FRAEW Scope: Detailed Guide

What Is FRAEW Scope?

FRAEW scope defines the full extent of work required to carry out a Fire Risk Appraisal of External Walls in accordance with PAS 9980. It sets out what the assessor must review, inspect, analyse, and report to determine fire risk associated with a building’s external wall system.

You need to understand FRAEW scope if you manage, own, develop, or advise on residential buildings. A clearly defined scope ensures the appraisal is suitable and sufficient, aligns with lender expectations, and supports decisions on remediation, risk management, and certification such as EWS1.

A weak or incomplete scope leads to unreliable conclusions. In practice, that can delay transactions, increase costs, and expose duty holders to regulatory risk.

This guide explains FRAEW scope in detail. It covers what is included, how assessors structure their work, what intrusive investigations involve, and how scope varies depending on building risk.

Why FRAEW Scope Matters

FRAEW scope determines the quality and reliability of the assessment. It directly affects outcomes such as:

Whether the building achieves a low-risk rating

Whether lenders accept the findings

Whether remediation is required

Whether an EWS1 form can be issued

You should treat scope as a technical specification, not an administrative formality. A properly scoped FRAEW aligns with the intent of PAS 9980, which focuses on proportionate risk assessment rather than blanket remediation.

In many cases, early clarity on scope reduces overall project cost. You avoid repeated site visits, additional opening-up works, and conflicting conclusions from different consultants.

Core Components of FRAEW Scope

A comprehensive FRAEW scope typically includes four core stages. Each stage builds evidence that supports the final risk assessment.

1. Desktop Review

The assessor starts with a detailed desktop review. This stage gathers all available information about the building.

You should expect the following documents to be reviewed:

As-built drawings and specifications

Fire strategy documents

O&M manuals

Previous fire risk assessments

Cladding system details

Planning and building control records

The objective is to understand how the external wall system was designed and constructed. This informs where risks may exist and where intrusive inspection is required.

A strong desktop review reduces uncertainty before attending site. It also helps target investigations more effectively.

2. External and Internal Site Inspection

The next stage involves a physical inspection of the building. This includes both external and internal areas.

External inspection focuses on:

Cladding type and condition

Balconies and attachments

Junctions and interfaces

Signs of deterioration or modification

Internal inspection focuses on:

Compartmentation adjacent to external walls

Fire stopping around windows and service penetrations

Internal linings that interact with façade systems

You should expect the assessor to take photographs, record observations, and identify areas requiring further investigation.

3. Intrusive Investigation

Intrusive inspection forms a critical part of FRAEW scope. Without it, the assessor cannot confirm how the wall system performs in a fire.

Typical intrusive works include:

Opening up cladding systems

Inspecting cavity barriers and fire stops

Confirming insulation type and combustibility

Checking fixing methods and workmanship

In practice, intrusive surveys often reveal issues not identified in design documentation. Industry experience shows that missing or incorrectly installed cavity barriers remain one of the most common risks.

You should plan for access requirements, making good works, and coordination with residents. Intrusive investigations usually take place over a defined period, often followed by laboratory testing if materials require verification.

4. Fire Risk Analysis and Reporting

The final stage involves analysing all gathered information and applying the PAS 9980 methodology.

The assessor evaluates:

Likelihood of fire spread via the external wall

Consequences for occupants and fire service

Overall risk level

The output is a structured FRAEW report that includes:

Building description and context

Summary of findings

Risk rating

Recommendations

These recommendations may include:

No action required

Risk mitigation measures

Full or partial remediation

You should treat the report as a decision-making tool. It supports funding applications, regulatory compliance, and lender engagement.

How FRAEW Scope Varies by Building Type

FRAEW scope is not fixed. It varies depending on building height, occupancy, and construction type.

Buildings Under 18 Metres

Lower-rise buildings often require a proportionate approach. The scope may include:

Limited intrusive inspection

Focus on specific risk elements such as balconies or insulation

Simplified analysis

However, do not assume low-rise means low risk. Timber balconies, combustible cladding, or poor detailing can still present significant hazards.

Buildings Over 18 Metres

Higher-risk buildings require a more detailed scope. You should expect:

Extensive intrusive investigations

Greater scrutiny of cavity barrier provision

Detailed fire spread modelling in some cases

Lenders and regulators typically expect a robust FRAEW for taller buildings. This forms the basis for EWS1 certification.

Complex or Mixed-Use Buildings

Mixed-use developments introduce additional complexity. FRAEW scope must consider:

Different occupancy types

Varied fire load profiles

Multiple façade systems

You need a tailored approach that addresses each element of the building.

Key Technical Elements Covered in FRAEW Scope

A well-defined FRAEW scope addresses specific technical components of the external wall system.

Cladding Materials

The assessor identifies all cladding materials and evaluates their combustibility. This includes:

Aluminium composite material (ACM)

High-pressure laminate (HPL)

Timber or decorative panels

Material classification plays a central role in risk assessment.

Insulation

Insulation type and installation quality significantly affect fire performance.

Scope includes:

Identifying insulation material

Confirming fire classification

Assessing installation continuity

Incorrectly installed insulation can create hidden fire pathways.

