In any building, safety starts long before an emergency occurs. Effective fire stopping plays a critical role in preventing a small incident from becoming a large-scale disaster. Among the most reliable fire stopping solutions available today, intumescent wraps stand out for their proven ability to protect lives, property, and compliance.
At Zyan Fire Protection, we specialise in certified fire stopping services that include the professional installation of intumescent wraps and other passive fire protection systems. Understanding how these materials work and why they are essential can help property owners and managers make informed, compliant decisions.
What Are Intumescent Wraps?
Intumescent wraps are flexible fire-resistant materials designed to seal around pipes, cables, and ducts that penetrate fire-rated walls or floors. When exposed to extreme heat, the material expands to many times its original size, forming a dense, insulating barrier.
This expansion effectively seals the opening, preventing fire and smoke from spreading between compartments. In practical terms, intumescent wraps restore the integrity of fire-rated structures that would otherwise be compromised by service penetrations.
By including intumescent wraps as part of a certified fire stopping system, buildings can maintain compartmentation and meet the legal standards required by UK Building Regulations (Part B).
How Intumescent Wraps Work During a Fire
During a fire, temperature increases rapidly. Intumescent materials are designed to react once a specific threshold is reached, typically around 180°C. At that point, they expand, filling surrounding gaps and forming a solid char layer that resists both flame and smoke movement.
Here’s what happens step by step:
- Activation: As heat rises, the wrap begins to expand.
- Sealing: The expanding material fills gaps left around the pipe or duct.
- Insulation: The resulting barrier prevents heat transfer, slowing down the fire’s progression.
- Containment: The sealed area maintains compartmentation, allowing occupants valuable evacuation time and reducing property damage.
This simple yet effective reaction can make the difference between a contained incident and a rapidly spreading fire.
Why Intumescent Wraps Are Essential in Fire Stopping
While fire stopping covers a wide range of materials and techniques, intumescent wraps provide several unique advantages.
Versatile Application
They can be used around a variety of materials, including plastic pipes, cable bundles, and metal ducts, making them suitable for almost any commercial or residential setting.
Compact and Non-Disruptive
Unlike some rigid fire stopping methods, wraps are lightweight and flexible, allowing for easy installation in confined areas or retrofit projects.
Reliable Performance
Their expansion rate and durability are thoroughly tested to ensure compliance with the latest fire safety standards, offering consistent performance across different applications.
Cost-Effective Compliance
Because they are quick to install and long-lasting, intumescent wraps are an efficient way to meet fire safety regulations without significant disruption or cost.
Compliance and Regulations
In the UK, the use of fire stopping systems is required under Building Regulations Part B, which governs fire safety in building design and construction. Intumescent wraps contribute directly to compliance by ensuring that penetrations in fire-rated elements remain sealed during an emergency.
To remain compliant, installations must:
- Be carried out by certified contractors
- Use approved and tested materials
- Be documented through clear fire strategy reports and certificates
At Zyan Fire Protection, every fire stopping solution we install, including intumescent wraps, is tested, certified, and accompanied by the necessary documentation for full regulatory assurance.
The Role of Intumescent Wraps in a Complete Fire Stopping System
While intumescent wraps are highly effective, they are most powerful when used as part of a broader fire stopping strategy. This system may include:
- Fire barriers for concealed spaces
- Fire-rated sealants and mortars for joints and gaps
- Fire doors and compartmentation elements
Together, these measures form a complete passive fire protection network that reduces the spread of smoke and flame, protecting both lives and assets.
Why Choose Zyan Fire Protection
When it comes to fire stopping services, experience and certification matter. Zyan Fire Protection is a trusted partner in passive fire protection, delivering reliable, regulation-compliant solutions across London and the UK.
Here’s why clients choose us:
- Certified expertise with BM Trada accreditation and approved fire-resistant materials
- Independent and impartial advice tailored to each building’s needs
- End-to-end service from survey to certification
- Full documentation for transparent compliance reporting
Our focus is simple: to help you achieve long-term safety, compliance, and peace of mind.
Conclusion
Intumescent wraps may look like a simple material, but during a fire emergency, they perform a vital function that can save lives and property. By sealing penetrations and maintaining compartmentation, they form an essential part of a compliant fire stopping system.
Working with a certified provider like Zyan Fire Protection ensures that your fire stopping solutions are properly installed, documented, and compliant with UK regulations.
FAQs
Are intumescent wraps suitable for all types of buildings?
Yes. Intumescent wraps can be used in residential, commercial, healthcare, and industrial settings wherever service penetrations pass through fire-rated walls or floors.
How often should intumescent wraps be inspected?
They should be inspected during routine fire safety checks or whenever building alterations occur that might affect compartmentation.
Do intumescent wraps replace other fire stopping systems?
No. They complement other fire stopping methods, forming part of an integrated passive fire protection strategy that includes barriers, sealants, and doors.
Book Your Fire Safety Consultation
Ensure your building meets all fire safety and compliance standards with Zyan Fire Protection.
Contact our certified team today to book a no-obligation site survey or consultation and discover how our expert fire stopping services can safeguard your property.

