
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.

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.

Characteristics
- Metal.
- Adaptable to curved tunnels.
- Lightness.
- High absorption.

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
UNE-EN ISO 1461
POWDER COATING
EN 15773


DUPLEX SYSTEM
PROTECTION AND COLOR