Cavity Barriers

Cavity barriers limit fire spread within façade cavities. FRAEW scope must confirm:

Presence and location

Correct installation

Continuity at junctions

Missing or defective cavity barriers represent a high-risk issue.

Balconies and Attachments

Balconies often fall within FRAEW scope because they can contribute to fire spread.

Assessment covers:

Material type

Connection to façade

Potential for fire bridging

Timber balconies require particular attention.

Windows and Openings

Windows and façade openings influence fire spread between compartments.

Scope includes:

Interface detailing

Fire stopping around frames

Potential flame spread routes

How Assessors Define FRAEW Scope

Competent assessors define FRAEW scope based on risk, not convenience. They follow a structured process.

You should expect them to:

Review available information

Identify knowledge gaps

Determine required level of investigation

Agree scope with the client

Professional competence matters. FRAEW assessors often hold memberships with organisations such as:

RICS

IFE

IFSM

CABE

BAFE

These affiliations demonstrate experience in fire safety and building pathology.

Common Issues Identified Within FRAEW Scope

In practice, FRAEW assessments frequently identify recurring issues.

These include:

Missing cavity barriers

Combustible insulation

Poor workmanship

Incomplete fire stopping

Unauthorised modifications

You should assume that older buildings or those with complex refurbishment histories carry higher risk.

Relationship Between FRAEW Scope and EWS1

FRAEW scope directly supports the EWS1 process.

An EWS1 form requires a competent professional to confirm the fire risk associated with the external wall. In many cases, the assessor relies on FRAEW findings to support this conclusion.

Without a robust FRAEW scope, the EWS1 process becomes unreliable. Lenders may reject incomplete or poorly evidenced assessments.

Programme and Deliverables

A typical FRAEW programme includes:

Desktop review: around 1 week

Intrusive survey: coordinated site phase

Reporting: around 2 to 3 weeks

You should allow time for access arrangements, resident communication, and potential follow-up investigations.

Deliverables include:

Full FRAEW report

Photographic records

Risk assessment summary

Recommendations

How Fees Relate to FRAEW Scope

FRAEW fees reflect the complexity of the scope.

Key cost drivers include:

Building size and height

Number of elevations

Extent of intrusive works

Access requirements

Complexity of façade systems

A larger or more complex scope increases cost, but it also improves certainty. You should focus on value rather than lowest price.

Best Practice for Clients

You can improve outcomes by managing FRAEW scope effectively.

Take these actions:

Provide complete documentation early

Agree scope before work starts

Plan access for intrusive surveys

Engage residents where required

Appoint experienced consultants

Clear scope reduces risk, avoids delays, and supports better decision making.

FAQs on FRAEW Scope

What does FRAEW scope include?

FRAEW scope includes desktop review, site inspection, intrusive investigation, and fire risk analysis. It covers all elements of the external wall system that influence fire spread.

Is intrusive inspection always required?

In most cases, yes. Without intrusive inspection, the assessor cannot confirm critical elements such as cavity barriers or insulation type.

How long does a FRAEW assessment take?

A typical assessment takes several weeks. Desktop review may take one week, with reporting completed within three weeks after site investigations.

Does FRAEW scope differ between buildings?

Yes. Scope varies based on height, construction type, and risk profile. Higher-risk buildings require more detailed investigation.

Can FRAEW scope support EWS1 certification?

Yes. A robust FRAEW provides the technical basis for completing an EWS1 form.

Who defines FRAEW scope?

A competent assessor defines the scope based on PAS 9980 principles and the specific risks associated with the building.

Conclusion: Why FRAEW Scope Determines Outcome

FRAEW scope sits at the centre of the external wall fire risk appraisal process. It determines the depth of investigation, the reliability of findings, and the credibility of the final report.

If you define scope properly, you reduce uncertainty, avoid repeat work, and reach clear decisions faster. If you limit scope to save time or cost, you risk producing an assessment that fails to satisfy lenders, regulators, or insurers.

You should approach FRAEW scope as a technical framework that supports safe, compliant, and commercially viable buildings.

If you need guidance on defining or delivering FRAEW scope, you should engage an experienced consultancy that can manage the process end to end and provide clear, evidence-based advice.

Contact

If you’re responsible for a residential building and unsure about the safety of its external walls, speak to a competent FRAEW provider. At Anstey Horne, our expert team of fire engineers and surveyors deliver independent, proportionate, and fully compliant FRAEW Surveys.

Commission a PAS 9980-aligned FRAEW first to set your safety strategy, and let that evidence support any EWS1 a lender requests. You’ll cut duplication, reduce resident disruption, and make faster, better-defended decisions.

Get in touch with us today to arrange a no-obligation consultation - please call 020 4534 3130.

If you'd rather we called you, or for further information on FRAEW Surveys please fill in our contact form and we will be in touch.

For further information on all aspects of this service see the collection of articles in our blog.

To commission an FRAEW please call 020 4534 3130.

For further information on Fire Risk Assessment, Retrospective Fire Strategies, FRAEWs or advice in respect of your obligations as a building owner, developer or manager, please contact :