Technicians at Work

Fire Loading Assessment

Fire load is the starting point for estimating the potential size and severity of a fire, and thus, the endurance required of walls, floor-ceiling assemblies, columns, doors, and other parts of the enclosing compartment. This applies also to load-bearing beams and columns, doors, and windows, and in fact, all situations where containment of a building fire is both desirable and necessary.

Photuris engineers can establish the potential severity of a hypothetical future fire by calculating the heat output per unit floor area, often in KJ/m2, calculated from the calorific value of the materials present.

What is a Fire Loading Assessment?

A fire load assessment is an in-depth assessment of the current Fire load, or more accurately fire load density, this is defined as the weight of combustible contents per unit floor area. It is commonly divided into two categories: (1) movable contents fire load consisting of combustible furniture, equipment, goods, and supplies brought in for the use of the occupant; and (2) interior finish fire load consisting of exposed combustible materials permanently affixed to walls, ceilings, or floors plus doors, trim, and built-in fixtures. Fire load is sometimes called fuel load. Typically, all weights are converted to equivalent weights of combustibles having a calorific value of 4,700 Kcal/kg (8,000 BTU/lb)

Our fire engineers will look in as much detail as necessary to ensure that your building is compliant with The Regulatory Reform (Fire Safety) Order 2005 to the fire safety sections of the building regulations.

They will then produce a report, highlighting any areas for improvements for your records and audit purposes.

Additional services we can offer

Our expert teams can create a bespoke fire risk assessment for your building and then offer practical advice to help you implement the findings of the assessment to always deliver more than just a tick box exercise.

Photuris Fire provides a comprehensive assessment and supporting services offering; the following services are available:


  • Fire safety management plans

  • Fire Risk Assessment Audits

  • Review and development of evacuation procedures

  • Evacuation procedures for persons requiring to assistance to evacuate

  • Fire safety training – review and evaluation of existing training programs and their technical content

  • Fire safety training – delivery of bespoke training programs

  • Liaison with regulators regarding enforcement matters

  • Review of staff competences 

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