Soundproofing Verification Checklist PDF

✓Wall & Framing Setup+

Wall width, height, and the number of identical walls were measured on site, not assumed from a floor plan.
Framing Type (single/staggered/double stud) matches what is actually being built or already exists in the wall.
Framing Material (wood/steel) and Stud Spacing match the real framing — steel-vs-wood changes the baseline STC meaningfully.
If a double or staggered stud wall, the plates are genuinely separate (double) or alternated on one shared plate (staggered) as modeled — a wall that doesn't match either pattern should use Single Stud instead.
Wall width and height were entered in consistent units — both feet or both metres, not mixed.

✓Layers & Insulation+

Drywall Layers per Side (1 or 2) matches the actual installation plan for BOTH wall faces equally — this calculator assumes a symmetric assembly.
Cavity Insulation selection matches whether batt insulation is actually installed — staggered/double-stud walls are always modeled as insulated since an uninsulated version is not a realistic build.
The exact batt/roll quantity for the selected insulation is cross-checked against the Batt & Roll Insulation Calculator, not estimated here.

✓Acoustic Add-On Treatments+

Resilient channel (if used) is confirmed available only for single wood-stud walls — the combination is silently ignored on steel, staggered, or double-stud framing, which this calculator does not model (published test data exists for steel-stud resilient channel; it is simply out of this calculator's current scope).
Resilient channel installation plan explicitly avoids any screw long enough to reach the stud through the channel — a single "shorted" screw measurably degrades real-world performance below the lab-tested number.
Green Glue (if used) is confirmed available only when 2 drywall layers per side are selected — it bonds the two layers together, it does not replace a layer.
Green Glue is applied at the manufacturer's stated rate (2 tubes per 4x8 ft sheet / 32 sq ft) in a bead pattern per the product's own instructions, not spread thin to stretch coverage.
MLV (if used) is installed with all seams taped and no gaps or tears — a torn or gapped MLV sheet loses most of its mass-barrier benefit at that point.

✓Materials Takeoff & Cost+

Resilient channel piece count accounts for every wall wider than one 12 ft stock length needing 2+ pieces PER horizontal run, not one combined total divided by 12 ft.
Resilient channel run spacing (24 in o.c. max) and screw count match the stud spacing actually used.
Green Glue tube count and MLV roll count were rounded UP to whole units, with a wastage allowance considered for cut-offs and corners.
Acoustic materials cost total is understood as scoped ONLY to resilient channel, Green Glue, and MLV — not a whole-wall materials cost (drywall sheets, studs, insulation batts, and finishing compound are priced separately via their own calculators).
Currency and unit cost entries reflect current local supplier pricing, not a default placeholder.

✓Interpreting the Result+

The estimated STC and its stated range are understood as a PLANNING estimate for comparing options, not a lab-certified rating for a code submittal or contractual guarantee.
If a specific STC rating is contractually required (e.g. a multi-family code minimum), a genuine GA-600 or manufacturer-published tested assembly matching the actual construction was independently confirmed.
The performance category description (what can realistically be heard through the wall) was communicated to the client/occupant in plain terms, not just the bare STC number.

Soundproofing Verification Checklist