Can we learn from the her it age lost in a fire? - Museovirasto

Water supply
Traditional sprinkler systems require a proper
water supply. A good water supply is also necessary
for manual fire fighting. The fire brigade
normally carries a limited amount of water in
their vehicles. To provide a reliable water supply
is a problem in many locations, particularly in rural
areas. If there is no public water supply, water
can be supplied by:
• A reservoir with pumps
• A reservoir under pressure
• Pumps from a local lake or river
Automatic fire extinction,
sprinkler systems
Traditional sprinkler systems have been used for
more than one hundred years. In buildings without
frost problems, wet sprinklers are recommended
because they are simple, with few components,
and very reliable. In unheated buildings,
there has to be a dry, air-filled sprinkler system.
This is more complicated as it needs a compressor
to maintain air pressure in the pipes. A dry
system is in most cases better than a wet system
with anti-freeze. If the anti-freeze is not properly
diluted, ice problems might occur in “pockets”.
The anti-freeze substance may also damage valuable
surfaces.
Interior sprinkler systems are released by individual
heads activated by temperature. When a
sprinkler head in a dry system is released, the
pipes (normally filled with air) are filled with water.
On the outside of buildings (roofs and facades),
it is normal for several sprinklers to be released
by a separate release system (deluge sprinklers).
The problem with sprinkler heads is that they
are sensitive and should be handled correctly at a
building site in order to prevent false releases.
Loft sprinklers
It is often very difficult and hazardous for the fire
brigade to gain access to lofts during a fire. In
these areas of a building, a fire easily gets out of
control. Priority should be given to installing fire
suppression systems in lofts and towers. If there
is a short distance to the fire brigade, a dry system
supplied with water from the fire brigade can
be an alternative.
Copper sprinkler pipes match well with aged wood.
Automatic fire extinction, water mist
The main problem with traditional sprinklers is
the amount of water released. Even if a false release
is very unlikely in certain buildings, such a
release is unacceptable. This is particularly a
problem in buildings with vulnerable interior surfaces
(such as water-soluble paint) or items. In
some cases, water may also cause serious damage
to ceiling constructions. Water mist was intro-
If possible, it is good to use secondary spaces
to install technical equipment.
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