Part of the BRE Trust BRE Global Protecting People, Property and the Planet The Macroeconomic Impact of Commercial Fires – Part 1 Dr Debbie Smith OBE Director,

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Presentation transcript:

Part of the BRE Trust BRE Global Protecting People, Property and the Planet The Macroeconomic Impact of Commercial Fires – Part 1 Dr Debbie Smith OBE Director, Fire Sciences and Building Products, BRE Global Ltd

BRE Global Protecting People, Property and the Planet A UK study into the environmental impact and cost benefit of fire sprinklers in warehouses Acknowledgements; Owen Abbe – main technical contributor to environmental impact analysis Jeremy Fraser-Mitchell – main technical contributor to cost benefit analysis for this study Corinne Williams – project support and stakeholder engagement

BRE Global Protecting People, Property and the Planet Introduction –In response to increasing annual costs of fire, the Business Sprinkler Alliance commissioned a study with the objective to determine whether it is cost effective to install and maintain fire sprinklers in warehouses in England and Wales. –The first part of the project was a “cradle to site” assessment of an ‘average’ warehouse fire, considering both the environmental impacts and the monetary costs. –The second, larger phase of our research, which was the primary focus of the study, looked at a whole-life cost benefit analysis for the installation of sprinklers, for three ranges of warehouse sizes.

BRE Global Protecting People, Property and the Planet Life cycle stages using BRE Methodology to calculate Ecopoints

BRE Global Protecting People, Property and the Planet Contents specification for the case study warehouse 50% class II commodity (non-combustible contents in heavy carton) and 50% standard plastic (combustible plastic contents). The content loading was assumed to be 75% of the total warehouse capacity

BRE Global Protecting People, Property and the Planet Ecopoints results

BRE Global Protecting People, Property and the Planet Ecopoints results considering fire Environmental impactWithout sprinklers With sprinklers CO 2 released by burning of contents (Ecopoints, partial) 2,8909 CO 2 embodied in replacement contents (Ecopoints, partial) 7,67517 CO 2 embodied in rebuilding, should demolition occur (Ecopoints, partial) 7013 CO 2 equivalent value for water usage (Ecopoints, partial) 373 Total CO 2 released / embodied in rebuild or replacement 11,30331 Water used in fire-fighting (Ecopoints, partial)44623

BRE Global Protecting People, Property and the Planet Whole life cost benefit analysis –Generic warehouse buildings were categorised in three size ranges: –small, 0 to 2,000m 2, –medium, 2,000m 2 to 10, 000m 2 and –large, greater than 10, 000 m 2. –The frequency of fires per (building.year) were estimated from the statistics for the number of buildings of a given type, the estimated proportion with sprinklers, and the number of fires observed. –Consequences expressed in terms of; –Fire and smoke damage –Deaths and injuries –Carbon dioxide emissions or embodied carbon dioxide –Water usage –Unemployment

BRE Global Protecting People, Property and the Planet Results – Breakdown of average costs considered Quantity “Small” warehouse (< 2,000 m 2 ) “Medium” warehouse (2-10,000 m 2 ) “Large” warehouse (> 10,000 m 2 ) No sprinkler SprinklerNo sprinklerSprinklerNo sprinkler Sprinkler Cost of total area damaged£116,427£37,540£1,511,289£36,663£1,861,284£37,907 Cost of injuries£658£1,692£2,217£1,674£2,448£1,634 Cost of fatalities£6,602£17,665£23,228£17,808£25,551£17,686 Cost of CO 2 released in fire£202£20£2,661£20£2,659£20 Cost of CO 2 embodied in replacement £537£52£7,081£52£7,077£53 Cost of water used in firefighting£5,017£3,609£8,376£3,579£5,666£3,599 Cost of CO 2 embodied in rebuild£106£13£866£8£649£10 Cost of unemployment£15,818£1,822£196,268£1,655£192,518£2,706 Total costs£145,364£62,410£1,751,983£61,457£2,097,849£63,612 (Values quoted in 2010 prices, and based on best estimates of fire and smoke damage costs)

BRE Global Protecting People, Property and the Planet Results – Average whole life costs (warehouse buildings) Quantity “Small” warehouse (< 2,000 m 2 ) “Medium” warehouse ( ,000 m 2 ) “Large” warehouse (> 10,000 m 2 ) No sprinkler SprinklerNo sprinklerSprinklerNo sprinkler Sprinkler Total cost of fire£21,895£16,059£845,065£22,093£3,824,157£14,695 Cost of insurance over lifetime£32,630£16,315£139,604£69,804£723,504£361,731 Total cost of sprinklers £66,349 £184,551 £848,029 Total Whole Life Costs£54,525£98,722£984,669£276,448£4,547,661£1,224,454 (Values quoted in 2010 prices, and based on best estimates of fire and smoke damage costs)

BRE Global Protecting People, Property and the Planet Conclusions 1 –For warehouses larger than 10,000m 2, the average whole life costs for buildings with sprinklers are between 2 and 5 times smaller than the corresponding average costs for buildings without sprinklers. A similar level of cost-effectiveness was found for warehouses between 2,000 and 10,000m 2 in area. –Sprinklers were, on average, not cost-effective in warehouses with an area below 2,000 m 2. The lifetime referred to is that of the sprinkler system, which is on average, 45 years.

BRE Global Protecting People, Property and the Planet Conclusions 2 –There is an overall net environmental benefit to installing sprinklers including a reduction in CO 2 emissions from fire, reduced size of fire, reduced quantities of water used to fight fire and resultant embodied CO 2 savings from contents replacement and warehouse rebuild –It is estimated that 20% of warehouses between 2,000 and 10,000m 2 in area are fitted with sprinklers. For warehouses above 10,000m 2 in area, the estimated fraction with sprinklers is 67%. In a hypothetical scenario where all warehouses above 2,000m 2 in area are fitted with sprinklers, the study indicates that the annual saving could be between £60m and £210m. –Full version of final report available at; content/uploads/downloads/2014/01/BRE-Report.pdf