CE-marked noise attenuation solutions for roads, bridges and railways. Both the low weight and the hard surface of Hammerglass makes it a popular choice not only for new projects but also for glass replacement. The use of nanotechnology helps to prevent pollutants from exhaust fumes, oil and asphalt from adhering to Hammerglass as easily as they do to ordinary glass. The estimated service life is more than 40 years. Our noise reducing systems with Hammerglass are installed on bridge railings and traffic dividers as well as alongside roads and railways in Sweden, Norway and Finland.
NOISE BARRIERS
CE-marked noise reduction screens for roads, bridges & railways
CE-MARKED SOLUTIONS
Noise barriers on roadsides must be CE-marked according to EN 14388 – regardless of whether they are made of wood, aluminium, glass or plastic. The only exception to the CE-marking requirement are screens that are built on site from loose timber. If, on the other hand, the elements are produced in a factory, the screen must be CE-marked. However, the fact that a screen is CE-marked does not automatically mean that it is a high-quality product or that it meets the customer requirements. The point of the CE standard is that it should be easier to set requirements as all the products have been tested or calculated on the same scale, but the requirements must be specified in order to be able to make sense in relation to the product delivered. Hammerglass noise barriers are CE-marked according to current standards.
| CONFIGURATION | NOISE REDUCTION |
| Hammerglass 8 mm | 31 dB RW |
| Hammerglass 10 mm | 32 dB RW |
| Hammerglass 12 mm | 34 dB RW |
| Hammerglass 15 mm | 35 dB RW |
| Hammerglass 17 mm | 36 dB RW |
| Noise reduction HMG 12 mm + Hammerfoam 55 mm | 37 dB RW 31 DLR |
POSTS AND FIXING SYSTEMS
We have a wide range of posts and fixing solutions adapted to how the screen is to be placed and mounted. The posts can be anchored in bridge railings, on plinths or on walls - and strength is calculated based on height and load impact. The Hammerglass sheets are usually 12 mm thick. Before the sheets are cut, each section of barrier for glazing is measured individually, which means that it is possible to produce barriers which follow the contours of the ground. Consequently, the noise reduction barrier does not need to be stepped when there are changes in ground level. Height and design are individually tailored to each project. If necessary, the panels are secured with wire or through bolts. The panels may also be provided with patterns - usually opal or black - in order to prevent bird collisions.
SYSTEM POST-FREE
Visibility without the noise! Our CE-marked noise barrier which is used in the Stockholm Bypass area is self-supporting. By bending the Hammerglass panels where there should have been a post, the screen itself becomes so rigid that a steel post is not needed between the glass panels.
The barrier has thin anti bird collision stripes that cannot be seen from a distance but are still registered by birds. The result is an almost invisible noise barrier!
Noise barrier system Post-free
The transparent Post-free noise barrier – designed for the future
SYSTEM GROUND-2
A complete CE-marked system using bolt groups for installation in the ground or onto walls, along roads or railways. Can be supplied up to a height of 6 metres.
Hot-dip galvanised square posts with a ground plate for bottom fitting. Can be installed on support walls or with ground anchors. The Hammerglass panels are clamped between an HFRHS post and a robust clamping profile, and secured with wire at the top if necessary. The Hammerglass panels are installed on the inside of the posts (facing the road).
When installed with bolt groups in the ground it is advisable to bury the panels to a depth of about 20 cm in order to prevent the transmission of noise beneath the barrier. For mounting along railways, all screens are provided with earth rails and each section is earthed separately. A 45 degree bend in the top of the Hammerglass panels reinforces the structure and at the same time contributes to an effective reduction in low-frequency noise from trains.
The Hammerglass panels can also be supplied with printed patterns in order to prevent bird collisions.
| TECHNICAL SPECIFICATIONS GROUND-2 | |
|
Max width Max height (at width 2000 mm) |
2000 mm 6000 mm |
|
Product dimensions HFRHS Product dimensions U profile Product dimensions clamping profile |
100 x 100 x 6 mm 44 x 26 x 4 mm 8 mm |
| Thickness Hammerglass panels | 12, 15 and 17 mm |
|
Can be cut trapezoidally Can be provided with bird deterrent patterns |
Yes Yes |
| Noise reduction class | B3 (12 mm) |
| Noise reduction | 12 mm - 34 dB RW 12 mm - 30 DLR 15 mm - 35 dB RW 17 mm - 36 dB RW |
SYSTEM BRIDGE-2
A complete system for mounting onto bridge posts along roads or railways. Can be supplied up to a height of 6 metres.
Hot-dip galvanised posts for side mounting onto bridge posts. The Hammerglass panels are installed on the outside of the posts with an external support plate and clamping profile. If necessary, the panels are secured with wire at the top. Installation is carried out from the inside of the bridge.
For mounting along railways, all screens are provided with earth rails and each section is earthed separately. A 45 degree bend in the top of the Hammerglass panels reinforces the structure and at the same time contributes to an effective reduction in low-frequency noise from trains.
The Hammerglass panels can also be supplied with printed patterns in order to prevent bird collisions.
| TECHNICAL SPECIFICATIONS BRIDGE-2 | |
|
Max width Max height (at width 2000 mm) |
2000 mm 6000 mm |
|
Product dimensions HFRHS Product dimensions U profile Product dimensions clamping profile |
100 x 100 x 6 mm 44 x 26 x 4 mm 8 mm |
| Thickness Hammerglass panels | 12, 15 and 17 mm |
|
Can be inclined inwards/outwards Can be cut trapezoidally Can be provided with bird deterrent patterns |
Yes Yes Yes |
| Noise reduction class | B3 (12 mm) |
| Noise reduction | 12 mm - 34 dB RW 12 mm - 30 DLR 15 mm - 35 dB RW 17 mm - 36 dB RW |
SYSTEM BRIDGE-3
A complete CE-marked system for mounting onto bridge to the side of the bridge edge girder along roads or railways. Can be supplied up to a height of 6 metres.
