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    Westminster · SW1·

    Grade II listed flat in Westminster: 48dB noise reduction

    How we cut 24-hour bus route from 82dB to 34dB using 10.8mm Stadip Silence with a 150mm decoupled air gap.

    Before
    82 dB
    After
    34 dB
    Reduction
    48 dB

    Installation specification

    Acoustic glass
    10.8mm Stadip Silence
    Air gap
    150mm decoupled cavity
    Windows treated
    4 openings
    Install time
    2 days on site

    Verified outcome

    Conservation officer approved; no external alteration required.

    "Heritage consent was smooth and the noise drop is beyond what we hoped for."

    — James P., Westminster SW1

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