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Build 01 — Float Floor

MediaVerse studio complex · floated acoustic floor (all 4 rooms) · click any drawing to zoom · acoustics5

What you need

1
Sylomer SR28 25mm · FL-01
Qty: 5 rolls
Certified Sylomer only — no generic neoprene
2
T&G plywood 18mm · FL-02
Qty: 2 layers (~80 m²)
Staggered joints; glue+screw plies together
3
Tremco acoustic sealant + 25mm closed-cell backer rod · W-03B
Qty: 1 kit
Float-floor perimeter seal (≠ Green Glue sealant)
4
Finished floor · FL-03 / FL-04
Qty: Vinyl 20 m² / Carpet 17 m²
Vinyl: VO+Studio · Carpet: Control+Editing
5
Wood glue + screws (ply lamination) · —
Qty: 1 lot
Laminate the two plywood layers together

Build sequence

wall1

1 Prep & isolate the slab

Clean and level the structural slab. Lay Sylomer SR28 25mm (mats/strips) per the Sylomer layout. The isolation layer must NOT touch the walls — the floated deck is fully decoupled.

wall25mm gap2

2 First plywood layer

Lay 18mm T&G plywood over the Sylomer. Leave a continuous 25mm gap to every wall face. Do not screw through to the slab or walls.

wall25mm gap3

3 Second plywood layer

Add the second 18mm T&G plywood layer with joints staggered vs layer 1. Glue + screw it to layer 1 ONLY (never to slab or walls) so the two plies act as one mass.

wall25mm gap4

4 Seal the perimeter gap

Fit 25mm closed-cell backer rod into the perimeter gap and cap with Tremco acoustic sealant. The gap stays continuous and is NEVER bridged by screed, skirting, conduit, or door thresholds.

wall25mm gap5

5 Lay the finished floor

Lay the finished floor on the floated deck: acoustic vinyl (VO Live, Video Studio) or carpet tile (Control, Editing). Skirting fixes to the floated floor only — never to the wall face.

Golden rule: the floated deck touches the structure ONLY through the Sylomer. Any rigid bridge (a screw to the slab, screed in the gap, skirting on the wall, a hard threshold) short-circuits the isolation. Keep the 25mm perimeter gap continuous on all sides.