Sound proof windows with Secondary Glazing

Measuring Sound

Decibels (dB) The ear has the remarkable ability to handle an enormous range of sound levels. In order to express levels of sound meaningfully in numbers that are more manageable, a logarithmic scale is used, rather than a linear one. This scale is the decibel scale. Zero decibels (0 dB) is the quietest sound audible to a healthy human ear. From there, every increase of 3 dB represents a doubling of sound intensity or acoustic power. we offer Secondary Glazing For Period & Listed Windows.
The Air Gap
The air gap is the space between the existing primary window and the secondary window. A larger air gap will make a huge difference to the level of noise insulation as the velocity of the traveling sound is diminished over the distance it travels between 2 panes.
The Glass
Thicker glass has greater mass and will provide better performance. The acoustic laminate glass will show further improvements, particularly at higher frequencies as it provides further dampening. Ideally, the secondary glazing in London should have a different thickness of glass to the primary window to avoid sympathetic resonance which will increase noise transmission.
High Performance Soundproof Windows | Secondary Glazing London
6.4mm SGG STADIP and SGG STADIP PROTECT are made up of two or more sheets of glass bonded together with a plastic interlayer. After the plastic has been placed between the glass sheets, the whole assembly is subjected to heat and pressure. This results in the complete adhesion of the vinyl and the glass.

High Performance Soundproof Windows | Secondary Glazing London

6.4 mm Is commonly used in domestic applications to combat:
  • Traffic noise,
  • Flight path noise pollution
  • Screaming & shouting
  • Air conditioning & ventilation noise
8mm to 16.8mm can be installed in Commercial secondary glazing systems in the UK where excessive noise is a problem eg:
  • Live music
  • Loud building sites & drilling
  • Train Lines within short distances

Reasonable Noise Levels & Expected reductions with Secondary Glazing

Below are some examples of reasonable noise levels in everyday environments. If you are experiencing higher noise levels than stated below, secondary glazing installation could drastically improve your living conditions.

35%Bedrooms 30 – 35 dB

35%Music rooms 30 – 35 dB

60%Living rooms 30 – 40 dB

60%Classrooms 35 – 40 dB

60%Libraries 35 – 40 dB

85%Open offices 45 – 50 dB

Primary GlassAir GapSecondary GlassdB Reduction
6.4mm Stadip40 – 42 dB
6.4mm Stadip42 – 45 dB
Commercial Grade Secondary Glazing
8mm Stadip45 – 47 dB
8mm Stadip47 – 50 dB
16.8mm Stadip50 – 53 dB
16.8mm Stadip53 – 55 dB

Reasonable Noise Levels & Sound Proofing For Commercial Work Spaces

We are often contacted to improve sound proofing via building windows for workspaces in and around London. With most buildings being exposed to main roads and busy areas, means that workspaces are often disrupted with unwanted noise. This reduces concentration and can become quiet distressful over long periods of time. Secondary Glazing is the perfect solution to reducing noise in your home or work environment
Bellow is a example of secondary glazing in a commercial building in the heart of the city The secondary Glazing Installation reduced 80% of the noise they were experiencing.
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Secondary glazing installed in commercial building

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Installation reduced 80% of noise experienced

Contact us in regards to any sound proofing requirements you may have. We would love to help improve your living or working conditions

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