![](https://insametal.com/wp-content/uploads/2023/11/Logo-Insametal-Gris-Sin-Texto.png)
Summary
This type of system utilizes the tunnel wall as insulation, minimizing the space it occupies. It consists of Z-folded sheets which, together with the perforated sheet, form the panel casing. Inside, rock wool insulation is installed.
![](https://insametal.com/wp-content/uploads/2023/11/Logo-Insametal-Gris-Sin-Texto.png)
Summary
This type of system utilizes the tunnel wall as insulation, minimizing the space it occupies. It consists of Z-folded sheets which, together with the perforated sheet, form the panel casing. Inside, rock wool insulation is installed.
![](https://insametal.com/wp-content/uploads/2024/02/REVERSTIMIENTO-TIPO-01-GALVA-1024x768.png)
Characteristics
- Metal.
- Adaptable to curved tunnels.
- Lightness.
- High absorption.
![](https://insametal.com/wp-content/uploads/2024/02/REVERSTIMIENTO-TIPO-01-GALVA.png)
Technical Specifications
Height
0.5 m (1.64 ft)
Pilar Spacing
From 2 m to 5 m (6.56 ft to 16.40 ft)
Thickness
110 mm (4.33")
Material
Steel
Main Element
Metal Sheet
Fixing Element
Z-folded sheet metal
Sound Absorption (DLa)
A3/A4/A5
Airborne Sound Insulation (DLr)
B2/B3
![Galvanized finish](https://insametal.com/wp-content/uploads/2023/12/IMAGEN-GALVANIZADO-1-480x480.png)
GALVANIZED
UNE-EN ISO 1461
POWDER COATING
EN 15773
![Thermo-lacquered](https://insametal.com/wp-content/uploads/2023/12/IMAGEN-TERMOLACADO-480x480.jpg)
![](https://insametal.com/wp-content/uploads/2024/01/train-1334905_1920-480x480.jpg)
DUPLEX SYSTEM
PROTECTION AND COLOR