WHY USE EI45 FIREPROOF DUCTS – SAFE SOLUTIONS FOR INDUSTRIAL VENTILATION SYSTEMS?
In the field of construction and fire protection, EI45 fire-resistant duct system is becoming increasingly important and indispensable for industrial, commercial and civil works. The following article will explain in detail why choosing EI45 fire-resistant duct is a strategic decision to protect life and property.

- Concept of EI45 Fireproof Duct
The term EI in fire-resistant ductwork has an important meaning. Specifically:
- E (Integrity): Ensures the integrity of the ductwork, preventing the spread of fire
- I (Insulation): Ability to insulate, limit the transmission of outside temperature
EI45 ductwork means that the ductwork system can withstand a fire for 45 minutes, keeping its structure intact and not allowing outside temperatures to penetrate.
- The Importance of Fireproof Ducts
Ventilation systems are more than just air circulation. In the event of a fire, they play a key role:
- Prevent the spread of smoke between areas
- Control the direction of smoke and heat movement
- Support evacuation and fire fighting
- Protect escape routes
- Advantages of EI45 Fireproof Duct
Compared with conventional air ducts, EI45 offers many benefits:
- High durability under fire conditions
- Minimize damage to people and property
- Meet strict fire safety standards
- Increase critical escape time
- Priority Areas for EI45 Duct Installation
- Shopping mall
- Factory
- Hospital
- School
- High-rise office building
- Dangerous goods storage area

- Technical Standards
According to QCVN06:2020, fireproof air ducts must:
- Tested according to ISO 6944:1985
- Ensure structural stability
- Maintain integrity
- Has optimal insulation capacity
- Fireproof Duct Classification
- Type A: Protection against fire from outside
- Type B: Fire protection inside the pipe
- Important Factors When Choosing
- Manufacturing materials
- Pipe wall thickness
- Heat resistance
- Standard certification
- Investment Costs and Long-Term Benefits
Although the initial cost may be higher, EI45 fire rated ductwork offers:
- Risk Reduction
- Lower insurance
- Long service life
- Maximum safety for humans

Conclude
EI45 fire-resistant ductwork is no longer an option, but a mandatory requirement in modern constructions. Investing in this system is to protect life, property and minimize risks in emergency situations.
Sao Viet Air Duct Company - Professional air conditioning Address: 267 Le Thanh Tong, May Chai, Ngo Quyen, Hai Phong Consulting hotline:
- Mrs. Hang: 0985.239.838
- Mrs. Giang: 0934.559.168 Website: www.dieuhoasaoviet.vn
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