• PhoneStar Acoustic System for Mass Timber Mid Floors

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    A new era of soundproofing

    PhoneStar is a revolutionary soundproofing board, made of a combination of sand and cardboard. Designed to reduce both impact and airborne sound, while adding thermal mass to structures.

    The decoupling fleece acts as a decoupling layer between PhoneStar boards and the structural floor, separating the two hard surfaces.

    Noise reduction

    Mid-floor construction Acoustic Build Up Acoustic Build Up Height
    Floor Covering IIC STC Ln,w Rw Notes
    126mm CLT no ceiling

    FloorMuffler US

    Phonestar Tri

    5mm Plywood

    22mm

    N/A 44 40 66 (0)  40 (0 ; -3)   
    126mm CLT no ceiling

    FloorMuffler US

     Phonestar Tri x2 layers

    5mm Plywood

    37mm

    N/A 47 42 63 (0)  42 (0 ; -3)   
    126mm CLT no ceiling

    FloorMuffler US

    Phonestar Tri x2 layers

    5mm Plywood

    37mm

    5mm Native Vinyl  48 44  62 (0) 44 (-1 ; -4)   
    126mm CLT no ceiling

    GenieMat FF17

    Phonestar Tri

    18mm Plywood

    50mm

    N/A 42 45 67 (1) 45 (-2 ; -7)  
    126mm CLT no ceiling

    GenieMat FF17

    Phonestar Tri x2 layers

    5mm Plywood

    65mm

    N/A 42 47 64 (1) 47 (-2 ; -7)  
    126mm CLT no ceiling

    20mm Wolf Miwo

    Phonestar Tri

    18mm Plywood

    53mm

    N/A 43 48 64 (1) 48 (-2 ; -8)  
    126mm CLT no ceiling

    20mm Wolf Miwo

     Phonestar Tri x2

    18mm Plywood

    68mm

    N/A 46 49 61 (2) 49 (-3 ; -8)  
    126mm CLT no ceiling 

    Adhesive

    Phonestar Tri

    5mm Plywood

    20mm

    N/A 38 35 72 (-1)

    35 (0 ; -2  
    140mm CLT no ceiling

    PhoneStar Tri x2 layers

     MiWo

    50mm

    N/A 52 55 56 54  
    148mm CLT no ceiling

    PhoneStar 25

     MiWo

    PhoneStar Tri x2 layers

    75mm

    N/A 56 59 52 58  
    140mm CLT with drop ceiling

    PhoneStar Tri x2 layers

    MiWo

    50mm

    N/A 64 70 40 71 Ceiling Detail: 60mm timber battens, 25mm steel profiles with TPS spring clips, 40mm mineral wool, PhoneStar Tri, Plasterboard

    System documentation

    Acoustic test reports for all referenced results are available on request. 

    Case Studies and Inspiration

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