Perforation designs

The secret to acoustic comfort with Knauf DANOLINE ceilings lies in the perforation. By punching holes in a gypsumboard, we give the material an ability to absorb sound. And add an aesthetic character to the material, too. The different geometries of the perforation holes define the degree of sound absorption and sound diffusion.

Unity perforations

The series of Unity perforations extend to the edge of the tile. This means that the finished ceiling surfaces appears smooth and unified surface – thus the name Unity. The Unity series offers a range of perforation geometries to cater to your design specifications.

  • Unity 3 Unity 3

    Shape: Square holes
    Size: 3.5x3.5mm Distance c/c: 8.33mm
    Perforation %: 17.2

    Alpha value (αw): 0.80-0.95
    NRC value: 0.80-0.90

    Contur+ 
    Belgravia+
    Plaza+ 
    Rold12 
    DANOloft® 

  • Unity 4 Unity 4

    Shape: Round holes
    Size: Ø4mm Distance c/c: 10mm
    Perforation %: 12.2

    Alpha value (αw): 0.70-0.75
    NRC value: 0.75-0.80

    Contur+
    Belgravia+
    Plaza+ 

  • Unity 6 Unity 6

    Shape: Round holes
    Size: Ø6mm Distance c/c: 15mm
    Perforation %: 11.9

    Alpha value (αw): 0.65-0.70
    NRC value: 0.60-0.70

    Contur+ 
    Belgravia+
    Plaza+ 

  • Unity 9 Unity 9

    Shape: Square holes
    Size: 9x9mm Distance c/c: 20mm
    Perforation %: 18.9

    Alpha value (αw): 0.75-0.90
    NRC value: 0.80-0.85

    Contur+
    Belgravia+
    Plaza+

  • Unity 8/15/20 Unity 8/15/20

    Shape: Round holes
    Size: Ø8, Ø15, Ø20mm
    Perforation %: 10.8

    Alpha value (αw): 0.55-0.60
    NRC value: 0.55

    Contur+
    Belgravia+
    Plaza+

Framed perforations

Our series of framed designs come with different perforation shapes. They are characterized by an unperforated frame around the edge of the tile.

  • Globe Globe

    Shape: Round holes
    Size: Ø6mm
    Distance c/c: 15mm
    Perforation %: 10.2 (10.6*)

    Alpha value (αw): 0.55-0.60
    NRC value: 0.60-0.80

    Contur
    Belgravia
    Plaza
    Corridor

    *perforation percentage for Corridor ceiling tiles

  • Quadril Quadril

    Shape: Square holes
    Size: 12x12mm
    Distance c/c: 30mm
    Perforation %: 13 (14.2*)

    Alpha value (αw): 0.55-0.75
    NRC value: 0.55-0.80

    Contur
    Belgravia
    Plaza
    Corridor

    *perforation percentage for Corridor ceiling tiles

  • Micro Micro

    Shape: Square holes
    Size: 3x3mm
    Distance c/c: 8.33mm
    Perforation %: 10.2

    Alpha value (αw): 0.65-0.75
    NRC value: 0.60-0.75

    Contur
    Belgravia
    Plaza
    Corridor

  • Tangent Tangent

    Shape: Oblongue holes
    Size: 4x14mm
    Distance c/c: 10/20mm
    Perforation %: 21.3

    Alpha value (αw): 0.55-0.95
    NRC value: 0.65-0.95

    Belgravia
    Plaza

Shutterstock 1032696151

100% recyclability

Our acoustic gypsum ceiling and wall tiles are made from natural, sustainable materials that are easily separated and fully recycled at the end of their lifespan. They deliver a timeless look and robust performance that lasts a lifetime. What’s more, they can be repainted as often as required, with no impact on acoustic performance, and their properties will not diminish for at least 50 years.

More about sustainability