Constantly increasing traffic and industrial noise related to the development of road and rail infrastructure and fast-growing industrial parks forces us to utilise ever more innovative solutions for protection against it. To accommodate this, the company Flora Bis sp. z o. o. has created the ALUMET noise insulation panel series:
Alumet 1 – single-side absorbing
Alumet 2 – double-side insulating
Alumet 3 – double-side absorbing
The noise absorbing panel Alumet 1 is constructed out of two profiled aluminium sheets, with the front one perforated; the Alumet 2 panel is made of two profiled, non-perforated aluminium sheets, while the Alumet 3 panel is made of two profiled, perforated aluminium sheets, installed on two special profiles: the upper and lower one, which are tasked with appropriately shaping the nest to stabilise the noise layers inside the panel, and are profiled to accommodate tongue and groove joining. The panel colour is determined by the Ordering Party on the basis of the RAL palette. Alumet aluminium panels are equipped with side spacers stabilising the panels in HEB/ HEA 160 pillars.
Panel acoustic parameters:
| Panel acoustic parameters: |
[dB] |
Class |
| Single-number weighted insulation index, Rw:
– Alumet 1 – Alumet 2 – Alumet 3 |
31 dB 31 dB 31 dB |
|
| Single-number airborne noise insulation assessment index ΔLR:
– Alumet 1 – Alumet 2 – Alumet 3 |
25 dB 25 dB 26 dB |
B3 |
| Single-number noise absorption assessment index ΔLα:
– Alumet 1 – Alumet 2 – Alumet 3 |
16 dB nie dotyczy 16 dB |
A4 |
Panel technical parameters:
Panel thickness: 130 mm, used mainly for installation in HEA/HEB 160 pillars. In case of installation in pillars larger than HEA/HEB 160, spacers are used.
Panel height: 500 mm
Panel length: up to 5000 mm
The panels hold a Technical Approval no. AT/ 2013-02-2987 issued by the Polish Road and Bridge Research Institute of Warsaw, and CE certification supported by a report of the Bratislava Building Testing and Research Institute of Slovakia.
The modularity of the system allows the panels to be mated with other types, e. g. green wall, wooden or transparent ones. Thanks to the low mass of the panels, their installation (insertion between pre-installed pillars) can be effected manually without the use or a crane or hydraulic on-board crane. The Alumet 2 aluminium noise panel is a reflective one.
