Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants
Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants



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Lawrence Webster Forrest
Legion House
Lower Road
Kenley
Surrey
CR8 5NH

Tel: +44 (0)20 8668 8663 Fax: +44 (0)20 8668 8583
E-mail: fire@lwf.co.uk

General Bulletins

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Fire - The External Risk

When we consider fire safety, our focus is normally from within, what can we do to prevent the occurrence of fire and how we can limit its damage. Whilst this is the correct stance to take, we must also identify and consider the risks from external sources.


Fire Precautions - Compartmentation

Fire compartmentation is a vital part of any fire safety design. Compartmentation is a tool that is used in the vast majority of buildings, other than simple low rise developments.


Unwanted Fire Signals

Unwanted Fire Signals is the formal term given to what has been universally referred to as 'false alarms'. Unwanted fire signals is considered to encompass the issue and this will become apparent as we expand on this issue.


Management of Fire Safety

As with most elements of Health & Safety, management of fire safety is fundamental to its success. Whilst fire precautions will play their role in any given situation, it is often the success, or failure of management that has the most significant impact on the outcome.


A managed response to a fire

Much technical data is available which discusses the risk of fire within buildings and the measures which are employed to prevent fires, reduce their growth and permit the safe evacuation for occupants, however, little formal guidance is available for building managers on responding to a fire.


Types of Fire precautions, their use as Compensation Features

Fire precautions are often categorised into two groups, active and passive. A fire safety design will rarely rely on only one or the other categories, usually a combination of fire precautions will be necessary to achieve a safe design.


Means of Escape Design

As designers of buildings, we must acknowledge that any fire safety design can fail, i.e. a fire could occur.


Human Behaviour in Fire

A major consideration in any fire safety design is human behaviour. Failure to consider this aspect could lead to a failure in the design.


Fire fighting hose reels

There is a growing trend for occupiers to remove the existing fire-fighting hose-reels from their premises. This is due to a number of factors:


Fire Safety on Construction Sites

Fire Safety / Fire Engineering is used to protect buildings and their occupants from fire. However, fire safety and the protection of people and buildings should start before the construction phase, an area that is sometimes overlooked.


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FIRE SAFETY BLOGS

  • Fire Engineering Design and Risk Assessment - Smoke Management System Components - Part 23

    In this Fire Engineering Design and Risk Assessment blog series for Architects and others involved in building design, we have been looking at fire and smoke ventilation. In the last blog, Part 22, we talked about the use of hot smoke tests in some parts of the world and how they can be carried out without damaging the premises in question.  In Part 23, we are going to look at the components of smoke management...

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  • Facilities Management & Fire Safety - Locating Sprinkler Heads - Part 13

    In this blog series for those who work in Facilities Management and who have an interest in or responsibility for fire safety, we have been looking at fixed fire-fighting systems. A sprinkler system design is usually as individual as the building which contains it. In part 13, we will look at how sprinkler heads should be located.In the vast majority of cases, if a sprinkler system is present in a building it should be...

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  • Facilities Management & Fire Safety - Sprinkler System Heads & Heat - Part 12

    In this blog series for those who work in Facilities Management and who have a responsibility for or interest in fire safety, we have been looking at how sprinklers operate in buildings and in Part 11, we began to look at sprinkler heads. In Part 12, we’re going to discuss the effect of temperature on the operation and design of sprinkler heads and how the choice of the most appropriate type of sprinkler head can...

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  • Fire Engineering Design and Risk Assessment - Hot Smoke Tests - Part 22

    In this blog series for Architects and others in the building design business, we have been looking at fire and smoke ventilation. In Part 21 of the series, we talked about the reliability and performance of a given design. In this blog we will give an overview of Hot Smoke Tests and how they are used.There is currently no requirement for hot smoke tests in the UK and although their use has been touched...

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  • Grenfell Tower fire

    LWF have received a number of enquiries from the media following this morning’s terrible fire at Grenfell Tower. There are a number of factors that may have contributed to the rapid fire spread witnessed in the early hours of this morning and potentially a number of combinations of these factors are possible. There is insufficient information available at this time from which to draw meaningful conclusions regarding the cause and development of this fire. Historically, major...

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Case Studies

The Wohl Neuroscience Institute - Fire Safety, Strategy & Engineering
Key Facts: Client: King’s Clinical Neuroscience Institute Project Manager: MACE Ltd Designers: Devereux Architects/Allies and Morrison Approximate Size: 7,400m2 Description of the Project:...

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General Bulletins

Fire - The External Risk
When we consider fire safety, our focus is normally from within, what can we do to prevent the occurrence of fire and how we can limit its damage.  Whilst this is the correct stance to take, we m...

Read more..

Technical Bulletins

Evacuation Modelling - Factor in Human Behaviour
Evacuation of buildings can be analyzed in different ways. Approved Document B (ADB) which provides guidance on meeting the requirements of the England and Wales Building Regulations with regard to fi...

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