Why Intake and Exhaust Protection Matters
Debris ingress, contamination, and pressure surges directly expose tunnel intake and exhaust systems. During fire events, smoke backflow and heat can damage ducting and supports, leading to ventilation failure. Hence, engineered protection is essential for safe and reliable tunnel ventilation. Without dedicated intake and exhaust protection:
What is an Intake and Exhaust Acoustic Screen?
An intake-and-exhaust acoustic screen reduces ventilation noise while maintaining smooth airflow performance.
Noise Attenuation
Helps control intake and exhaust noise levels.
Airflow Efficiency
Minimise a pressure drop across the system.
Weather Resistance
Helps block smoke and harmful gases from spreading.
Structural Strength
Withstands wind loads and mechanical stress.
Easy Maintenance
Modular design allows quick access and servicing.
How the System Protects Your Facility
Intake and exhaust acoustic screens reduce ventilation noise while maintaining efficient airflow. They support quieter operations, protect equipment openings, and help facilities meet industrial compliance requirements by minimising noise pollution and ensuring a more comfortable work environment for employees.
Reduces airborne noise from ventilation intakes and discharge points, improving site conditions and helping meet noise limits to support worker productivity and regulatory compliance.
Maintains high airflow performance while minimising pressure losses across the system, ensuring efficient fan operation and stable, consistent ventilation output.
Shields protect ventilation openings from rain, dust, and airborne debris, helping to prevent internal damage and enhance system reliability.
Built from robust materials engineered for harsh industrial environments, ensuring a long service life with minimal performance degradation.
Designed for quick installation, retrofitting, and easy access during servicing, it reduces downtime and simplifies routine inspections.
Performance & Technical Specifications
Fire & Thermal Protection
EI 120–240 min fire resistance (standard & high-heat variants).
Compatible with HC, RWS, and tunnel fire curves.
Prevents concrete spalling and protects steel reinforcement under extreme heat.
Smoke & Gas Containment
Fully sealed system blocks smoke, toxic gases, and hot fire-gases.
Enables safer evacuation and rescue paths.
No hazardous post-event debris or collapse.
Blast & Impact Resistance
Engineered to withstand high overpressure events.
Maintains structural integrity after combined fire + blast scenarios.
No hazardous post-event debris or collapse.
Materials & Construction
Non-combustible, moisture- and corrosion-resistant composite system.
Lightweight vs concrete; fast installation and easier maintenance.
Modular panels fit new builds, retrofits, and complex tunnel geometries.
Advantages Over ConventionalTunnel Protection Methods
Traditional Methods
Concrete or plain-lining risk of spalling, reinforcement failure, structural collapse under fire/heat.
Spray-applied fireproofing / fire boards / mortars may require frequent maintenance, have limited durability, may degrade upon moisture or impact
Passive fire barriers only (fire partitions, boards) limited or no blast, impact, debris, or smoke/gas protection.
Heavy & bulky steel/concrete barriers are difficult, high-cost and have long downtime for retrofit/repair.
SECURA Tunnel Wall Benefits
Heavy & bulky steel/concrete barriers are difficult, high-cost and have long downtime for retrofit/repair.
Durable, moisture-resistant, corrosion-proof composite system — long lifecycle, low maintenance, high resilience.
Multi-hazard protection (fire, blast, impact, smoke/gas, thermal, acoustic), enabling comprehensive risk mitigation.
Lightweight modular panels — faster installation, retrofit friendly, minimal disruption to tunnel operations.
Sectors We Serve
Our solutions are designed for sectors where infrastructure reliability, safety, and long-term performance are critical.
Energy & Utilities
Energy & Utilities
- Power & Grid Infrastructure
- Energy & Process Facilities
- Onshore & Offshore Assets
- Renewable Energy Infrastructure
Industrial
Industrial
- Chemical & Process Plants
- Manufacturing & Heavy Industry
- Hazardous Material storage facilities
- Automotive & Industrial Campuses
Transportation
Transportation
- Airports & Aviation Facilities
- Metro, Rail & Mass Transit Systems
- Roads, Highways & Vehicular Tunnels
- Ports, Shipyards & Marine Transport Infrastructure
Defence
Defence
- Defence & Command Facilities
- Critical National Infrastructure (CNI)
- Secure & Hardened Assets
- Border, Coastal & Strategic Installations
Infrastructure
Infrastructure
- Data Centres & Digital Infrastructure
- Public Venues & Stadia
- Cultural & Institutional Buildings
- Government & Diplomatic Facilities
Commercial/Mixed-Use
Commercial/Mixed-Use
- Hospitality & Leisure
- Financial & Commercial Buildings
- Mixed-Use Landmark Developments
