Alara-Lukagro acoustic doors have the most extensive sound insulation certifications in the Netherlands; this means we supply the biggest acoustic rotating doors that are officially tested and certified according to the latest European standards.

Airborne sound insulation tested and certified according to NEN-EN-ISO 140-3, measured on:

  • Door type AL-D/D45: single-leaf door (Peutz report A 1659-2);
  • Door types AL-D/D50 – D56H: single-leaf door with 3-point closure (Cauberg-Huygen report 20082140-04).

Spectral insulation values per acoustic door type

63 125 250 500 1k 2k 4k 8k Hz Rw,p (C, Ctr)
AL-D/D45 19 32 41 40 42 49 51 – dB 45 (-2, -4)
AL-D/D50 11 36 43 47 51 51 52 46 dB 50 (-1, -4)
AL-D/D52 17 36 46 49 52 54 58 52 dB 52 (-1, -4)
AL-D/D54 21 41 48 52 55 55 60 53 dB 54 (0, -3)
AL-D/D56 29 43 49 52 56 59 63 53 dB 56 (-1, -4)
AL-D/D56-H 34 45 48 52 55 55 57 – dB 54 (0, -2)

 

Difference between Rw and Rw,p

In the world of acoustics, many different values ​​are used to express acoustic resistance.

  • The Rw value is the result of the sound insulation of a door leaf tested in a laboratory. The practice is not pursued here and the aim is solely to determine the acoustic properties of the door leaf itself.
  • The Rw,p value is the result of a laboratory tested door set. This involves testing a functional door in a frame including seals. In this setup, the actual application is pursued.

Single figure values per acoustic door type

Ra house Ra bios Ra pop Ra Ultra bas Ra dance Ra back- ground music Ra road Ra rail Ra lucht- verkeer Ra industrie
AL-D/D45 31 36 40 24 36 42 35 44 43 37
AL-D/D50 24 33 38 17 31 43 29 50 48 31
AL-D/D52 29 37 42 23 36 47 34 52 50 36
AL-D/D54 34 42 46 27 41 51 39 54 53 41
AL-D/D56 41 46 50 34 46 54 45 56 54 47
AL-D/D56-H 45 47 51 39 49 53 49 54 53 50

 

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More information?

Looking for more information about the insulation values of our acoustic doors? Or do you want more informatie about the right soundproof door for your project? Contact our specialist.

RvD-21423-141421@4x
Ronald van Ditshuizen Account Manager +31 (0) 184 820 764 ronald@alara-lukagro.com
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