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Rockfon Blanka® dB 41

Combines enhanced room to room sound insulation as well as a high level of sound absorption (Class A) for a flexible and quiet office layout
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Download Datasheet
Download Datasheet
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Made from a 35mm stone wool core with a high performance membrane on the back which reduces the transmission of noise from room to room
A smooth, deep matt, super white surface finish with enhanced durability making it more resistant to dirt and everyday wear and tear
Wide range of dimensions in concealed, semi-concealed and visible grid options
Light in weight, sound insulating tile, easy to install and cut, cleaned with a vacuum or damp cloth
Stone wool tile
Visible side: smooth, deep matt, super white painted fleece
Rear side: high performance membrane
Durable painted edges

Colour

White

ColourWhite
Colour groupWhites
NCSNCS S 0500-N
Light reflection87

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Quantity:
1

Edge

Select an edge
Select an edge
D
E24
A24

Case studies featuring Rockfon Blanka® dB 41

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Recommended application areas

Office

Cellular Office
Meeting Room
Corridor

Education

Classroom
Library
Music Room
Corridor

Healthcare

Consulting Room
Laboratory
Treatment Room
Corridor

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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
D, E15, E24, A24, D/AEX 35mm 200mm 0.40 0.60 0.90 0.95 1.00 1.00 A 0.90 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

Other performances

Room To Room Sound Insulation Room To Room Sound Insulation Dn,f,w = 41
Room-to-room sound insulation Dn,f,w (C;Ctr) is measured in accordance with ISO 10848-2.
Direct Sound Insulation Direct Sound Insulation Rw = 21
Sound reduction index Rw (C;Ctr) is measured in accordance with ISO 140-3.
Reaction To Fire Reaction To Fire A2-s1,d0 (EN 13501-1)
Reaction to fire is classified in accordance with EN 13501-1.
Light reflection and light diffusion Light reflection and light diffusion 87% light reflection >99% light diffusion
Light reflection expressed in % is measured in accordance with ISO 7724-2.
Visual Appearance Visual Appearance Super white surface
L value: 94.5.
Deep matt surface, perfect in critical side-light
Gloss: 0.8 gloss unit at 85° angle
The whiteness (L value) of the product is tested in accordance with ISO 7724 and measured on a scale from 1 (black) to 100 (white).
The gloss of the product is tested in accordance with ISO 2813.
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.
Surface Durability Surface Durability Enhanced durability and dirt resistance.
The surface of some ROCKFON products is specially treated to provide enhanced durability and dirt resistance.
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
Thermal Insulation Thermal Insulation Thermal conductivity: λD = 40 mW/mK
Thermal resistance: R = 0.85 m2K/W
The thermal conductivity of products with a thickness ≥ 30mm is measured in accordance with EN 12667 and expressed in mW/mK. Thermal resistance is expressed in m²K/W.
Back
Room-to-room sound insulation Dn,f,w (C;Ctr) is measured in accordance with ISO 10848-2.
Back
Sound reduction index Rw (C;Ctr) is measured in accordance with ISO 140-3.
Back
Reaction to fire is classified in accordance with EN 13501-1.
Back
Light reflection expressed in % is measured in accordance with ISO 7724-2.
Back
The whiteness (L value) of the product is tested in accordance with ISO 7724 and measured on a scale from 1 (black) to 100 (white).
The gloss of the product is tested in accordance with ISO 2813.
Back
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.
Back
The surface of some ROCKFON products is specially treated to provide enhanced durability and dirt resistance.
Back
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.
Back
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
Back
Back
Back
The thermal conductivity of products with a thickness ≥ 30mm is measured in accordance with EN 12667 and expressed in mW/mK. Thermal resistance is expressed in m²K/W.
Back

Full range

Edge Dimensions (mm) Thickness (mm) Weight (Kg/m2) Min. suspension height (mm) Recommended installation system  
A24 1200 x 600 35 5.60 50 Rockfon® System 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

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
A24 600 x 600 35 5.60 50 Rockfon® System 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

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 12
Area Per Pack 4.32 m2
D 600 x 600 35 5.60 112 Rockfon® System XL T24 D

Recommended installation system

Concealed ceiling system Rockfon® System XL T24 D Elegant, continuous ceiling expression

