Glossary · Two-word term
Building Safety
In short
management of risks to life and health from building structure and fire
Building safety refers to the management of risks to life and health resulting from a building’s structure and fire performance, particularly concerning the external wall systems and cladding of high-rise residential properties.
Last updated
On this page
Building Safety
Definition and Scope of Building Safety
In the context of the United Kingdom’s built environment, building safety refers to the management of risks to life and health arising from building structure and fire. While the term has broad applications across architecture and engineering, its contemporary usage is heavily influenced by the legislative framework established to address systemic failures in high-rise residential buildings. It is distinct from occupational health and safety (which focuses on workplace activities) and general building maintenance, focusing instead on the inherent risks posed by the physical fabric and the management of the building's core systems.
In the cladding industry, building safety is the primary driver for assessing external wall systems (EWS). It encompasses the entire lifecycle of a facade, from the initial specification of materials and the quality of installation to the long-term inspection and remediation of defects. The term implies a holistic view where the external envelope is not merely an aesthetic or weather-proofing layer but a critical component of the building’s fire strategy and structural integrity.
Building Safety in External Wall Systems
The relationship between building safety and external wall systems is defined by how fire might interact with the building fabric. An external wall system typically comprises several layers, including the outer cladding panels, insulation, fire breaks, cavities, and the structural backing wall. Building safety principles require these components to work in concert to inhibit the spread of flame and smoke, both across the surface of the building and through internal cavities.
When cladding testing or remediation is undertaken, building safety serves as the technical benchmark. Professionals assess whether the materials used—such as Aluminium Composite Material (ACM), High-Pressure Laminate (HPL), or various render systems—and the method of their installation meet the necessary performance standards. This involves scrutinising "hidden" elements, such as the presence and correct positioning of cavity barriers, which are essential for maintaining the fire compartments intended by the building’s original design.
Regulatory and Process Context in England and Wales
The regulatory landscape for building safety in England and Wales has undergone significant transformation, primarily through the introduction of the Building Safety Act 2022. This legislation created a more stringent regime for "higher-risk buildings"—typically defined by height and occupancy—governed by the Building Safety Regulator (BSR) under the Health and Safety Executive.
Central to this process is the concept of the "Golden Thread" of information. This refers to the digital record of a building’s design, construction, and ongoing management, ensuring that accurate data regarding the external wall system and other safety-critical components is available throughout the building’s life. The regulatory process often involves specific milestones, such as "Gateways" during design and construction, and the requirement for a Safety Case Report for existing buildings, which demonstrates how major hazards are being identified and mitigated.
Role of the Accountable Person
The management of building safety involves specific roles assigned by statute. The "Accountable Person" (AP) or "Principal Accountable Person" (PAP) holds the legal duty to assess and manage building safety risks. In residential blocks, this role is often fulfilled by the freeholder, a Management Company (RMC), or a Right to Manage (RTM) company.
These individuals or entities are responsible for ensuring that the building’s fire and structural risks are managed effectively. This includes registering higher-risk buildings with the regulator and preparing a Safety Case. In the context of cladding, the Accountable Person must ensure that any external wall assessments, such as those conducted under PAS 9980, are carried out by competent professionals and that any recommended remediation is addressed to meet the required safety standards.
Building Safety
Common Misunderstandings
A frequent misunderstanding is the conflation of "building safety" with "fire safety" alone. While fire risk is a dominant factor, building safety also encompasses structural stability. A building that is fire-safe but structurally unsound, or vice versa, does not meet the criteria for comprehensive building safety.
Another common misconception is that building safety is a binary state—that a building is either "safe" or "unsafe." Professionally, building safety is viewed as a process of risk management and mitigation. The goal is to reduce risks to a level that is "as low as reasonably practicable" (ALARP). Furthermore, some assume that building safety only applies to the external cladding panels themselves, whereas the underlying insulation, fixings, and cavity barriers are often more significant factors in the overall safety profile of the external wall.
Related Terminology and Standards
The vocabulary of building safety is extensive and technical. Understanding these related terms is essential for interpreting technical reports and regulatory guidance.
| Term | Definition in Building Safety Context |
|---|---|
| Competent Person | An individual with the necessary skills, knowledge, experience, and behaviours to perform specific safety-related tasks. |
| Mitigation | Actions taken to reduce the severity or likelihood of a building safety risk. |
| Remediation | The physical work required to rectify defects in the building fabric, such as replacing non-compliant cladding. |
| Safety Case | A structured argument, supported by evidence, providing justification that a building is safe for occupation. |
| Combustibility | The measure of how easily a material will burn or contribute to a fire, often categorised by European "Euroclass" ratings. |
Professional Assessment and Competence
Due to the complexity of building safety, evaluations must be performed by qualified professionals, such as fire engineers or structural engineers with specific expertise in external wall systems. These assessments consider the unique characteristics of each building, including its height, occupancy type, evacuation strategy, and the specific combination of materials used in the facade.
The process of ensuring building safety is iterative. As standards evolve and new information regarding material performance becomes available, building owners and managers must remain proactive. This involves regular inspections, maintaining the Golden Thread of information, and ensuring that any alterations to the building fabric do not inadvertently introduce new risks. Ultimately, the objective of building safety in the cladding industry is to provide a robust, evidence-based framework for protecting occupants and the structural integrity of the built environment.
Building Safety