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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Freephone: 0800 410 1130
E-mail: fire@lwf.co.uk

Technical Bulletins

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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 fire safety, specifies width of exit routes such that the time required for occupants to flow out of a prescriptively designed enclosure, containing a maximum design population is 150s (2.5 minutes).


Mechanical Smoke Ventilation Systems (MSVS)

Until recently, prescriptive documents such as Approved Document B (ADB) and British Standards gave guidance on smoke control systems primarily by natural means (i.e. external automatic opening vents (AOV’s) and natural smoke shafts) and pressure differential systems (namely pressurisation systems).


Mechanical Smoke Ventilation Systems (MSVS)

Until recently, prescriptive documents such as Approved Document B (ADB) and British Standards gave guidance on smoke control systems primarily by natural means (i.e. external automatic opening vents (AOV’s) and natural smoke shafts) and pressure differential systems (namely pressurisation systems).


Property and Business Continuity Protection in the UK

Building Regulations are intended to ensure that a reasonable standard of life safety is provided, in case of fire, and do not impose any requirements on the property and business continuity protection of a building.


Fire Safety in the Design, Management and Use of Residential Buildings - Code of Practice

The new code of practice for fire safety in the design, management and use of residential buildings BS9991 is published by BSI and came into effect on 31 December 2011.


Qualitative Design Review (QDR)

Qualitative Design Review or QDR is defined in PD 7974: 2001 as the initial stage of any engineering design in which the basic design parameters for a project are established and the scope and objectives of the fire strategy can be defined.


Water Mist Fire Protection in the UK

The use of water mist systems in the UK has increased over the last decade due to a number of reasons, the advantages being:


Fire Resistant Ductwork and Dampers

An important part of the infrastructure of a building is the ducting network that runs throughout the premises, it is often invisible, but is a key element to the environmental operations in a building.


The Building Regulations 2010

The requirements of Regulation 38 of the Building Regulations 2010 are those formerly covered under Regulation 16b and relate to the fire safety information to be provided by the person carrying out work.


Rising to the Residential Challenge

The recent market downturn has affected the housing industry with many developments being put on hold. As the market begins to recover and demand for homes starts to rise again many developers are reviewing residential schemes with a desire to develop more innovative residential layouts. This bulletin discusses some of the fire safety challenges of residential developments are described and how the application of performance based design can deliver economic, safe and creative residential layouts.


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FIRE SAFETY BLOGS

  • Fire Engineering Design and Risk Assessment - External Access for the Fire Service - Part 42

    In LWF's Fire Engineering blogs for Architects and others in the building design business, we have been looking at the subject of firefighting. In part 41 of this series, we discussed where to fit landing valves in rising mains, taking into account travel distance for the firefighters to the place of fire origin. In part 42, we look at what external access to the premises for the Fire Service should be provided.In England and...

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  • Fire Safety for Healthcare Premises - Fire Prevention & Waste Management - Part 76

    In LWF's blog series for healthcare professionals, the aim is to give information on best practice of fire safety in hospitals and other healthcare premises. In part 75, LWF discussed good housekeeping measures which should be implemented in a healthcare venue to avoid instances of fire. In part 76, we begin to discuss waste management from a fire prevention point of view. The effective management of waste on an ongoing basis is one of the...

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  • Facilities Management & Fire Safety - Community Fire Safety - Part 2

    In LWF's blog series for those who work in Facilities Management, or who have an interest in or responsibility for fire safety, we have been looking at community fire safety. In part 1, it was established that while there was scarce regulation on fire safety standards in residential buildings, such dictates would have little effect on owner/occupier domiciles. Fire safety education, however, has proved more successful and the informal beginnings of this lay with the...

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  • Fire Safety for Healthcare Premises - Fire Prevention - Part 75

    In LWF’s blog series for healthcare professionals, the aim is to give information on best practice of fire safety in hospitals and other healthcare premises. In part 74, LWF discussed good housekeeping measures which should be implemented in a healthcare venue to avoid instances of fire. In part 75, we will continue from that point. Rubbish can accumulate in certain spaces which are out of the way and ignored, such as lift wells, behind radiators,...

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  • Facilities Management & Fire Safety - Community Fire Safety - Part 1

    In LWF’s blog series for those who work in Facilities Management, or who have an interest in or responsibility for fire safety, our aim is to give information on best practice and fire engineering. In part 1 of this series, we will take a look at Community Fire Safety, a term which, while it relates in the main to domestic fire safety, can also be applied to business environments. Community Fire Safety (CFS) could be...

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Case Studies

Brentwood Town Hall Redevelopment
The redevelopment of Brentwood Town Hall included renovating the existing five storey property to provide police and council offices, a community hub and lettable office space across the basement, gro...

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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...

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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...

Read more..

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