groove - stil- · pdf filegroove - timber acoustic panels how the panels absorb sound as well...

Timber Acoustic Panels

Groove

Groove - timber acoustic panels

How the panels absorb sound

As well as the slits in the face, Groove panels have large cut-outs to the rear or the centre which meet with the slits in the front, creating perforations. These perforations, combined with a cavity behind the panel create resonance, due to the air in the cavity which acts like a spring. In combination with damping, typically provided by a layer of mineral fibre in the cavity, to reduce sound energy. This is know as a Helmholtz absorber.

Changing the perforation pattern (in this case by selecting the width between the slits) alters the acoustic performance. Differences in the cavity depth and absorbent material in the void also have consequences.

Groove panels

The ultimate renewable material for architecture is also one of the oldest, and most attractive. Wood is solid, can be bent and shaped, is easily machined, and with the used of computer-aided-design and CNC milling, timber is also continuously contemporary. These benefits make wood our preferred material for room acoustics solutions.

Groove panel systems are available for both ceilings and walls. They are simple to install, and provide sound absorption with a distinct linear pattern. Many customisation options are available for finish and slat sizes, and we can supply access panels, edge trims and factory produced light openings on request.

Design assistance

Samples are available on request. We also provide a comprehensive design service to help you integrate our solutions in your project. We can supplly matching joinery items such as doors and detail trims to ensure a seamless end result.

Acoustic advice

When contacting Stil Acoustics, you can expect to be assisted by a member of the Institute of Acoustics, with extensive real-world experience.

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Combining carpentry expertise with acoustic knowledge to give maximum control over sound and aesthetics

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System options overview

Groove 12

-3mm slot width, 12mm slat width- Sound absorption - Class C

Groove 5

-3mm slot width, 5mm slat width- Sound absorption - Class C

Groove 24

-3mm slot width, 29mm slat width- Sound absorption - Class D

Groove R

-3mm slot width, random slat width- Sound absorption - Class C

Groove 5-H

-3mm slot width, 5mm slat width- Sound absorption - Class B

Groove 24-W

- 8.5mm slot width, 23.5mm slat width- Sound absorption - Class C

Panel sizes

3030 x 192 mm (tongue and groove)3030 x 1200 mm (veneer)3030 x 1280 mm (HPL)

Fire performance

BS 476: Part 6 & 7 Class O/ B-s1-d0 (or) not required

Environmental factors

FSC certified upon request.Carbon off-setting – Timber replaces other energy intensive materials.

Finshes

HPL (High Pressure Laminate)/Veneer with lacquer/Lacquer to RAL or NCS colour.

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Finish options

• Hundreds of finishes• Scratch resistant• UV resistant• Low maintainance• FSC available• Fire performance

available

• Natural look• Match other joinery• Stain options• FSC available• 10% to 50% sheen.• Fire performance

available

• RAL matching• Match other joinery• FSC available• 10% to 50% sheen.• Fire performance

available

• Hundreds of finishes• Scratch resistant• UV resistant• Low maintainance• FSC available• Fire performance

available

HPL ColoursHPL Wood effect

Veneer examples

Clear/stained lacquer on veneer

Coloured lacquer

American Cherry Siberian Larch

American Walnut (H)

Bamboo (H) Oak - black stained (H)

Wenge (H)Ash

Red Cedar (C)

Whitewashed Oak (H)

Maple

BirchWhite Oak

(C) - Expect colour variation between panels(H) - Higher cost options* Please note that images are for guidance only and variations will occur in natural timber products.

Maple

Warm Walnut

Vintage Fumed Oak

Manzano

Grey Maple

Grey Ash

Natural Pine

Natural Walnut

Smoked Oak

Olmo

Grey Ash Olmo

Provence Grey

Natural White Oak

Vintage Oak

European Oak

Papier

Grey Wash

Grey Olmo

White Wash White Oak

Vintage Grey Oak

Nobel Oak

Black stained Oak

Grey Mocha

Grey Walnut

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Finish options - HPL wood

Traditional wood

Modern wood

These are the standard HPL (high pressure laminate) options. Many more are available and we can try to match finishes.The standard thickess is 0.9mm and these are highly scratch resistant, UV resistant, and low maintanance finishes.

