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Noise Reducing Windows – Secondary Glazing

Nov 4, 2016 | Architects & Commercial, News |

Traffic noise coming through windows.

Do you have a noise problem? Granada’s Secondary Glazing can help.

In this modern era, we live our lives surrounded by noise. Our commute to work consists of noisy engines and busy roads. Whilst at work we are submitted to large amounts of background noise and noise breeching windows from the outside environment. At the end of the day when we want/need to relax in our homes, noise from groups of people on the street, passing cars and in extreme circumstances close by trains or planes are causing a nuisance. If you want to take action and reduce noise within your home our noise reducing windows can help.

Contrary to popular belief there is no decibel limit that needs to be exceeded for noise to be categorised as a “statutory nuisance”. The European Union has set 65dB as the maximum acceptable limit of noise a person can tolerate on a daily basis, while levels between 70-125dB can be painful (a passing motorcycle may reach 100dB), above that, outright unbearable.

This raises the question of how can we reduce noise and live in peace and quiet?

Secondary Glazing can help reduce noise levels breeching primary window systems including single glazing, double glazing and even triple glazing. In some cases, secondary glazing can reduce street sound by up to 80%.

Noise reducing windows – What is the secret of Secondary Glazing?

Secondary glazing is an internal window that can be fitted into the reveal (Windowsill) or face fixed (fixed to the wall). Here at Granada we recommend a minimum gap of 150mm. This gap is from the primary window to the secondary window. The key to reducing noise levels is to break up the sound wave passing through glazed units. The installation of secondary glazing adds an extra barrier for the noise to penetrate. By adding an extra barrier and the air gap between the primary window and secondary window we are confident that in most cases you will see a noise reduction of up to 80%.

Do different types of glass impact sound reduction?

In short YES!. Over the last decade advancements in laminated glass has increased. Here at Granada we advise our users to specify a minimum of 6.4mm clear acoustic glass. Our glass range includes:
• 6.4mm Clear Acoustic Laminate
• 6.8mm Clear Acoustic Laminate
• 8.8mm Clear Acoustic Laminate

Our general advice would be to specify a minimum of 6.4mm clear Acoustic glass with a minimum air gap of 150mm. For the best acoustic performance, we advise the installation of 8.8 Clear Acoustic glass and where possible to increase the gap between the primary and secondary units up to 200mm.

Why Granada Secondary Glazing?

Our slimline aluminium frames are durable, discreet and are available in over 200 RAL colours. Our range of secondary glazing can accommodate all window styles and maintains the functionality of your existing windows. Acoustic tests have been carried out and the results show that secondary glazing offers the best performance results at eliminating external noise breeching the primary unit weather it is single glazed, double glazed or triple glazed. All our units are manufactured in the UK and can be supplied 10 days of order. Our large network of installers and trade partners cover the whole of the UK.

To find out more about our secondary glazing, the benefits it offers or to request a quote please get in touch.

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