Greater Manchester Fire and Rescue Service
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More questions answered...
Why are sprinklers important for life safety?
In a large, fast moving fire people often do not know which way to go and may not be able to use hose reels or fire extinguishers.
Sprinklers are completely automatic. They work by themselves and can stop heat and smoke from trapping people.
How can we be sure sprinklers will work in a fire?
Most sprinkler systems are very simple. There are normally no moving parts to fail. The pipes are full of water, usually from the mains. The sprinklers over the fire burst open when they get hot and spray water on the fire. If you have water in your pipes the sprinklers will work.
What do sprinklers cost?
The cost will vary depending on what your building is made of, what you store in it, what you use it for and how good your water supply is.
A useful comparison is that sprinklers cost less than carpet. But unlike carpet, which wears out, your sprinkler system will protect you for the life of the building.
How do sprinklers operate?
Fire sprinklers are individually heat-activated and connected to a network of water pipes. When the heat from the fire plumes hot gases reach the sprinkler and at a specific temperature (usually about 68 deg. C) that sprinkler activates delivering water directly to the source of the heat.
Why are sprinklers so effective?
A fire starts small. If detected and tackled early enough a fire can be controlled with very little water. Fire sprinklers operate automatically even if you are not at home releasing water directly over the source of the fire and sounding the alarm.
How reliable are sprinklers?
Records from Australia and New Zealand (where all fires must be reported) between 1886 and 1986 show that sprinklers controlled 99.7% of all fires where they were fitted.
What about smoke?
Smoke damage is a major cause of loss in fires. In serious cases smoke is the main cause of death. Sprinklers wash the larger particles out of smoke reducing its density and toxicity. In addition the water cools the smoke making it less harmful.
Quick response sprinklers are now available that will attack a fire even earlier in its growth. Fast attack dramatically reduces the amount of smoke that a fire can produce.
What is the life safety record for sprinklers?
Apart from explosions there have never been multiple fatalities in a fully sprinklered building in the United Kingdom.
The total number of deaths from fire, world-wide in sprinklered buildings is only 50 compared to thousands in unprotected buildings. This is a record no other fire system can match.
Can sprinklers reduce damage to the environment?
Sprinklers can increase the sustainability and life expectancy of buildings, by limiting fire development and significantly reducing the amount of smoke, CO2 and other pollutants. Sprinklers use much less water to put a fire out than fire brigade hoses - and lead to much less water damage.
Do sprinklers allow greater building design freedoms?
Sprinklers can allow much more interesting use of space. New building codes work on a performance-based approach to the safety of a building, so by including sprinklers, designers can achieve greater freedom to fulfil their overall vision. They can include features such as:
How sprinklers can benefit different building-types
Residential care homes
Older people, people with mental health problems and those with mobility issues are groups that are most at risk from fire. We consider that all residential care homes should be fitted with sprinklers. In Scotland there is already a requirement within Building Standards for all new build residential care buildings to have automatic
fire suppression systems installed and we think that there should be the same level of protection throughout Britain.
Hundreds of schools in the UK have a fire each year. The impact of these fires is significant, not just in financial terms, but also in terms of the devastating effect on the communities they serve and the disruption to students, teachers and families. The effects on children's education are not confined to lost course work but often include longer travelling times, disrupted social groups and poorer facilities. If sprinklers were considered at the design stage of building a new school or the refurbishment of existing buildings, the costs can be kept to a minimum (as low as one per cent of build costs).
Fires in the home still account for the greatest number of fire deaths and injuries each year. While it would be ideal for all domestic premises to have sprinklers, it is recognised that this is not practical or realistic. We advocate the fitting of sprinklers in the homes of people most at risk from fire - younger people, older people, people with mental health problems and those who have mobility problems. We work in partnership with developers, local authorities and social housing landlords to encourage the installation of sprinklers in the homes of the most vulnerable people.
There is a compelling case to be made for sprinklers in any commercial premises on the basis of loss of production or interruption to business as this is a real impediment to business continuity and productivity. It is a recognised fact that 85 per cent of small and medium businesses that suffer a serious fire either never recover or cease trading within 18 months. The installation of sprinklers in these types of premises could prevent this. Losses due to fire would reduce and fewer businesses would be forced to relocate.