Summary
The INSA P81 DA metal noise barrier is specifically designed to achieve double-sided sound absorption, effectively mitigating noise on both sides of a road, transit route, or similar infrastructure. Its special configuration also allows for directional insulation, reducing sound transmission from one direction to the opposite.
Made of galvanized steel with a rock wool core, it offers excellent acoustic performance and structural strength.
Installation is usually done by embedding it into HEAA profiles, ensuring firmness and durability. It is also available painted in the RAL color range, with RAL 6009 (fir green) being the most common.
Unlike the P68 DA model, the P81 DA has a thicker profile, resulting in greater absorption and acoustic insulation, making it ideal for projects with higher sound performance requirements.
Characteristics
- Maximum lightness.
- Variable module lengths.
- High acoustic absorption.
- Wide range of colors.
Technical Specifications
Height
0.5 m (1.64 ft)
Pilar Spacing
Up to 5000mm
Thickness
160mm
Weight
17 kg/m (11.42 lb/ft)
Material
Steel
Main Element
Perforated
Auxiliary Element
Perforated
Filler
Mineral wool
Fixing Element
Anchor plate
Sound Absorption (DLa)
A5
Airborne Sound Insulation (DLr)
B3
Global Isolation Rw (C, Ctr)
–
Foundation
FOOTINGS
PILES
GALVANIZED
UNE-EN ISO 1461
POWDER COATING
EN 15773
DUPLEX SYSTEM
PROTECTION AND COLOR
