Paul Columbus, Novotel General Manager is quoted as saying;
"The façade soundproofing is so whisper quiet, I couldn't hear an Airbus A380 take off, only a few hundred metres away."
In 2002, Thermosash had our Delta Sliding door tested acoustically by Norman Disney Young, It was noted that our sliding door performance was very good, with results very close to a hinged door.
The report was summarised as follows;
"...this is certainly a very impressive result for a sliding door and one of the best we are aware of. Following the initial test, we have recommended this system for a number of projects where traffic noise has been of concern."
The full report is available upon request
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.
Performance / Testing
- AS/NZS1170 (Structural Design Actions)
- NZS4223 (Glazing in Buildings)
- NZS/AS4284:2008 (Water / Air Pressure/ Air Leakage - Meets and exceeds minimum requirements)
The standard warranty is 5 years from the date of practical completion for these products. This covers workmanship and weather tightness, providing the subcontract includes fabrication, installation and glazing of all components.