Cavity fire barriers play a critical role in fire safety, preventing the spread of flames and smoke through concealed spaces in buildings, such as wall cavities, ceilings, and floors. Proper installation of these barriers is not just a regulatory requirement but also a measure that can save lives and protect property in the event of a fire. Unfortunately, we are seeing many projects that suffer from incorrect installation, significantly reducing the effectiveness of these lifesaving measures and putting occupants at risk. There can also be serious financial consequences due to the cost of rectifying the errors.

The Dangers of Incorrect Installation

Almost every week we are made aware of projects, some of them extremely large projects, where our cavity barriers have been installed incorrectly. Sometimes upside down, sometimes with bent or even missing brackets – the list of errors is endless.

Incorrect installation of cavity barriers can lead to catastrophic consequences during a fire. Some of the most common errors observed include:

• Installing barriers upside down, which can compromise their functionality.

• Bent or missing brackets, leading to improper securing of barriers in place and lack of support for intumescent material.


Such mistakes render the barriers ineffective, negating their purpose and creating serious hazards for both occupants and firefighters. A well-installed cavity barrier can compartmentalise a fire, slowing its spread and allowing more time for evacuation and emergency response. When installed incorrectly, however, the fire can spread rapidly through cavities, causing extensive damage and endangering lives.

Why Choose Envirograf Cavity Barriers?

Envirograf is a trusted leader in fire protection solutions, offering a wide range of cavity barriers tailored to suit various construction needs, all rigorously tested and compliant with fire safety regulations. With so many options available, it is crucial to ensure that the correct type of barrier is chosen and installed properly. Envirograf’s team of experts is always available to provide guidance and support, ensuring that your project meets the highest safety standards.

Consult Envirograf for Expert Assistance

Before engaging a contractor to install Envirograf cavity barriers, or if you are an installer yourself, please consult directly with the team at Envirograf. Our expertise can help you:

• Select the most suitable barrier for your specific project.

• Understand the exact installation requirements for each type of barrier.

• Avoid costly mistakes that compromise fire safety.

Whether you’re working on a small-scale residential development or a large commercial project, proper installation of cavity barriers is non-negotiable. By consulting with Envirograf, you can ensure that your fire protection measures are implemented effectively, safeguarding lives and property.

A Final Word on Fire Safety

Fire safety is a shared responsibility, and construction companies must take the installation of cavity barriers with the utmost seriousness. Cutting corners or overlooking proper installation protocols can have devastating consequences Envirograf’s extensive range of cavity barriers, coupled with our expert guidance, ensures that your building is equipped with reliable fire protection solutions that perform when it matters most. Always remember: fire safety starts with proper installation.