Tonga® dB 41 E

Eurocoustic Tonga dB 41 E environmental image

Office

Healthcare

Education

Tonga® dB 41 E ceilings offer a perfect balance between sound absorption and sound insulation. Ideal in places where acoustic is essential.

• Room to room sound insulation: Dnfw = 41 dB
• Sound absorption: αw = 0.90
• Rw = 20 dB, according to ISO 10140-2

See the documentation

Characteristics

αw=0.9 classe=A NRC=0.85

α_p, Practical sound absorption coefficient

Frequency Hz

	D_nfw Weighted normalized flanking level difference, ISO 10848-2	CAC dB Ceiling Attenuation Class, ASTM 1414, ASTM E413	R_w Weighted sound reduction index, ISO 10140-2
	41 (-3; -8)	41	20 (-2; -2)
+ Acoustipan®	52 (-2; -9)	55	-

Property	White 09
Light Reflectance (LRV%)	87%
Whiteness (L*)	94%
Gloss (85°)	1.2

Standard	Class
EN 13501-1	A2-s1,d0

Class C, relative humidity 95% and 30°C, according to EN 13964:2014.

Implementation and maintenance


• You are advised to ensure that air can circulate between the rooms and the plenum to balance the temperature and pressures on each side of the ceiling.
• Tiles can be cut with a craft knife without generating any noise or dust.
• The direction in which the panels should be installed is indicated on the back of the panels.
• Contact us if any mineral wool is to be laid in the plenum.

The ceiling surface does not retain dust, which makes the panels easier to clean. The ceiling can be cleaned using a light brush or a vacuum cleaner. This type of cleaning will help extend the service life of the ceilings.

Certifications

EUCEB	Eurocoustic panels are manufactured using mineral wool certified by the European Certification Board for mineral wool products (EUCEB), which independently confirms that mineral wool is produced in conformity with the Note Q of European Regulation (EC) No 1272/2008 and therefore classification as a carcinogen does not apply.
REACH	Eurocoustic products comply with the REACH regulation of the European Chemicals Agency and therefore do not contain any Substances of Very High Concern (SVHC) with potential negative impacts on human health or the environment above 100ppm.


Minimum recycled content	60%
Recyclability	Fully recyclable

Eurocoustic ceilings are CE marked according to the European harmonized standard EN13964:2014. CE marked construction products are covered by a Declaration of Performance (DOP) which enables customers and users to easily compare performance of products available on the European market.