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Many hotels and office buildings do not have a fixed fire protection system, relying on smoke detection and intervention of staff with back-up from fire services. However, regulations and attitudes are changing, and increasingly a fixed system is required either by law or for insurance purposes, particularly for taller buildings.

In most existing buildings the retrofitting of a conventional sprinkler system is difficult, time-consuming and expensive. This is primarily because of the additional building works required to accommodate the large bore piping, for instance lowering existing ceilings. Additionally the water discharge from conventional sprinkler systems can cause extensive damage to both building and contents.

Innovative side-wall mounted HI-FOG sprinklers can dramatically reduce the piping requirements (and installation disruption) in hotel bedrooms. All systems use small bore stainless steel tubes - normally 38mm OD for risers and only 12mm OD to the individual sprinklers. This means that installation is fast and little ancillary building work is required, so building down­time is kept to a minimum.

Marioff has supplied a number of systems to protect both large and small hotels and offices around the world. HI-FOG sprinkler systems now protect the 300-bedroom Marriott Regents Park Hotel as well as the smaller Marriott Grand Residence Club in London. Its systems also protect a traditional wooden hotel in Norway as well as a number of hotels and apartment buildings in Italy and Scandinavia.