# Rockfon ® Blanka® dB 41 – Acoustic ceilings

- Link: https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/
- Published: 2020-06-15T00:37:18+05:00
- Author: admin

#### 󠀁[Sound absorption](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1584184935113-f8282ace-23f2)󠁿

 Edge

 Thickness (mm)

 Suspension height (mm)

 αw

 NRC

 Sound absorption class (ISO)

 Weight (Kg/m2)

 A24

 35

 200

 0,90

 0,90

 A

 5,6

 D

 35

 200

 0,90

 0,90

 A

 5,6

 E15

 35

 200

 0,90

 0,90

 A

 5,6

 E24

 35

 200

 0,90

 0,90

 A

 5,6

## Sound curves

 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[

Sound absorption is measured in accordance with ISO 354.

Sound absorption data α_(p), α_(w) 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 A_(eq) expressed as m² per item.

#### 󠀁[Other characteristics](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1584184935129-9b4ee4e2-3786)󠁿

**Interior soundproofing**Dn,f,w = 41

**Direct sound insulation** Rw = 21

**Fire safety** A2-s1,d0, (EN 13501-1) Fire hazard class – KM2 (Federal Law No. 
123) (EN 13501-1)

**Reflection and scattering of light**light reflection 87% light scattering >99%

**Panel Appearance:** Super White Surface Whiteness (L): 94.5. Deep matt surface,
ideal for critical side lighting. Gloss: gloss level 0.8 at 85°. The panel's whiteness(
L) is tested according to ISO 7724 and measured on a scale from 1 (black) to 100(
white). Panel gloss is measured according to ISO 2813.

**Moisture resistance** Up to 100% relative humidity.
 No visible sagging at high
humidity.

 **Surface durability**

Increased strength and dirt resistance

 **Cleaning** Vacuum cleaner, soft cloth

 **Hygiene** Stone wool has no nutritional value, therefore it does not support 
the development of harmful microorganisms.

 **Environment**  Fully recyclable product

 **Indoor environment** A selection of Rockfon products have been awarded the M1(
Finland) particle emission class for building materials and the Danish Indoor Climate
Label (Denmark) – a symbol for the indoor climate of products with low particle 
emissions.

#### 󠀁[Edges and dimensions](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1584195041844-4a938332-96b7)󠁿

A24  600 x 600 x 35 mm

A24  1200 x 600 x 35 mm

D  600 x 600 x 35 mm

D  1200 x 600 x 35 mm

E15 600 x 600 x 35 mm

E15 1200 x 600 x 35 mm

E24 600 x 600 x 35 mm

E24 1200 x 600 x 35 mm

#### 󠀁[Documents](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1584195300154-d5cdc5c6-3355)󠁿

**Technical documentation, Ceiling and wall panels**

##### 󠀁[Rockfon Blanka® dB 41 | Technical documentation](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/-----2/ru-tile-datasheet-rockfon-blanka-db41_d_11_201910.pdf?f=20200402214004)󠁿

**Declaration of quality characteristics**

##### 󠀁[DoP-RFN-0169-041-1 – Rockfon Blanka® dB 41](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/--2/dop-rfn-0169-041-1-rockfon-blanka-db-41-2017-12-01.pdf?f=20200613220731)󠁿

**Product Sustainability Declaration**

##### 󠀁[Rockfon Blanka® dB 41 | Product Sustainability Declaration](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/---/ru-product-sustainability-declaration-rockfon-blanka-db-41_d_08_201914.pdf?f=20200402214005)󠁿

#### 󠀁[Sound absorption](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1595086925335-217456a6-2000)󠁿

 Edge

 Thickness (mm)

 Suspension height (mm)

 αw

 NRC

 Sound absorption class (ISO)

 Weight (Kg/m2)

 A24

 35

 200

 0,90

 0,90

 A

 5,6

 D

 35

 200

 0,90

 0,90

 A

 5,6

 E15

 35

 200

 0,90

 0,90

 A

 5,6

 E24

 35

 200

 0,90

 0,90

 A

 5,6

## Sound curves

 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[
 * [⌊Rockfon ® Blanka® dB 41 – Acoustic ceilings⌉⌊Rockfon ® Blanka® dB 41 – Acoustic
   ceilings⌉[

Sound absorption is measured in accordance with ISO 354.

Sound absorption data α_(p), α_(w) 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 A_(eq) expressed as m² per item.

#### 󠀁[Other characteristics](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1595086925639-7eb5c981-9420)󠁿

**Interior soundproofing**Dn,f,w = 41

**Direct sound insulation** Rw = 21

**Fire safety** A2-s1,d0, (EN 13501-1) Fire hazard class – KM2 (Federal Law No. 
123) (EN 13501-1)

**Reflection and scattering of light**light reflection 87% light scattering >99%

**Panel Appearance:** Super White Surface Whiteness (L): 94.5. Deep matt surface,
ideal for critical side lighting. Gloss: gloss level 0.8 at 85°. The panel's whiteness(
L) is tested according to ISO 7724 and measured on a scale from 1 (black) to 100(
white). Panel gloss is measured according to ISO 2813.

**Moisture resistance** Up to 100% relative humidity.
 No visible sagging at high
humidity.

 **Surface durability**

Increased strength and dirt resistance

 **Cleaning** Vacuum cleaner, soft cloth

 **Hygiene** Stone wool has no nutritional value, therefore it does not support 
the development of harmful microorganisms.

 **Environment**  Fully recyclable product

 **Indoor environment** A selection of Rockfon products have been awarded the M1(
Finland) particle emission class for building materials and the Danish Indoor Climate
Label (Denmark) – a symbol for the indoor climate of products with low particle 
emissions.

#### 󠀁[Edges and dimensions](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1595086926594-78eef4a4-5cf1)󠁿

A24  600 x 600 x 35 mm

A24  1200 x 600 x 35 mm

D  600 x 600 x 35 mm

D  1200 x 600 x 35 mm

E15 600 x 600 x 35 mm

E15 1200 x 600 x 35 mm

E24 600 x 600 x 35 mm

E24 1200 x 600 x 35 mm

#### 󠀁[Documents](https://uzbuild.com/en/rockfon-blanka-db-41-acoustic-ceilings/#1595086926685-2e793408-e4fc)󠁿

**Technical documentation, Ceiling and wall panels**

##### 󠀁[Rockfon Blanka® dB 41 | Technical documentation](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/-----2/ru-tile-datasheet-rockfon-blanka-db41_d_11_201910.pdf?f=20200402214004)󠁿

**Declaration of quality characteristics**

##### 󠀁[DoP-RFN-0169-041-1 – Rockfon Blanka® dB 41](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/--2/dop-rfn-0169-041-1-rockfon-blanka-db-41-2017-12-01.pdf?f=20200613220731)󠁿

**Product Sustainability Declaration**

##### 󠀁[Rockfon Blanka® dB 41 | Product Sustainability Declaration](https://cdn01.rockfon.ru/siteassets/commerce/ru/tiles/documents/---/ru-product-sustainability-declaration-rockfon-blanka-db-41_d_08_201914.pdf?f=20200402214005)󠁿