Rockfon® Koral

Attractive white, micro-textured surface for various applications
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Colour

White

ColourWhite
Colour groupWhites
NCSNCS S 0500-N
Light reflection86

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1

Edge

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Select an edge
A24
A15

Case studies featuring Rockfon® Koral

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Sound absorption details

Practical Sound Absorption Coefficient (αp)
Edge Thickness Suspension height 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz Sound absorption class αw NRC
A24, A15 15mm 200mm 0.50 0.80 1.00 0.90 0.95 0.85 A 0.95 0.90
A24, A15 15mm 50mm 0.10 0.45 0.85 1.00 0.95 0.80 C 0.75 0.80
A24, A15 20mm 200mm 0.55 0.80 1.00 0.90 0.95 0.85 A 0.95 0.90
E15, E24 15mm 200mm 0.45 0.75 0.95 0.85 0.95 1.00 A 0.95 0.90

Sound absorption is measured in accordance with ISO 354.

Sound absorption data αp, αw and absorption class are calculated in accordance with ISO 11654. Sound absorption properties of islands and baffles are quantified by the equivalent sound absorption area Aeq expressed as m² per item.

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Sound curve
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Sound curve
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Sound curve
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Sound curve

Other performances

Reaction To Fire Reaction To Fire A1 (EN 13501-1)
Reaction to fire is classified in accordance with EN 13501-1.
Fire Resistance Fire Resistance The fire resistant properties of stone wool ensure Rockfon ceiling tiles provide fire protection in construction. The fire protection properties of Rockfon ceilings have been tested and classified in accordance with European norm EN 13501-2 and/or national norms depending on requirements in national building codes.
Some sizes and edge details of Rockfon Koral can be used with various Chicago Metallic grids and Rockfon systems to create a 30 and/or 60 minutes fire protecting ceiling in accordance with BS 476 Part 21 and Part 23. They can also be used to create a 30 minutes fire protecting membrane ceiling (integrity only) in accordance with BS 476 Part 22.
The stone wool core of ROCKFON products is non-combustible with a melting point of more than 1000°C and provides fire protection. Some ROCKFON ceilings have been tested and classified in accordance with European norm EN 13501-2 and/or national norms.
Light reflection and light diffusion Light reflection and light diffusion 86%
Light reflection expressed in % is measured in accordance with ISO 7724-2.
Humidity And Sag Resistance Humidity And Sag Resistance Up to 100% RH.
No visible deflection in high humidity
ROCKFON ceiling tiles are dimensionally stable even at humidity levels of up to 100% relative humidity and can be installed at all temperatures ranging from 0°C to 40°C. They can be installed during the very early stage of the build (when windows are not fully sealed). Their lightweight yet stable non-hygroscopic character minimises the final weight of the fully-installed ceiling. ROCKFON ceiling tiles are predominantly classified as Class 1/C/0N in accordance with EN 13964. Certain module sizes (width above 700mm) are Class 2/C/0N.
Cleaning Cleaning Vacuum, Damp cloth
Vacuum: The surface can be vacuum cleaned with a soft brush attachment. Damp cloth: The surface can be cleaned using a damp cloth or sponge with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine. This may render the surface slightly shinier, so we recommend cleaning the entire surface evenly.
Hygiene Hygiene Stone wool provides no sustenance to microorganisms
Stone wool provides no sustenance to the following microorganisms tested in accordance with JIS Z 2801:2000 and ASTM C 1338-96: – Escherichia coli – Staphylococcus aureus – Methicillin-resistant staphylococcus aureus (MRSA) – Stachybotrys chartarum – Penicillium brevicumpactum – Alternaria tenuissima – Aspergillus niger – Sporobolomyces roseum – Rhodotorula rubra
Environment Environment Fully recyclable stone wool
Indoor Environment Indoor Environment A selection of Rockfon products have been awarded the Finnish M1 emission classification for building materials and the Danish Indoor Climate Label for low emission products
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Reaction to fire is classified in accordance with EN 13501-1.
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The stone wool core of ROCKFON products is non-combustible with a melting point of more than 1000°C and provides fire protection. Some ROCKFON ceilings have been tested and classified in accordance with European norm EN 13501-2 and/or national norms.
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Light reflection expressed in % is measured in accordance with ISO 7724-2.
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ROCKFON ceiling tiles are dimensionally stable even at humidity levels of up to 100% relative humidity and can be installed at all temperatures ranging from 0°C to 40°C. They can be installed during the very early stage of the build (when windows are not fully sealed). Their lightweight yet stable non-hygroscopic character minimises the final weight of the fully-installed ceiling. ROCKFON ceiling tiles are predominantly classified as Class 1/C/0N in accordance with EN 13964. Certain module sizes (width above 700mm) are Class 2/C/0N.
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Vacuum: The surface can be vacuum cleaned with a soft brush attachment. Damp cloth: The surface can be cleaned using a damp cloth or sponge with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine. This may render the surface slightly shinier, so we recommend cleaning the entire surface evenly.
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Stone wool provides no sustenance to the following microorganisms tested in accordance with JIS Z 2801:2000 and ASTM C 1338-96: – Escherichia coli – Staphylococcus aureus – Methicillin-resistant staphylococcus aureus (MRSA) – Stachybotrys chartarum – Penicillium brevicumpactum – Alternaria tenuissima – Aspergillus niger – Sporobolomyces roseum – Rhodotorula rubra
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Full range

