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2500x1406px_Rockfon-Blanka-dB-35

Rockfon Blanka® dB 35

Combines room to room sound insulation as well as good sound absorption for a flexible office layout where confidentiality is not an issue
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Product advantages

Made from a 25mm 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
Basic range of formats in semi-concealed and visible grid options
Light in weight, sound insulating tile, easy to install and cut, cleaned with a vacuum or damp cloth

Product Description

Stone wool tile
Visible side: smooth, deep matt, super white painted fleece
Rear side: high performance membrane
Durable painted edges
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Sound absorption details

Edge Thickness (mm) Min suspension height (mm) αw NRC Sound absorption class (ISO) Sound curve
A24 25 50 0.80 0.85 B
Sound curve
E15 25 60 0.80 0.85 B
Sound curve
E24 25 60 0.80 0.85 B
Sound curve

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

Other performances

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Room To Room Sound Insulation Room To Room Sound Insulation Dn,f,w = 35
Room-to-room sound insulation Dn,f,w is measured in accordance with ISO 10848-2.
Direct Sound Insulation Direct Sound Insulation Rw = 19
Sound reduction index Rw is measured in accordance with ISO 140-3.
Reaction To Fire Reaction To Fire A2-s1,d0,
Reaction to fire is classified in accordance with EN 13501-1.
Light reflection and light diffusion Light reflection and light diffusion Light reflection: 87% light reflection >99% light diffusion%. Light diffusion: >99%
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
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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Room-to-room sound insulation Dn,f,w is measured in accordance with ISO 10848-2.
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Sound reduction index Rw is measured in accordance with ISO 140-3.
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Reaction to fire is classified in accordance with EN 13501-1.
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Light reflection expressed in % is measured in accordance with ISO 7724-2.
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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.
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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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The surface of some ROCKFON products is specially treated to provide enhanced durability and dirt resistance.
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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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Colours

    • White
      White Light reflection: 87%
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Configure your product

This product has 6 variants in different sizes.

01 Edge

02 Size

03 Details

A24

product image

A24-edge tiles are a cost-effective solution that provides easy access to the installations hidden behind the ceiling. Tiles with an A-edge are also the perfect complement to concealed and semi-concealed ceilings (e.g. when used as a perimeter trim). They can be mounted in T24 grid systems. A-edge tiles are demountable.

illustration
Visible grid
Semi-concealed grid
Select length and width (mm)
Select thickness (mm)
Edge
Dimensions
Thickness

Full range

Edge Dimensions (mm) Thickness (mm) Weight (Kg/m2) Min suspension height (mm) Recommended installation system  
A24 1200 x 600 25 3.40 50

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 11
Area Per Pack 7.92 m2
A24 600 x 600 25 3.40 50

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 50 mm

Packaging

Pieces Per Pack 22
Area Per Pack 7.92 m2
E15 1200 x 600 25 3.40 60

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
E15 600 x 600 25 3.40 60

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
E24 1200 x 600 25 3.40 60

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
E24 600 x 600 25 3.40 60

Sound absorption details

αw 0.80
NRC 0.85
Sound absorption class B
Sound curve
Sound curve

Tile details

Minimum installation height 60 mm

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2

MS = Minimum Suspension

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Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 11
Area Per Pack 7.92 m2
Back

Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 50 mm
Easy access -

Packaging

Pieces Per Pack 22
Area Per Pack 7.92 m2
Back

Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
Back

Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
Back

Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 4.32 m2
Back

Sound absorption details

Sound curve
sound curve

Tile details

Minimum installation height 60 mm
Easy access -

Packaging

Pieces Per Pack 6
Area Per Pack 2.16 m2
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Videos

Video thumbnail, campaign video, db range, sound absorption, sound insulation
Video

dB range

Acoustician Per Trøjborg from Lloyds Register explains the duality of office acoustics.

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