What is Fire-Resistant Duct Wraps?
Fire-resistant duct wraps are flexible, insulated barriers installed around HVAC ductwork to protect it from fire exposure. These wraps are typically manufactured from high-temperature materials such as mineral wool or fibreglass, designed to withstand extreme heat while maintaining structural integrity.
Most fire resistance wraps are fully encapsulated in aluminium foil, providing added durability, moisture resistance, and a clean, professional finish suitable for commercial and industrial environments.
How Fire Resistance Wraps Protect Ductwork
Unprotected ductwork can act as a pathway for fire and smoke to spread rapidly between fire compartments. Fire resistance wraps help control this risk by:
- Limiting the transfer of heat through duct systems
- Preventing fire and smoke spread between fire-rated zones
- Maintaining the fire resistance level of walls and floors
- Protecting the structural integrity of HVAC ductwork
- Supporting safe evacuation and fire control efforts
Correct installation is essential to ensure the duct wrap performs as tested.
Fire Resistant Materials and Performance
The materials used in fire resistance wraps are engineered for high-performance fire protection while offering additional benefits.
Key material features include:
- Fire resistant mineral wool or fibreglass insulation
- High melting point and low combustibility
- Aluminium foil encapsulation for durability
- Added thermal and acoustic insulation
- Lightweight construction for efficient installation
These characteristics make fire-resistant duct wraps a practical and effective solution for modern building services.
Compliance With Australian Standards
Fire-resistant duct wraps must comply with Australian building regulations and fire testing standards to be considered compliant.
True Seal ensures all installations align with:
- AS1530 Part 4 fire resistance testing requirements
- National Construction Code (NCC) provisions
- Manufacturer-tested fire wrap systems
- Approved fire engineering solutions where applicable
This ensures ductwork protection performs as required during a fire event.
Common Applications for Fire-Resistant Duct Wraps
We install fire resistance wraps for ductwork across a wide range of building types, including:
- Commercial offices and retail developments
- Industrial facilities and warehouses
- Hospitals, aged care, and education buildings
- Residential and multi-occupancy complexes
- Mechanical plant rooms and service risers
Each installation is tailored to the building’s fire strategy and HVAC design.
Passive Fire Protection for HVAC Systems
Fire-resistant duct wraps form part of an integrated passive fire protection system, working alongside fire stopping, fireseal products, and fire-rated barriers to maintain compartmentation.
True Seal installs duct wrap systems that are suitable for:
- Supply and return air ducts
- Exhaust and smoke ducts
- Ductwork passing through fire-rated walls and floors
- Mechanical plant rooms and service risers
Each solution is selected based on duct type, fire resistance requirements, and compliance obligations.
Compliant Installation You Can Trust
True Seal installs fire resistance wraps for ductwork strictly in accordance with manufacturer specifications and tested fire systems. This ensures the installed wrap delivers the required fire performance without compromising airflow or system functionality.
Our installation process includes:
- Assessing duct size, configuration, and fire rating requirements
- Selecting compliant, tested duct wrap systems
- Installing wraps to achieve full encapsulation and coverage
- Integrating fireseal and fire stopping where ductwork penetrates fire-rated elements
- Preparing works for inspection and certification
No shortcuts or untested substitutions are used.
Certification and Occupancy Approval
Certification confirms that fire resistance wraps have been installed correctly and comply with required fire standards. This documentation is essential for inspections and approval processes.
True Seal provides:
- Certification by trained and accredited professionals
- Documentation identifying installed fire-resistant duct wrap systems
- Support for certifiers and building surveyors
- Compliance evidence for Building Certificate of Occupancy approval
Clear certification reduces approval delays and compliance risks.
Our Services
True Seal offers a complete range of Passive Fire Protection solutions designed to meet Australian Standards and ensure every project achieves full compliance from start to finish.
Why Choose True Seal?
True Seal is a trusted specialist in passive fire protection, delivering compliant fire resistant solutions backed by experience and certification.
Our difference includes:
- Expertise in fire resistance wraps for ductwork
- Strict compliance with Australian Standards
- Integrated fire stopping and fireseal solutions
- Clear, compliant documentation
- Support throughout inspections and approvals
We focus on safety, performance, and compliance, without compromise.
Request Fire Resistance Wrap Installation
If you require compliant fire resistance wraps for ductwork, True Seal can assist with assessment, installation, and certification.
Our team delivers reliable, tested, and fully documented passive fire protection solutions.
Contact True Seal today to discuss your project requirements or arrange a compliance assessment.
Frequently Asked Questions
Hebel Blockwork & Panels
What is Hebel made from?
Hebel is manufactured from Autoclaved Aerated Concrete (AAC), made using natural materials such as sand, cement, lime, and gypsum. This process creates a lightweight yet strong material with excellent fire resistance, acoustic performance, and thermal efficiency.
What fire ratings can Hebel blockwork and panels achieve?
Hebel blockwork and panel systems can achieve a wide range of fire ratings depending on thickness, configuration, and installation method. Fire performance must always align with tested Hebel systems and comply with NCC requirements.
Can Hebel be used for both internal and external walls?
Yes. Hebel blockwork and panels are suitable for internal and external walls, including boundary walls, separating walls, plant rooms, and fire-rated partitions. System selection depends on structural, fire, and acoustic requirements.
How does Hebel integrate with passive fire protection systems?
Hebel systems are commonly integrated with other passive fire protection measures such as fire stopping, fireseal products, fire boards, and fire-rated batts. Proper detailing around joints and service penetrations is essential to maintain fire resistance.
What happens if Hebel systems are installed incorrectly?
Incorrect installation can compromise fire resistance, acoustic performance, and compliance. This may result in failed inspections, approval delays, or costly rectification works. Hebel must always be installed in accordance with manufacturer specifications and tested system designs.
Is Hebel considered a fire resistant building material?
Yes. Hebel is a non-combustible, fire resistant material that can achieve high Fire Resistance Levels (FRLs) when installed as part of a tested system. Its cellular AAC structure helps limit heat transfer and maintain structural integrity during a fire.
What is the difference between Hebel blocks and Hebel panels?
Hebel blocks are smaller units used in masonry-style construction, commonly for internal and external fire-rated walls. Hebel panels are large-format AAC elements designed for faster installation on larger wall and floor assemblies. Both provide reliable fire resistant performance when installed correctly.
Does Hebel provide acoustic and thermal insulation?
Yes. Hebel offers excellent sound insulation and strong thermal performance, helping reduce noise transfer and improve energy efficiency. These benefits make Hebel well suited to residential, commercial, and multi-occupancy buildings.
Does Hebel installation require certification?
Yes. Hebel installations forming part of fire-rated construction must be documented and certified to demonstrate compliance with Australian Standards and NCC requirements. Certification supports inspections and Building Certificate of Occupancy approval.
Who should install Hebel blockwork and panels?
Hebel blockwork and panels should be installed by experienced contractors familiar with fire-rated construction and passive fire protection requirements. True Seal ensures all Hebel installations are completed correctly, documented thoroughly, and aligned with compliance expectations.