Edge Dimensions (mm) Thickness (mm) Weight (Kg/m2) Min. suspension height (mm) Recommended installation system  
A15 600 x 600 15 2.00 50 Rockfon® System T15 A

Recommended installation system

Visible grid ceiling system Rockfon® System T15 A Ceiling system with a 15mm wide visible grid with A edge tiles

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 32
Area Per Pack 11.52 m2
A15 600 x 600 20 2.30 50 Rockfon® System T15 A

Recommended installation system

Visible grid ceiling system Rockfon® System T15 A Ceiling system with a 15mm wide visible grid with A edge tiles

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 24
Area Per Pack 8.64 m2
A24 1200 x 600 15 2.00 50 Rockfon® System T24 A
Rockfon® System T24 A, E ECR

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
A24 1200 x 600 20 2.30 50 Rockfon® System T24 A
Rockfon® System T24 A, E ECR

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 12
Area Per Pack 8.64 m2
A24 600 x 600 15 2.00 50 Rockfon® System T24 A
Rockfon® System XL T24 A
Rockfon® System T24 A, E ECR

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Visible grid ceiling system Rockfon® System XL T24 A Ceiling system with a 24mm wide visible grid with A edge tiles.
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 32
Area Per Pack 11.52 m2
A24 600 x 600 20 2.30 50 Rockfon® System T24 A
Rockfon® System T24 A, E ECR
Rockfon® System XL T24 A

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas
Visible grid ceiling system Rockfon® System XL T24 A Ceiling system with a 24mm wide visible grid with A edge tiles.

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 24
Area Per Pack 8.64 m2
E15 1200 x 600 15 2.20 50 Rockfon® System T15 E

Recommended installation system

Semi-concealed ceiling system Rockfon® System T15 E Ceiling system with a 15mm wide recessed grid with semi-concealed E edge tiles

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
E15 600 x 600 15 2.20 50 Rockfon® System T15 E

Recommended installation system

Semi-concealed ceiling system Rockfon® System T15 E Ceiling system with a 15mm wide recessed grid with semi-concealed E edge tiles

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 16
Area Per Pack 5.76 m2
E24 1200 x 600 15 2.20 58 Rockfon® System T24 E
Rockfon® System T24 A, E ECR

Recommended installation system

Semi-concealed ceiling system Rockfon® System T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 58 mm

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
E24 600 x 600 15 2.20 58 Rockfon® System T24 E
Rockfon® System XL T24 E
Rockfon® System T24 A, E ECR

Recommended installation system

Semi-concealed ceiling system Rockfon® System T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles
Semi-concealed ceiling system Rockfon® System XL T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles.
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

αw 0.95
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 58 mm

Packaging

Pieces Per Pack 16
Area Per Pack 5.76 m2

MS = Minimum Suspension

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Recommended installation system

Visible grid ceiling system Rockfon® System T15 A Ceiling system with a 15mm wide visible grid with A edge tiles

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 32
Area Per Pack 11.52 m2
Back

Recommended installation system

Visible grid ceiling system Rockfon® System T15 A Ceiling system with a 15mm wide visible grid with A edge tiles

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 24
Area Per Pack 8.64 m2
Back

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
Back

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 12
Area Per Pack 8.64 m2
Back

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Visible grid ceiling system Rockfon® System XL T24 A Ceiling system with a 24mm wide visible grid with A edge tiles.
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 32
Area Per Pack 11.52 m2
Back

Recommended installation system

Visible grid ceiling system Rockfon® System T24 A Ceiling system with a 24 mm wide visible grid with A edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas
Visible grid ceiling system Rockfon® System XL T24 A Ceiling system with a 24mm wide visible grid with A edge tiles.

