Construction Guides Construction Guide

Finish Schedule

Room-by-room surface finish specifications. Every floor, wall surface, ceiling tile, and bass trap — material, product, thickness, and acoustic rating.

4Rooms
5Surface Types
2.75 mCeiling Height
15 cmFloor Buildup
Legend: AC Acoustic Critical — no substitution without consultant approval.   DEC Decorative — colour/finish may vary.

VO Live

NW quadrant — deadest room, voiceover and narration recording

Area--
Volume--
RT60 Target--
NC Target--
NC 20 Max
Treatment intent: Maximum absorption. 70% wall coverage with fabric-wrapped rockwool panels. Full-coverage ceiling tiles at NRC 0.90. 4 floor-to-ceiling bass traps in all corners. Motorised tuning curtain for RT60 adjustment between 0.20 s (curtain open) and 0.27 s (deployed).
Surface Material / Assembly Product Thickness Rating Notes
📏Floor Float floor + carpet Sylomer SR 28 pads + 2×18mm T&G plywood + carpet finish ~150 mm total buildup Isolation 10 mm perimeter gap all sides, filled with acoustic sealant. Carpet on top of plywood. AC
🧱Walls — All 70% coverage — 50 mm rockwool absorption panels, fabric wrapped Rockwool RWA45 (45 kg/m³) core, acoustically transparent fabric cover 50 mm panel + 25 mm air gap off wall face 70% coverage Panels on all four wall faces (incl. diagonal NW). 30% remaining wall is painted gypsum. AC
🧱Walls — substrate North: concrete + 25mm air gap + RSIC-1 clips + hat channel + 50mm rockwool + 2× gypsum Knauf Soundshield Plus 15mm, Green Glue between layers ~100 mm total treatment STC 65 North concrete wall (exterior). Do not breach air gap. AC
🧱Walls — substrate NW diagonal: concrete + 25 mm air gap + RSIC-V clips + hat channel + 50 mm rockwool + 2× gypsum Knauf Soundshield Plus 15 mm ~100 mm total treatment STC 65 Diagonal concrete wall (exterior). RSIC-V clips for angled geometry. AC
🧱Walls — substrate South (VO/Control partition): 2×12.5mm gypsum + 100mm studs + rockwool + 2×12.5mm gypsum Knauf Standard 12.5mm both sides; Rockwool RWA45 cavity fill 150 mm total STC 53 Includes observation window cutout — see DOOR-DETAILS for window spec. AC
🧱Walls — substrate East (Buffer Spine): 2×12.5mm gypsum + Green Glue + 100mm studs + rockwool + 2×12.5mm gypsum + Green Glue Knauf Soundshield Plus; Green Glue Noiseproofing Compound 150 mm total STC 55 Buffer spine face. Duct penetrations fully sealed with intumescent collars. AC
▢Ceiling tiles Full coverage mineral wool ceiling tiles in exposed T-grid at 2.75 m FFL Rockfon Sonar E 600×600mm 20 mm tile NRC 0.90 100% coverage. Fire rating A1 non-combustible. White (paintable). Armstrong Prelude 24mm T-grid. AC
□Above-tile insulation Rockwool batts laid on top of tiles — prevents plenum flanking Rockwool ProRox SL 930 (100 mm), 40 kg/m³ 100 mm batts NRC 0.95 Cut to 610×610 mm, butt joints, no gaps. Verify grid load capacity before installation. AC
◤Bass traps Triangular corner-mounted absorption, floor to acoustic ceiling Rockwool RWA45 (100 kg/m³) core, 300 mm triangular section, fabric wrapped 300 mm leg (triangular) 4 corners Floor to ceiling (2.75 m) in all four room corners. Fabric: acoustically transparent. AC
🎬Tuning curtain Motorised ceiling-track curtain — RT60 tuning element 450 g/m² acoustic velour, double-layered, 3.2 m² coverage. DC motor <20 dBA Floor-to-ceiling drop (2.75 m) Variable Retracted = RT60 0.20 s. Deployed = RT60 0.27 s. Both within acceptance range. Motor between takes only. DEC