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 112 mm

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
D/AEX 1200 x 300 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
D/AEX 1200 x 600 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
D/AEX 1500 x 300 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
D/AEX 1500 x 600 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
D/AEX 1800 x 300 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
D/AEX 1800 x 600 35 5.60 65 Rockfon® System Bandraster Dznl/AEX

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 65 mm

Packaging

Pieces Per Pack
Area Per Pack m2
E15 1200 x 600 35 5.60 60 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 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
E15 600 x 600 35 5.60 60 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 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
E24 1200 x 600 35 5.60 60 Rockfon® System T24 E

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

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
E24 600 x 600 35 5.60 60 Rockfon® System T24 E

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

Sound absorption details

αw 0.90
NRC 0.90
Sound absorption class A

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2

MS = Minimum Suspension
When installing Blanka dB41 tiles with D edge in System XL T24 D an additional wire suspension hanger shall be placed on all 1800mm cross tees. The additional hanger shall be positioned approximately 550mm from a main runner.

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

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 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

Sound absorption details

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 12
Area Per Pack 4.32 m2
Back

Recommended installation system

Concealed ceiling system Rockfon® System XL T24 D Elegant, continuous ceiling expression

Sound absorption details

Tile details

Minimum installation height 112 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack m2
Back

Recommended installation system

Semi-concealed ceiling system Rockfon® System Bandraster Dznl/AEX A linear, wide exposed grid for use with various sized planks

Sound absorption details

Tile details

Minimum installation height 65 mm
Easy access -

Packaging

Pieces Per Pack
Area Per Pack 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 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 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 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 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

Sound absorption details

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 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

Sound absorption details

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
Back

Downloads

documents

 

 

pdf zip dwg
Rockfon Blanka® dB 41 | Datasheet
Rockfon Blanka® dB 41 | Datasheet

pdf
Rockfon® System Bandraster Dznl/AEX | Installation Guide
Rockfon® System Bandraster Dznl/AEX | Installation Guide

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

pdf
Rockfon Blanka® dB 41 | BIM file
Rockfon Blanka® dB 41 | BIM file

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

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

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

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

dwg
pdf
A-edge - Rockfon Flectoline | CAD
A-edge - Rockfon Flectoline | CAD

dwg
pdf
D-edge - upstand trim - 90 degree | CAD
D-edge - upstand trim - 90 degree | CAD

dwg
pdf
D-edge - concrete D2 T finishing | CAD
D-edge - concrete D2 T finishing | CAD

pdf
dwg
D-edge - I steel beam D2 T finishing | CAD
D-edge - I steel beam D2 T finishing | CAD

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

dwg
pdf
Sprinklers | CAD
Sprinklers | CAD

pdf
dwg
Uplight on floating ceiling | CAD
Uplight on floating ceiling | CAD

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

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

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

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

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

pdf
dwg
DoP-RFN-0169-041-1 - Rockfon Blanka® dB 41
DoP-RFN-0169-041-1 - Rockfon Blanka® dB 41

pdf
icon
Rockfon Blanka® | Brochure
Rockfon Blanka® | Brochure

Some whites are brighter than others

pdf
icon
Didsbury High School | Education case study
Didsbury High School | Education case study

Rockfon ceilings were specified to suit particular needs throughout the school.

pdf
icon
Sound insulation with dB tiles | Brochure
Sound insulation with dB tiles | Brochure

By offering the best combination of sound absorption and sound insulation, our dB acoustic ceiling tile range provide a documented noise control solution that is music to your ears.

pdf

Videos

Video thumbnail, installation video, rockfon system t24 a
Video

Rockfon® System T24 A™ | Installation video

How to install Rockfon® System T24 A™

Video thumbnail, installation video, rockfon system Ultraline E
Video

Rockfon® System Ultraline E™

How to install Rockfon® System Ultraline E™

Back
20211021 RW-RF PHO 8101
MyRockfon

MyRockfon

MyRockfon is a loyalty program for dryliners, fixers and ceiling installers in the UK and Ireland.

We provide customers with a complete acoustic ceiling system offering, combining sound absorbing ceiling tiles and wall panels with suspension grid systems and accessories.

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