Homeowners increasingly choose secondary glazed windows for their ability to create a quieter, warmer, and more secure living environment. These three qualities form the foundation of our Secondary Glazing system, which is why it has become a popular choice among homeowners.
Exceptional Noise Reduction
Our bespoke secondary glazing is engineered and fitted with precision resulting in a tightly sealed frame that delivers outstanding sound insulation. Independent tests have shown that Secondary Acoustic Glazing can reduce noise levels significantly and outperforms conventional glass solutions. In addition to noise reduction, our Secondary Glazing also enhances thermal efficiency and security, providing comprehensive benefits for your home.
The Facts and Figures.
A traditional external single glazed window with 4mm glass will offer around 27dB noise reduction. The average PVC double glazed window will achieve around 30dB. An upgraded acoustic triple glazed window (if fitted correctly) will achieve 36-38dB.
Secondary Glazing improves on these figures by using a deeper barrier between the glass units and often employing acoustic laminate glass. Additionally at Secondary Glazing NI we ensure our fitting is tight and we use acoustic sealant to gain the best results.
The extra ‘barrier’ provided by noise reducing secondary glazing can reduce noise levels by up to the equivalent of 54dB. This window soundproofing effect reduces traffic noise from a roar to a whisper.
For the best acoustic performance, secondary glazing is installed with a 150mm to 200mm gap from the main window. Blinds and ornaments can still be displayed on the windowsill as secondary glazing is slimline and unobtrusive. Standard 4mm glass and a 150mm air gap will offer up to a 48dB sound reduction.
For optimum performance we usually specify 6.8mm Acoustic or 6.4mm Laminated glass. These thicker panes offer greater noise dampening benefits due to their ability to block different wave lengths of sound that can reduce noise levels by as much as 54 decibels.
We cannot guarantee total sound proofing, but our system will certainly make your home quieter, warmer and safer.
For further information we can provide independent test data for your glass choices.
