Core idea: Work within common-element, flooring and alteration requirements.
Ownership
Windows, slabs, exterior walls and ducts may be common elements.
Approvals
Submit products, tested assemblies and contractor details first.
Flooring
Use the exact accepted underlay and floor assembly.
Complaints
Use management procedures rather than unauthorized work.
A practical planning sequence
- Describe the source, timing and frequency character.
- Trace direct and flanking paths.
- Set a realistic improvement goal.
- Compare complete systems and local requirements.
- Document the baseline and inspect details during work.
- Repeat the same test afterward.
What cannot be guaranteed online
No website can promise a specific reduction in an unknown building. Field results depend on construction, workmanship, connected structures, openings and the source.
Written by Martin R. Calderwood.