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 24
Area Per Pack 8.64 m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System T15 E Ceiling system with a 15mm wide recessed grid with semi-concealed E edge tiles

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System T15 E Ceiling system with a 15mm wide recessed grid with semi-concealed E edge tiles

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 16
Area Per Pack 5.76 m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

Tile details

Minimum installation height 58 mm
Easy access -

Packaging

Pieces Per Pack 16
Area Per Pack 11.52 m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles
Semi-concealed ceiling system Rockfon® System XL T24 E Ceiling system with a 24mm wide visible grid with semi-concealed E edge tiles.
Humid environments Rockfon® System T24 A, E ECR Versatile and simple ceiling system suitable for humid and harsh indoor environments such as swimming pools, kitchens and sanitary areas

Sound absorption details

Tile details

Minimum installation height 58 mm
Easy access -

Packaging

Pieces Per Pack 16
Area Per Pack 5.76 m2
Back

Downloads

documents

 

 

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Rockfon® Koral | Datasheet
Rockfon® Koral | Datasheet

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Environmental Product Declaration (EPD)
Environmental Product Declaration (EPD)

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Rockfon® Koral™ | BIM file
Rockfon® Koral™ | BIM file

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Rockfon® System T15 E | Installation Guide
Rockfon® System T15 E | Installation Guide

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pdf
Rockfon® System T15 A | Installation Guide
Rockfon® System T15 A | Installation Guide

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pdf
Rockfon® System XL T24 E | Installation Guide
Rockfon® System XL T24 E | Installation Guide

pdf
Rockfon® System XL T24 A | Installation Guide
Rockfon® System XL T24 A | Installation Guide

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pdf
Rockfon® System T24 A, E ECR | Installation Guide
Rockfon® System T24 A, E ECR | Installation Guide

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pdf
pdf
pdf
pdf
pdf
Rockfon® System T24 E | Installation Guide
Rockfon® System T24 E | Installation Guide

pdf
pdf
Rockfon® System T24 A | Installation Guide
Rockfon® System T24 A | Installation Guide

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pdf
pdf
pdf
E-edge - combined w gypsum vertical bulkhead | CAD
E-edge - combined w gypsum vertical bulkhead | CAD

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Sprinklers | CAD
Sprinklers | CAD

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Uplight on floating ceiling | CAD
Uplight on floating ceiling | CAD

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E-edge island - RLUS50-channel-finishing | CAD
E-edge island - RLUS50-channel-finishing | CAD

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A-edge island - RL-US50-channel-finishing | CAD
A-edge island - RL-US50-channel-finishing | CAD

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A-edge - angle-trim-vertical-bulkhead | CAD
A-edge - angle-trim-vertical-bulkhead | CAD

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A-edge special column ring - flexible perimeter trim | CAD
A-edge special column ring - flexible perimeter trim | CAD

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A-edge - gypsum level shift - 90 degree | CAD
A-edge - gypsum level shift - 90 degree | CAD

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A-edge - 10mm space between tile and column | CAD
A-edge - 10mm space between tile and column | CAD

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A-edge - angle trim - 90 degree | CAD
A-edge - angle trim - 90 degree | CAD

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E+A-edge - concrete TT beams | CAD
E+A-edge - concrete TT beams | CAD

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DoP-RFN-0020-041-5 - Rockfon® Koral
DoP-RFN-0020-041-5 - Rockfon® Koral

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Design for Schools | Education Guide
Design for Schools | Education Guide

Schools How acoustic solutions make a difference to focus and wellbeing in schools.

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Corelli College | Education case study
Corelli College | Education case study

The complex is designed to increase participation in sport both within the school and the wider community. Rockfon ceiling solutions were installed throughout to provide the required acoustic control and satisfy BB93 Building Regulation standards.

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Elgin Academy | Education case study
Elgin Academy | Education case study

Moray Council specified compliance with Building Bulletin 93 throughout the school, and a wide selection of Rockfon ceiling and wall solutions have been installed to achieve this.

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Keith Primary School | Education case study
Keith Primary School | Education case study

Rockfon acoustic ceiling and wall solutions have been installed throughout the brand new purpose-built Keith primary school in Moray to meet specific requirements for acoustic control, aesthetics and impact resistance.

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St Joseph’s Secondary School, County Clare | Education case study
St Joseph’s Secondary School, County Clare | Education case study

Set in a picturesque village in County Clare, St Joseph’s Secondary School is a new state-of-the art learning facility created as part of an ambitious multi-million Schools Bundle PPP Programme - Bundle 4 Project. Rockfon ceiling solutions were installed to help create the ideal conditions for learning and enhance the architect’s contemporary design.

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