Colour oil on Oak

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Finish options - Oak

Castle Brown

Pine

Mist 5%

Cherry Coral

Savanna

Natural

Ash Grey

Havanna

Smoked Oak

Charcoal

Pure

Mud Light

Cornsilk

Sky Grey

Olive

Bourbon

Mist

Titanium Grey

Biscuit

Ice Brown

Stone

Cotton White

Slate Grey

Oyster

AquaAntique Bronze

Gris Belge

Smoke 5%

Chocolate

Silver Grey

Oak

Black

Mahogany

Super White

Dark Oak

Smoke

Vanilla WhiteWalnut White 5%

Real wood and HPL (high pressure laminate) comparison

Black stained Oak HPL - Black stained OakHPL - Natural White Oak

HPL - White washed Oak

Unfinished White Oak*

White washed White Oak

Lacquered White Oak HPL - Warm White Oak

*Unfinished real White Oak shown only to convey colour - should not be specified.*HPL examples can be specified with the references shown. Contact us for other options.

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Design options

Create unique spaces by mixing finishes and groove widths.

We can supply doors and other joinery items to match the Groove panels.

We can supply attached to fire rated acoustic doors and also cupboards.

We supply reflective panels to match the acoustic ones, for an integrated design.

We can offer designs or you can come up with your own.

As well as fascetted curves from vertical planks, we supply flexible boards.

Add a complimentary skirting

Form curves

Mix and match finishes

Match finishes with other joinery

Seamlessly integrate doors

Match non-acoustic panels

Groove 12 - datasheet

Specification checklist

Fire performance Up to BS 476: Part 6 & 7 Class O/ B-s1-d0

Demountable ceilings Grid ceiling option or access hatches

Standard MeasurementsStandard MeasurementsStandard Measurements

3030 x 192 mm (tongue and groove)3030 x 1200 mm (veneer)3030 x 1280 mm (HPL)

Thickness 20mm

Weight 10.5kg/m2

Core Black moisture resistant MDF/Black fire retardant MDF (normal MDF on request)

Can be applied to curved surfaces Yes

Finishes HPL - 0.9mm with Over 500 options available. Veneer finishes. Lacquered

Can be cut on site Yes

Clear lacquer sheen levels (veneer) 10-50% for fire retardant lacquer

Wall mouting Softwood battens at 600mm centres. Black pins fired through grooves.

Ceiling mounting MF system with MDF strips at 600mm centres. Black pins fired through grooves.

Panel backing Black fleece tissue inside the panel

Typical absorption used 50mm mineral fibre

Trims , doors and finishing details available Yes

Groove 12 acoustic performance ɑW Class 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz

70mm cavity including 50mm 40kg mineral fibre 0,65 LMH C 0,40 0,85 0,95 0,65 0,60 0,80

20mm cavity including 20mm Polyester wool 0,65 M C 0,15 0,40 0,80 0,95 0,65 0,60

Cupboard door with 500mm cavity 0,35 H D 0,45 0,35 0,35 0,35 0,35 0,50

Absorption data for Groove 12 (EN 354: 2003)-3mm slot width, 13mm slat width

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0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Groove R - datasheet




Standard MeasurementsStandard Measurements

3030 x 1200 mm (veneer)3030 x 1280 mm (HPL)

Thickness 20mm

Weight 10.5kg/m2











Groove R acoustic performance ɑW Class 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz



Cupboard door with 500mm cavity 0,35 H D 0,45 0,35 0,35 0,35 0,35 0,50

Absorption data for Groove R (EN 354: 2003)3mm slot width, random slat width

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0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Groove 5-H - datasheet




Standard Measurements Standard MeasurementsStandard Measurements

3030 x 192 mm (tongue and groove) 3030 x 1200 mm (veneer)3030 x 1280 mm (HPL)