Control Room

SW quadrant — mixing and monitoring, trapezoid plan

Area--
Volume--
RT60 Target--
NC Target--
NC 25 Max
Treatment intent: Front wall absorption behind monitors, first-reflection panels on side walls, QRD diffuser array on rear wall. 60% ceiling tile cloud coverage. 4 corner bass traps. Trapezoid plan geometry naturally diffuses width modes — non-parallel west wall is the diagonal concrete.
Surface Material / Assembly Product Thickness Rating Notes
📏Floor Float floor + carpet Sylomer SR 28 pads + 2×18mm T&G plywood + carpet finish ~150 mm total buildup Isolation 10 mm perimeter gap. Carpet finish — equipment must roll easily; choose low-pile. AC
🧱Front Wall (North) 50 mm rockwool absorption behind monitor positions Rockwool RWA45 50 mm panels, fabric wrapped 50 mm + air gap Absorption Full width behind monitors. Eliminates comb filtering at mix position. AC
🧱Side Walls First-reflection point panels — absorption at primary reflection zones Rockwool RWA45 50 mm panels, fabric wrapped 50 mm + air gap Targeted Locate using mirror method from mix position. Remaining side wall surfaces: painted gypsum. AC
🧱Rear Wall (South) QRD diffuser array 80×80 cm QRD panels (N=7 sequence), MDF construction 80×80 cm modules, depth per design Diffusion Full rear wall coverage. Eliminates flutter echo and rear wall reflection to mix position. AC
🧱West Wall (Diagonal) Concrete + RSIC-V clips + gypsum substrate; absorptive panels optional Knauf Soundshield Plus 15 mm over RSIC-V system ~100 mm total STC 65 Non-parallel geometry naturally diffuses modes. Exposed gypsum face acceptable — paint finish. DEC
🧱East Wall (Buffer) Buffer spine face — gypsum with Green Glue Knauf Soundshield Plus 15 mm + Green Glue 150 mm total (spine) STC 55 Paint finish. No treatment panels required on buffer face. AC
▢Ceiling tiles 60% cloud coverage mineral wool tiles — remainder open plenum (grid present, no tile) Rockfon Sonar E 600×600mm 20 mm tile NRC 0.90 60% fill in T-grid at 2.75 m FFL. Balance maintains liveness at high frequencies. A1 fire rating. AC
□Above-tile insulation Rockwool batts on all tiles (including non-tiled grid positions) Rockwool ProRox SL 930 (100 mm) 100 mm NRC 0.95 Laid on tiles; also placed on bare grid rails to prevent plenum flanking over partial-tiled ceiling. AC
◤Bass traps Triangular corner-mounted, floor to ceiling Rockwool RWA45 (100 kg/m³), 300 mm triangular section, fabric wrapped 300 mm leg 4 corners All four room corners, full height 2.75 m. Critical for RT60 0.30–0.40 s target. AC

Video/Podcast Studio

NE quadrant — 3-camera green screen, podcast, live performance

Area--
Volume--
RT60 Target--
NC Target--
NC 25 Max
Treatment intent: Balanced 50% absorption / 20% diffusion / 30% reflective on walls — livelier than VO Live to support video production energy. 80% ceiling tile coverage with impact-resistant tiles (equipment rigging above). Hard floor surface for equipment mobility. 4 corner bass traps.
Floor note: Video/Podcast Studio has NO carpet. Hard surface required for rolling equipment, camera dollies, and tripods. Float floor plywood receives a smooth-finish vinyl or sealed hardwood overlay — NOT carpet. See tile note below.
Surface Material / Assembly Product Thickness Rating Notes
📏Floor Float floor — NO carpet. Hard surface finish Sylomer SR 28 pads + 2×18mm T&G plywood + smooth vinyl or sealed hardwood overlay ~150 mm float + 3–8 mm finish Hard surface 10 mm perimeter gap maintained. Avoid thick rigid tiles that bridge float floor isolation. AC
🧱Walls — Absorption (50%) 50mm rockwool panels, fabric wrapped — distributed on all wall faces Rockwool RWA45 (45 kg/m³) panels, acoustically transparent fabric 50 mm + air gap 50% coverage Evenly distributed around all walls. No single wall to be 100% absorptive. AC
🧱Walls — Diffusion (20%) QRD or skyline diffuser panels MDF QRD panels, natural or painted finish Per design depth 20% coverage Placed at primary reflection zones opposite absorptive panels. Maintains liveness and spatial feel for video. AC
🧱Walls — Reflective (30%) Painted gypsum — bare finish Knauf Soundshield Plus face; standard wall paint Gypsum face (no treatment) 30% of area Remaining wall area. Colour per client preference. Do not add mass (no tile cladding). DEC
🧱North Wall (exterior) Concrete + RSIC-1 clips + hat channel + 50mm rockwool + 2× gypsum Knauf Soundshield Plus 15 mm ~100 mm treatment STC 65 Exterior concrete. Treatment panels applied on top of gypsum face. AC
🧱East Wall (server room) 100mm existing air gap + 2×16mm gypsum + Green Glue + 70mm studs + rockwool + 2×16mm gypsum + Green Glue Knauf Soundshield Plus; Green Glue CLD 16 cm new-build; 234mm total incl. existing gap STC 62 Do NOT fill existing 100mm air gap — critical decoupling from server noise (B313). AC
▢Ceiling tiles 80% coverage mineral wool tiles — impact-resistant grade for rigging loads Rockfon Sonar E 600×600mm 20 mm tile NRC 0.90 80% fill in T-grid at 2.75 m FFL. A2-s1,d0 fire rating. Impact-resistant for lighting/camera rigging. AC
□Above-tile insulation Rockwool batts on tiles Rockwool ProRox SL 930 (100 mm) 100 mm NRC 0.95 610×610mm cut batts, butt joints, no gaps. Verify grid load with 20% open tiles accounted for. AC
◤Bass traps Triangular corner-mounted, floor to ceiling Rockwool RWA45 (100 kg/m³), 300 mm triangular section, fabric wrapped 300 mm leg 4 corners All four room corners, full height 2.75 m. Fabric colour: client choice (acoustically transparent). AC

