Interactive Source: Fire Statistics Great Britain, 2010 - 2011 “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Interactive Source: Fire Statistics Great Britain, 2010 - 2011 “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Fires can produce a lot of smoke Interactive Fires can produce a lot of smoke “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Requirement for smoke ventilation Interactive Requirement for smoke ventilation “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural smoke ventilation Interactive Natural smoke ventilation Residential buildings not classed as ‘Small Single Stair Buildings’ Source: Building Regulations 2000, Approved Document B – 2006 edition With this being such a complex topic we’ll just cover the basics and look at a couple of examples. “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Methods of smoke control Interactive Methods of smoke control Natural Mechanical Direct to outside Pressurisation Using a smoke shaft Depressurisation “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural smoke ventilation Interactive Natural smoke ventilation Direct to outside 1.5 square meter ventilator to an external façade/roof Top of the ventilator to be positioned at least as high as the top of the door to the stair 1.0 square meter ventilator located at the head of the stair “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural smoke ventilation Interactive Natural smoke ventilation Using a smoke shaft 1.0 square meter ventilator opening into a 1.5 square meter smoke shaft Top of the ventilator to be positioned at least as high as the top of the door to the stair Smoke shaft should be vertical from base to head 1.0 square meter (minimum) ventilator located at the head of the shaft Smoke shaft to extend 2.5m higher that the ceiling of the upper most storey served 1.0 square meter ventilator located at the head of the stair “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Mechanical smoke control Interactive Mechanical smoke control Pressurisation Designed, installed and commissioned to British Standard BS EN 12101-6:2005 Class A system – means of escape. Defend in place To maintain a pressure within the stair of 50Pa (with all doors closed) To provide an open door velocity of 0.75 meters per second through the stair door on the fire floor (all other doors closed) “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Mechanical smoke control Interactive Mechanical smoke control Depressurisation Designed, installed and commissioned to British Standard BS EN 12101-6:2005 Class A system – means of escape. Defend in place To achieve a pressure difference of 50Pa between the corridor/lobby and the stair To provide an open door velocity of 0.75 meters per second through the stair door on the fire floor (all other doors closed) “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural forces in smoke control Interactive Natural forces in smoke control Buoyancy – stack effect “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural forces in smoke control Interactive Natural forces in smoke control Wind effects – negative/positive pressure “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Natural forces in smoke control Interactive Natural forces in smoke control Wind effects – negative/positive pressure “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

The mechanical advantage in smoke control Interactive The mechanical advantage in smoke control Predetermined extract rate Not affected by wind – Negative/Positive Pressure Reliability – 100%? “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

Regulatory Reform (Fire Safety) Order 2005? Interactive Regulatory Reform (Fire Safety) Order 2005? Who is responsible for meeting the order? Under the order, anyone who has control of premises or anyone who has a degree of control over certain areas or systems may be a ‘responsible person’. Fire authorities no longer issue fire certificates and those previously in force will have no legal status. Enforcing the order Fire authorities will be the main agency responsible for enforcing all fire-safety legislation in non-domestic premises including common parts of blocks of flats. If there is a very serious risk to life, the fire authority can issue a notice preventing the premises being used for certain things (such as sleeping), or preventing people from using all or part of the premises. This power is shared with housing authorities in properties which several households live in. “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

“If a fire broke out could the occupants escape safely?” Interactive Is it safe? To ensure that a building is safe to be occupied is not always easy, regulations and guidance change. However the basic principal applies – “If a fire broke out could the occupants escape safely?” The Interactive ‘SmokEvac’ system provides a safe and simple method of protecting the primary egress route. “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

‘SmokEvac’ – residential stair pressurisation system Interactive ‘SmokEvac’ – residential stair pressurisation system “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner

“There’s so much smoke in here....we can’t get out” Interactive “There’s so much smoke in here....we can’t get out” Mail on Sunday – 5th July 2009 “Providing Engineered & Code Compliant Smoke Control Solutions” with systems partner