporting conditions and interfaces relevant? |
Coordinate Space and Services
A cavity changes the finished depth. Check sockets, openings, furniture, supports and access before accepting a detail. The supplier and project team should approve the fixing arrangement and any applicable fire documentation for the complete installation.
Keep Absorption and Isolation Separate
An absorption report can support comparison of room treatments. It does not establish a partition STC, speech privacy or a guaranteed reduction in ambient noise. No universal cavity depth, infill recipe or acoustic class is specified here.
Start with PET acoustic panel product information and the PET selection guide. The installation checklist addresses supporting surfaces and fixing, while the cost guide helps include extra construction in the quotation.
Air-Gap Coordination Checklist
Check available depth, supporting construction, services and evidence before confirming the cavity detail.
Available Depth
Show the finished projection and its effect on doors, furniture and other interfaces.
Substrate and Support
Confirm the actual supporting surface and approved fixing arrangement for the selected panel.
Services and Access
Coordinate sockets, openings and maintenance routes with the responsible project team.
Evidence and Handover
Keep the accepted construction detail and relevant reports with the installation and inspection record.