Glazing Reduces Traffic Noise
Glazing Reduces Traffic Noise
From the Foundation for Research, Science and Technology For immediate release
GLAZING REDUCES TRAFFIC NOISE
A window and
plastic panel combination that quietens noise from outside
buildings has been developed by Christchurch-based Magic
Seal (NZ). The system cuts down noise better than
double-glazing because it deflects sound differently, says
managing director Trevor Bunting. “Double-glazing consists
of two sheets of glass, each reacting the same way to
sound,” Mr Bunting says. “Glass and thermal panels react
differently from each other, resulting in significantly
reduced noise.” The product’s noise-muffling benefits were
developed in a research project that involved the University
of Canterbury and was part-funded by Technology New Zealand.
“We were aiming for a product that would cut down on outside
noise better than double-glazing,” Mr Bunting says. “The
university’s mechanical engineering department fired sound
at a control panel, and at our sample window and panel which
were set about 40-50mm apart. They found a huge drop in
truck-rumble – about 10 decibels. The noise was barely
audible.” The window panel is magnetically sealed against
the window frame and is made of materials that won’t rot or
stain. It is energy-efficient, controls condensation, almost
eliminates fading of fabrics from sunlight, and is almost
invisible when installed. Mr Bunting says the results of the
research funding from Technology New Zealand – part of the
Foundation for Research, Science and Technology – gave the
company the confidence to proceed with production. “We need
to export because there are overseas markets for this,” he
says. “The research has resulted in a product that will
perform significantly better than what is currently
available and thus opens the door to new export markets.”
Magic Seal started up in 1989 and employs three people. It
imports and makes up magnetic thermal insulating windows and
magnetic insect screens. -ends-
Contact: · Trevor Bunting, Magic Seal (NZ) Ltd, 10c Sheffield Cres, Burnside, Christchurch 8005. Ph: (03) 358-9223. Fax: (03) 358-9427. Email: magseal@chch.planet.org.nz. Website: www.magicsealworld.com · Tony Hadfield, Technology New Zealand (Christchurch office) at the Foundation for Research, Science and Technology, (03) 377-9340 or 025 494-095. Website: www.technz.co.nz
Prepared on behalf of the Foundation for Research, Science and Technology by ID Communications. Contact: Ian Carson (04) 477-2525, ian@idcomm.co.nz