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

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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Bulletins
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FIRE SAFETY BLOGS

  • Fire Engineering Design and Risk Assessment - Compartmentation & Life Safety - Part 5

    In LWF’s Fire Engineering blog series for Architects and others working in the building design business, we have been discussing compartmentation. In part 4 of this series, the ways in which compartmentation supports life safety functions in a fire situation were summarised. In part 5, we look at the ways the issue of compartmentation and life safety is covered in the national building regulations, before looking at the spread of fire. 

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  • Fire Safety for Healthcare Premises - Compartmentation & Fire Hazard Rooms and Areas - Part 39

    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 38 of this series, the importance of fire stopping the joints between fire separating elements such as walls and any openings was discussed. In part 39, we will continue in that area by looking at fire hazard rooms and areas.While most types of buildings require the protection...

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  • Facilities Management & Fire Safety - Content of Fire Training - Part 13

    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 the necessity for staff training and fire drills. In part 12 we looked at the implications of committing to fire safety training in a business or organisation in terms of time commitment. In part 13, the necessary content of the fire safety training sessions is outlined. All comprehensive...

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  • Fire Engineering Design and Risk Assessment - Maintenance of Compartmentation - Part 4

    In LWF’s Fire Engineering blogs for Architects and others who work in the building design business, we have been looking at compartmentation of buildings to avoid fire spread from the compartment of fire origin to any other area. In part 3 of this series, the fire-resisting performance of elements which go into comprising a fire-resistant compartment was discussed. In part 4, we discuss how a compartment’s integrity is only as good as its ongoing maintenance,...

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  • Facilities Management & Fire Safety - Staff Training & Fire Drills - Part 12

    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 staff training and fire drills. In part 11 of this series, methods of training were discussed and in part 12, we will continue from that point to discuss the practicalities of who should receive training and how it should be organised.Adequate fire training should be given to...

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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...

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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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