The Hammerglass panels are clamped between an HFRHS post and a robust clamping profile, and secured with wire at the top, if necessary. Normally the screen is angled outwards to maintain the working width of the road barrier.
For mounting along railways, all screens are provided with earth rails and each section is earthed separately. A 45 degree bend in the top of the Hammerglass panels reinforces the structure and at the same time contributes to an effective reduction in low-frequency noise from trains.
The Hammerglass panels can also be supplied with printed patterns in order to prevent bird collisions.
| TECHNICAL SPECIFICATIONS BRIDGE-3 | |
|
Max width Max height (at width 2000 mm) |
2000 mm 6000 mm |
|
Product dimensions HFRHS Product dimensions U profile Product dimensions clamping profile |
100 x 100 x 6 mm 44 x 26 x 4 mm 8 mm |
| Thickness Hammerglass panels | 12, 15 and 17 mm |
|
Can be inclined inwards/outwards Can be cut trapezoidally Can be provided with bird deterrent patterns |
Yes Yes Yes |
| Noise reduction class | B3 (12 mm) |
| Noise reduction | 12 mm - 34 dB RW 12 mm - 30 DLR 15 mm - 35 dB RW 17 mm - 36 dB RW |
NOISE ABSORBENT HMG A500
HMG A500 is a complete noise-absorbing system with a sound reduction rating of 33 dB DLR, designed for installation along roads or railways. The system is CE-marked in accordance with EN 14388.
The lightweight cassettes are made from perforated sheet steel or aluminium combined with mineral wool. They are 50 cm high and up to 6 meters wide. The cassettes are compatible with various HEA post dimensions and can be supplied in any RAL colour. HMG A500 can also be combined with transparent cassettes.
| TECHNICAL SPECIFICATIONS HMG A500 | |
|
Min width cassette Max width cassette Height cassette Max screen height Thickness |
2000 mm 6000 mm 500 mm 5000 mm 100 mm |
|
Fire characteristics EN 16727-3 |
Class 3 |
|
Noise reduction HMG A500 Ljudabsorption HMG A500 |
33 dB DLR 20 dB DLα |
|
Noise reduction class Hammerglass 12 mm
|
B3 34 dB RW 30 DLR |
NOISE ABSORBENT HAMMERFOAM
Hammerfoam is complete noise absorbing system for installing on bridges or walls along roads or railways.
The system is based on a fully assembled Hammerglass Ground or Bridge solution and is supplemented by a highly absorbent mat which is clamped to the Hammerglass panel. Hammerfoam is fitted on that side facing the railway track or the carriageway. On the outside of the barrier is fitted the vandal-proof Hammerglass panel, which is also sunk approximately 20 cm into the ground. Hammerfoam can also be used for noise attenuation in combination with other materials – for example, lacquered decorative plates – such as in the 400 m long weather protection at Rosengård Station (Malmö, Sweden).
Hammerfoam is flame-retardant, UV resistant and age-resistant. It also withstands chemicals and pressure washers used for graffiti removal. Hammerfoam does not absorb water.
| TECHNICAL SPECIFICATIONS HAMMERFOAM | |
|
Max width in system Ground-2 Max height (at width 2000 mm) Standard Height Hammerfoam Thickness Hammerfoam Thickness Hammerglass panels |
2000 mm 6000 mm 1200 mm 50 mm 12 mm |
|
Fire characteristics DIN 4102 Fire characteristics EN 13501-1 |
Class B1 Class B, |
|
Noise reduction class Hammerglass 12 mm Sound absorption class Hammerfoam Balanced sound absorption coefficient (αw) Hammerfoam |
B3 A 0,9 |
| Noise reduction Hammerglass 12 mm | 34 dB RW 30 DLR |
| Noise reduction HMG-12 + Hammerfoam-55 | 37 dB RW 31 DLR |
NON-CONDUCTIVE WALL COPING PROTECTS AGAINST ELECTRIC CHOC AND ROT
On noise barriers and fencing and hoardings along railway lines sheet metal is for obvious safety reasons totally unsuitable. A fallen power line which comes into contact with the sheets can render the whole stretch of barrier live, and this could have devastating consequences. In this situation wall coping made from Hammerglass is an ideal solution for protecting the underlying timber structure against moisture and rot. The wall coping is non-conductive, and manufactured from black UV-resistant Hammerglass which can be adapted to both existing and newly-produced fencing and barrier solutions.
- Non-current-carrying
- Low weight
- Long estimated service life
- Minimal maintenance
- Cost-effective
SAFETY FITTINGS
Depending on the location and design of the noise barrier, Hammerglass panels may need to be secured in order to prevent them from tearing off their fixing, to avoid the barrier becoming live and to prevent birds from flying into the panels.
- Hammerglass panels are secured with wire at the top
- When assembling next to the railway, each screen is earthed with a separate earth rail
- The curved top provides a high degree of stability and is often used along railway lines where there is a high compressive force from trains rushing past.
- Printed patterns prevent bird collisions
DESIGN AND INSTALLATION
Bring us into your discussions at the idea stage. Our designers will prepare drawings and offer suggestions for functional solutions. We will be happy to provide tenders for complete projects: Made-to-measure Hammerglass, posts, fixing systems and installation.
- The panels are made to measure after a steel skeleton or the like has been assembled
- Ready-made solutions for fixing and installation
- 300 times stronger than glass
- Half the weight of glass
- No glass breakage
- Minimal maintenance
- Clear view of the surroundings