Editing Suite

SE quadrant — post-production workstations, also serves as circulation corridor

Area--
Volume--
RT60 Target--
NC Target--
NC 35 Max
Treatment intent: Minimal acoustic treatment — NC-35 tolerance is most relaxed in the complex. Standard office-grade ceiling tiles. 30% wall absorption (no bass traps required). Carpet on float floor. Main entry door D1 (STC 50) is in the south wall of this room.
Surface Material / Assembly Product Thickness Rating Notes
📏Floor Float floor + carpet Sylomer SR 28 pads + 2×18mm T&G plywood + carpet finish ~150 mm total buildup Isolation 10 mm perimeter gap. Carpet reduces footfall noise — important as this room is circulation corridor. AC
🧱Walls (30% coverage) Minimal absorption panels — only 30% of wall area treated Rockwool RWA45 50 mm panels, fabric wrapped 50 mm + air gap 30% coverage Concentrate at workstation positions to reduce reflections at monitor listening points. AC
🧱South Wall (exterior) Rebuilt south wall: 2×12.5mm gypsum + 100mm studs + rockwool + 2×12.5mm gypsum Knauf Standard 12.5mm; Rockwool RWA45 100mm cavity 150 mm total STC 50 Contains D1 main entry door (STC 50) — door is weakest link in this wall. Paint finish. AC
🧱East Wall (server room) 100mm existing air gap + new stud frame + gypsum + Green Glue Knauf Soundshield Plus; Green Glue CLD 16 cm new-build; 234mm total STC 62 Do NOT fill existing air gap. Paint or panel finish on interior face. AC
🧱North Wall (Video Studio partition) 12.5mm gypsum + 70mm studs + rockwool + 12.5mm gypsum Knauf Standard 12.5mm; Rockwool RWA45 cavity ~95 mm (nominal 100mm incl. tracks) STC 40 Partition to Video Studio. Contains D4 door (STC 40). Match panel finish to room. AC
🧱West Wall (Buffer Spine) Buffer spine east face — gypsum + Green Glue Knauf Soundshield Plus; Green Glue 150 mm (spine total) STC 55 Contains D2 door to Control Room. Paint or light treatment finish. AC
▢Ceiling tiles Standard office-grade mineral wool tiles — full coverage Armstrong Ultima+ 600×600mm 19 mm tile NRC 0.70 100% coverage in T-grid at 2.75 m FFL. Class A fire rating. Standard white. AC
□Above-tile insulation Rockwool batts on tiles Rockwool ProRox SL 930 (100 mm) 100 mm NRC 0.95 610×610mm cut batts. Prevents plenum flanking from adjacent spaces. AC
◤Bass traps None required — — N/A NC-35 tolerance is sufficient without corner bass traps. Omit to save cost. Low-frequency modal control not critical in this room. DEC
All Rooms

Common Requirements

Float Floor — All Rooms:
Sylomer SR 28 pads are installed directly on concrete slab. 2×18mm tongue-and-groove plywood on top (staggered joints). All wall framing sits ON the float floor — installed AFTER float floor is cured. 10mm perimeter gap at all walls, filled with Tremco Acoustical Sealant. No rigid bridging at any point.
Ceiling Grid — All Rooms:
Armstrong Prelude 24mm exposed T-grid. Main runners at 1200mm centres, hung on 12-gauge galvanised wire with neoprene isolation washers. Wall angle installed level at exactly 2.75m FFL. Plenum barriers (15mm Knauf Soundshield + Tremco sealant) at every partition wall, full height to slab.
Wall Paint — All Rooms:
All gypsum faces receive standard latex paint. Colour per client preference. Do not use texture paint, wallpaper, or acoustic foam tiles over gypsum face — these add unspecified absorption or mass. Panel colours on fabric-wrapped absorption panels: client choice, but fabric must be acoustically transparent (test per ISO 9053 or equivalent).
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