A request for a PAS 9980 assessment is often treated as interchangeable with a FRAEW. It is not. In the PAS 9980 versus FRAEW discussion, the key point is that FRAEW describes the fire-risk appraisal activity, while PAS 9980 provides a recognised methodology for carrying out that appraisal of external wall construction.
For responsible persons, managing agents, developers and dutyholders, getting this distinction right matters. It affects the brief issued to the assessor, the evidence gathered, the competence required, the reliability of the report and whether recommended actions are proportionate to the building’s actual risk.
PAS 9980 versus FRAEW: the core distinction
A FRAEW is a Fire Risk Appraisal of External Walls. It is an appraisal undertaken to establish whether the external wall system of an existing building creates an unacceptable risk to life from external fire spread. The scope can include cladding, insulation, cavity barriers, spandrel panels, balconies, soffits, combustible attachments, cavity construction and interfaces with windows, doors and compartment floors.
PAS 9980:2022 is the code of practice that sets out a risk-based methodology for conducting a FRAEW. It was developed to move the industry away from broad assumptions that any combustible material in an external wall automatically requires removal. The methodology requires assessors to consider the building as a whole, including fire strategy, height, occupancy, means of escape, façade construction, fire service access and the consequences of fire spread.
Put simply, a FRAEW is the appraisal and PAS 9980 is one accepted method by which that appraisal may be completed. A report may therefore be described as a PAS 9980 FRAEW when the appraisal has followed the PAS methodology.
Why the distinction has operational consequences
An instruction that simply asks for a “PAS 9980” may not define the risk question, building areas or information required. Equally, a generic FRAEW that does not state its methodology, limitations or inspection basis can leave the responsible person with a document that is difficult to defend during audit, enforcement engagement or resident communication.
A well-scoped commission should establish whether the work is intended to support the building fire risk assessment, address a specific concern about external wall materials, inform a remediation strategy, respond to lender or insurer requirements, or provide evidence for a wider Building Safety Act compliance programme.
The output should also be clear. A PAS 9980-based FRAEW is not simply a façade survey and it is not a replacement for a full fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005. It should assess how the external wall risk interacts with the building’s fire precautions and identify whether further investigation, interim controls or remedial works are needed.
What PAS 9980 requires an assessor to consider
The PAS 9980 methodology is deliberately broader than a material-by-material review. The presence of combustible material may be relevant, but it is only one part of the fire-risk assessment.
The assessor considers potential fire spread through and over the façade, including routes from flat fires through windows and doors, cavities, balconies and decorative features. They also examine the likelihood that a fire could compromise evacuation before occupants can reach a place of safety.
Building-specific factors are central. A 10-storey residential building with a stay-put evacuation strategy, limited escape capacity and extensive combustible cladding will require a different appraisal from a low-rise building with short travel distances, clear escape routes and demonstrably effective compartmentation. Care homes, student accommodation, hotels and buildings with vulnerable occupants require particular attention because the time needed to evacuate may be greater.
The appraisal must also account for the quality and availability of evidence. Original design information, as-built drawings, O&M information, previous intrusive surveys, fire door records, compartmentation inspections and fire strategy documentation can all affect the confidence placed in conclusions. Missing evidence is not neutral. It may create uncertainty that requires targeted opening-up works or a more cautious recommendation.
Inspection and intrusive investigation
A PAS 9980 FRAEW may begin with a desktop review and visual inspection, but some buildings cannot be appraised confidently without intrusive investigation. The need for opening-up depends on the construction, the available records, visible defects and the consequences if concealed cavity barriers, insulation or fire stopping are absent or incorrectly installed.
Intrusive works should be planned properly. Locations need to be representative, access arrangements must be safe, and the investigation should be coordinated with resident liaison, asbestos information, work at height controls and reinstatement requirements. Poorly planned sampling can produce evidence that is too limited to support a meaningful risk conclusion.
When a FRAEW is likely to be needed
A FRAEW is generally considered where the external wall system may materially affect life safety, particularly in multi-occupied residential buildings. Common triggers include concerns identified in a fire risk assessment, uncertainty around cladding or insulation, a lender request, a post-fire review, planned refurbishment, or defects identified through façade inspection.
It is not automatically necessary for every building with external wall components. The decision should be proportionate to the building’s height, use, occupancy, façade complexity and known construction risks. A competent fire risk assessor may identify that a focused FRAEW is needed, or may determine that available evidence and the nature of the building do not justify one.
This is also where an EWS1 form is frequently misunderstood. EWS1 was created for valuation and lending purposes. It is not a statutory fire-safety assessment, and it does not replace a FRAEW or the responsible person’s duties under fire safety legislation. The two may draw on related evidence, but they serve different decisions.
Competence, independence and report quality
PAS 9980 expects the appraisal to be undertaken by competent professionals with appropriate knowledge of fire engineering, façade systems, building construction and fire-risk assessment. For more complex buildings, a multidisciplinary approach may be necessary. Fire safety expertise alone may not be sufficient where the performance of a rainscreen system, cavity barriers, structural interfaces or balcony details must be understood.
The report should identify the assessor, their competence, the information reviewed, areas inspected, constraints, assumptions and any need for further investigations. It should set out the risk assessment in a way that allows the responsible person to understand why a recommendation has been made.
Recommendations should be proportionate and prioritised. Depending on the findings, actions may range from no additional measures, improved management controls and targeted repairs through to replacement of defined façade elements. A finding of combustible material does not, by itself, establish that wholesale remediation is required. Conversely, a visually satisfactory façade should not be treated as evidence that concealed components are compliant.
Managing the findings after the appraisal
A PAS 9980 FRAEW report is the start of a management process, not the final administrative step. The responsible person should incorporate relevant findings into the building fire risk assessment and maintain a clear action plan with ownership, timescales and evidence of completion.
Where interim measures are recommended, these must be realistic and maintained. Enhanced fire alarm arrangements, waking watch provisions, restrictions on balcony storage or temporary changes to evacuation arrangements can be costly and disruptive. They should be based on a defined risk rationale, monitored regularly and removed or revised when permanent measures are completed.
Remedial specifications should address the defect identified, rather than treating the report as a generic instruction to strip and replace all external wall materials. Design, procurement, installation quality assurance and completion evidence all need control. Contractors should work to an agreed scope, suitable RAMS and inspection plan, with appropriate records retained for the building’s safety case and future fire-risk review.
Selecting the right brief
Before commissioning work, dutyholders should define the building, the intended decision and the information already available. Ask whether the requirement is for a review of external wall fire risk, a PAS 9980-based FRAEW, an intrusive façade investigation, a remediation specification, or a combination of these services.
The brief should require clear reporting of limitations and uncertainty. It should also establish interfaces with the existing fire risk assessment, fire strategy, compartmentation information and any planned building works. For higher-risk buildings, the scope should be aligned with wider building safety management arrangements and controlled information requirements.
The most useful appraisal is one that gives the responsible person a defensible basis for action without creating unnecessary remediation. PAS 9980 provides the discipline for that judgement, while the FRAEW provides the building-specific risk decision that must be managed in practice.