Thickness 18mm

Weight 11kg/m2








Panel backing Black fleece tissue to the back of the panel



Groove 5-H acoustic performance ɑW Class 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz

70mm cavity including 50mm 40kg mineral fibre 0,80 B 0,25 0,65 0,95 0,80 0,75 0,75

20mm cavity including 20mm Polyester wool 0,70 MH C 0,15 0,40 0,70 1,00 0,90 0,85

Absorption data for Groove 5 -H (EN 354: 2003)3mm slot width, 5mm slat width (higher perforation than Groove 5)

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0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Groove 24-W - datasheet






Thickness 18mm

Weight 11kg/m2











Groove 24-W acoustic performance ɑW Class 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz

70mm cavity including 50mm 40kg mineral fibre 0,60 LM C 0,45 0,90 1,00 0,60 0,50 0,70


Absorption data for Groove 24-W (EN 354: 2003)8.5mm slot width, 23.5mm slat width

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0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Thickness 18mm

Weight 12kg/m2












70mm cavity including 50mm 40kg mineral fibre 0,40 LM D 0,30 0,85 0,85 0,45 0,30 0,35

20mm cavity including 20mm Polyester wool 0,50 MM D 0,15 0,35 0,85 0,80 0,45 0,35

Absorption data for Groove 24 (EN 354: 2003)3mm slot width, 29mm slat width

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ient

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0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Standard MeasurementsStandard Measurements

3030 x 1200 mm (veneer)3030 x 1280 mm (HPL)

Thickness 20mm

Weight 10.5kg/m2













20mm cavity including 20mm Polyester wool 0,75 H C 0,15 0,45 0,80 0,95 0,80 0,90

Absorption data for Groove 5 (EN 354: 2003)3mm slot width, 5mm slat width

3rd

octa

ve a

bsor

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effic

ient

, ɑs

0

0.2

0.4

0.6

0.8

1.0

1.2

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

100

125

160

200

250

315

400

500

630

800 1k

1.25k

1.6k 2k

2.5k

3.15k 4k 5k

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Finish examples

Groove 12 White HPL 130Laminate

Groove R Beech veneer10% sheen clear lacquer

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Groove 5 Oak VeneerCharcoal Oil

Groove R White Wash HPLLaminate

Groove 12 Wenge HPLLaminate

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Groove 24 Crown cut White Oak Veneer10% sheen clear lacquer

Groove 12 Crown cut White Oak Veneer10% sheen clear lacquer

Groove 24-W Crown cut White Oak Veneer10% sheen clear lacquer

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Groove 5-H Walnut veneer10% sheen clear lacquer

Groove 12 Cherry veneer10% sheen clear lacquer

Groove 12 Natural Walnut HPLLaminate

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Overview

The Groove planks are relatively simple to install thanks to their tongue and groove connections and the fact that planks can be cut on-site. Most commonly, the panels are either fixed directly to timber battens (walls), or to plywood strips which are in turn fixed to a MF system (ceilings). The planks are glued and pinned through the grooves, with mineral fibre in the cavity created to increase sound absorption. Fibre migration is controlled with an acoustically transparent black fleece integrated with panels.

Installation - walls

Softwood battens typically 50x50mm at 600mm centres

50mm Mineral fibre insulation

Panels pinned and glued through the groove

Staggered joints where necessaryStandard plank length is 3030mm.

*Planks can be cut on site.This should be done in one of the grooves when running the length of a plank.

*We can supply black head pins and a special gun to fire between the grooves.

*Contact us for dwg files of details and more specific guidance.

Walls

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Typical wall details

Typical Corner details

Mitred at the corner

Typical end details

Hardwood examples for Groove 12

Typical skirting details

No Skirting Hardwood/matching skirting

Typical fixing detail

T&G with pins through the grooves

Hardwood example for Groove 24-W Metal L-Profile

Metal L-ProfileHardwood corner detail

Black screws through the boards to softwood battens

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Installation - ceilings

Groove 24-W - simple installation to battens

50mm Mineral fibre insulation

Softwood battens typically 50x50mm at 600mm centres

3mm shadow gap at jointsStandard plank length is 3030mm.

