Façade Acoustic Double Glazing Systems

By Thermosash
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Whether you want to improve your building's performance or reduce acoustic transfer through the glass component of your building then Thermosash secondary double glazing could provide the solution. Thermosash secondary double glazing has been designed to combat the widest possible range of thermal and acoustic problems.

The specification of Acoustic rated facades is common where office buildings or Residential Apartment buildings are located in close proximity to noisy environments. Our most recognisable suite for this is our Stick System Curtainwall CW400 / CW600 / CW900 which is also thermally isolated, our Delta Commercial Suite (which is ideal for lowrise and highrise apartment buildings) and our twinwall engineered systems combined with almost any of our suites.

Our flush glazed PW1000 curtainwall suite was installed at the Auckland International Airport in the Novotel with a jockey sash incorporated into the design. Due to efficiency in acoustic design, guests at the hotel enjoy whisper quite rooms right by the airport.

Details
  • Category
    Glazed Facade Systems
General
  • Installation
    Professional installation required
Performance

Thermal Performance Benefits

The insulative efficiency of an IGU is largely determined by the thickness of the space between the two sheets of glass and whether this space is filled with air or a gas such as argon or krypton. Should the space between be too little, this provides a conductive heat loss between the panes whereas if it is too large, a convective current can begin to circulate causing heat transfer also. Generally, the gap is between 16-19mm. As the separation reduces heat gain or cooling from the transfer of cool surfaces - the technology also works in limiting heat loss from the internal environment.

As one of the largest single running costs of a commercial building is attributed to the conditioning of air (heating or cooling) commercial double glazing can provide significant energy savings to almost any project.

Acoustic Benefits

For optimum acoustic performance of secondary double glazing use a glass which differs in thickness by at least 30%, (e.g. 4mm + 6mm + 10mm). Sound reduction will improve with increased glass thickness (particularly at higher frequencies) due to the greater mass involved.

Increasing the width of cavity produces an increase in sound insulation but not pro rata. Beyond a spacing of about 200mm the incremental acoustic improvement is small and, generally, an expensive unit to install due to typical existing reveal depths. Sound reduction will increase with the use of laminated glass, due to the vibration dampening effect of the PVB or by lining the cavity with sound absorbent insulation material, generating sound reduction of 10db (50%) is generally quite achievable with this product, based on limitations of existing building in conditions.

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Thermosash is New Zealand’s largest commercial window, curtainwall, total clad façade designer, manufacturer and contractor - local since 1973.               

As a world class supplier of engineered façades, we provide, through constant evolution of our product range, systems that are trusted and proven.

“Our work at Thermosash is critical to the building industry. Our prefabricated design specific engineered building envelopes shape the appearance of our skylines: offering comfort to occupants from heat and cold, protection from the elements, respite from the acoustic discomfort of busy cities and pleasure to those who appreciate the built environment”. David Hayes, Group Managing Director.

Our growth since 1973 demonstrates that the strength we offer the building industry is underpinned by supplying quality, long lasting, engineered building envelope systems. Our ability to meet tight lead times and on-site programmes, our acceptance of transfer of design responsibility, our engineering, manufacturing, logistics and on-site capabilities, together with our team’s passion and quality service commitment enables us to remain at the forefront of the facade subcontracting industry.

Our Expertise
Thermosash’s abilities have grown since its 1973 start-up when Laurie Hayes and his colleagues manufactured commercial windows out of a small production facility. It quickly became apparent that the products and skills of the workforce were creating a performing quality, flexible product that the market sought.

Over time, our teams of dedicated and committed people have grown, this has been possible through constant reassessment of internal and external processes and manufacturing methods from around the world. We’ve also provided ongoing reinvestment in the training of our people to ensure lean process, IT Systems, material handling machinery and transport logistics equipment, as well as design office and factory production process improvements. We are able to offer a world class company with manufacturing facilities in Auckland, Wellington and Christchurch.

Our Offering
We offer an extensive range of cost effective, high performance rainscreen, pressure equalised window, door and façade solutions to suit any commercial project. Our products are incorporated in high-rise office blocks, apartment buildings, shopping centres, airports, institutions, hotels, industrial complexes and quality architectural homes.

In addition to offering bespoke façade solutions for new builds, we are experts in recladding, rainscreen over-cladding and the refurbishment of existing façades.