Panels fixed through the groove with black screws

This illustrates a simple method of installing the Groove 24-W panels to a ceiling. This model is unique in having 8.5mm slits, which allow for black screws to fix the panels to softwood battens. Alternativelely, the sam principal can be applied with an MF system, to create a suspended ceiling. We can also provide access panels in this event.

The panels can be easily cut on site, and so working around curves is a simple task, and cutouts can be made for light fittings and services. Where Joints are required (panels are 3030mm in length, a 3mm shadow gap should be created, which creates a neat detail, as the core board in black underneath.

There is also the possibility to supply pre-formed rafts and baffles. Contact us for details on how these systems work.

Typical section - Groove 24-W ceiling (simple batten system)

Typical section - Groove 24-W ceiling (simple batten system)

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Specification examples

* Areas highlighted in blue are for editing to conform to project specifics

Specification example - ceilings

K13 RIGID SHEET FINE LININGS/PANELLINGTo be read with preliminaries/general conditions

TIMBER ACOUSTIC PANELS

• Drawing references: aaaa* Battens: Plywood strips* Size: 50x18mm * Spacing: 600mm centres * Fixing Method: glued and fixed to ceiling furring channels.

• Panelling:* Supplier: Stil Acoustics. Tel: 0161 36 2049. Email: [email protected] Web: www.stil-acoustics.co.uk* Product reference: Groove 12 T&G acoustic panels* Fire performance: BS 476: Part 6 & 7 Class O/Not required* Face finish: HPL reference.../White Oak veneer* Timber class: Best available/Remove for HPL* Substrate: 18mm black MDF* Sizes: 192mm wide X 19mm thickness and 3030 length (as standard)* Surface finish:Clear fire retardant lacquer at 10% sheen/ No finish to HPL laminate face* Acoustic Insulation: * Integrated acoustic fleece to rear* 50mm Mineral fibre at 48kg/m3* Acoustic Requirements: Should provide minimum Class C sound absorption according BS EN: 11654. Test reports should

be provided to confirm performance.* Moisture content at time of fixing: 6-10%* Method of fixing: Pinned through grooves into 50mm x 19mm plywood strips fixed at 600mm centres* Joint treatment: Cuts only within the grooves. No cuts within the strips

Specification example - walls

K13 RIGID SHEET FINE LININGS/PANELLINGTo be read with preliminaries/general conditions

TIMBER ACOUSTIC PANELS

• Drawing references: aaaa* Battens: Softwood battens* Size: 50x50mm * Spacing: 600mm centres * Fixing Method: Mechanically fixed.

• Panelling:* Supplier: Stil Acoustics. Tel: 0161 36 2049. Email: [email protected] Web: www.stil-acoustics.co.uk* Product reference: Groove 12 T&G acoustic panels* Fire performance: BS 476: Part 6 & 7 Class O/Not required* Face finish: HPL reference.../White Oak veneer* Timber class: Best available/Remove for HPL* Substrate: 18mm black MDF* Sizes: 192mm wide X 19mm thickness and 3030mm length (as standard)* Surface treatment: Clear fire retardant lacquer at 10% sheen/ No finish to HPL laminate face* Acoustic Insulation: * Integrated acoustic fleece to rear* 50mm Mineral fibre at 48kg/m3* Acoustic Requirements: Should provide minimum Class C sound absorption according BS EN: 11654. Test reports should

be provided to confirm performance.* Moisture content at time of fixing: 6-10%* Method of fixing: Pinned through grooves into 50x50mm softwood battens at 600mm centres* Joint treatment: Cuts only within the grooves. No cuts within the strips

• Skirting: to match veneer and finishing of the panels

Ducie HouseDucie StreetManchester

M1 2JW

+44(0)161 236 [email protected]

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