Although it may not seem as though a
building made almost exclusively of bricks or concrete would be susceptible to fire,
that is hardly the case. While that may
have protected homes prior to the widespread installation of electricity, these
days structure fires are usually not created through the spread of wood burning
stoves and fireplaces. Most modern fires
are the result of faulty electrical wiring or gas leaks and explosions (or any
combination of those). That means that fire
can erupt in any building at any time; and, more importantly the precautions are
undertaken to prevent loss or damage to human life.
While preventative measures can and must be
taken to halt fires from starting, that does not negate the need for additional
safety measures should a fire begin. And, because this involves safety, the government
takes fire measures incredibly seriously.
Fortunately, a little preparation during construction is all it takes to
ensure commercial buildings and homes are as safe as they can be at all
times.
The Letter
of the Law
It goes without saying that fire safety and
construction must be governed in order to ensure that the population as a whole
is as safe as it can possibly be. When
it comes to construction in the UK, both domestic and commercial buildings are regulated
by a set of building codes. Each area of
the build is legislated by a building
code which is denoted by a letter. Fire regulations,
insomuch as they apply to construction and existing structures are controlled
and monitored by Part B of the building codes.
Part B of the building codes addresses both
the safe evacuation of people in the event of a fire – and the containment of fire
within compartments (or buildings, as the case may be). In order to ensure compliance to Part B, buildings
must receive certification from the relevant authorities. In commercial buildings, this is a process that
must be undertaken with and during building construction or refurbishment. Often, when it comes to smaller or single unit
domestic buildings, certification can be done on completion as the premises are
occupied.
Evacuation
in the Event of Fire
Although most people associate fire evacuations
with the signs reminding you to take the stairs instead of the lift in the event
of a fire, it certainly is a great deal more intense than that. Evacuation procedures must be established in
the architectural phase of building. Appropriate
routes and procedures must be marked out – and in the case of super high-rise buildings,
multiple steps must be undertaken to ensure people are able to exit a building
safely in the event of a fire.
Part of those evacuation plans will depend on
the containment of fire within compartments.
And, that containment cannot lead to structural weakening until everyone
(except fire crews) have been able to evacuate the building safely. As such, evacuation cannot be mutually exclusive
with containment policies and structures.
Containing
Fires within Individual Compartments
Compartment can mean many different things
when it comes to construction. It can mean
something as small as an electrical cupboard.
It can also mean an individual room, or set of rooms – such as flat or a
group of smaller offices. Regardless of
the size of the compartment, containment ensures that a fire that starts within
an individual compartment does not have the ability to spread to any other compartment.
Walls
and Floors – Once a compartment is defined, the primary
structures must then be fire proofed.
The primary structures include walls, floors and ceilings. Typically, applying fire protection to these areas
is as simple as a coating or a layer of insulation. Where and how this is applied relates directly
to the design and structure of the compartment.
However, it is worth noting that each individual compartment within a building
must be fireproofed along every centimetre of the parameter of that compartment.
Windows – One of the greatest dangers associated with large structure fires
is the shattering of windows and glass. While
fireproofing glass is rather difficult, special glass is used in office building
that combats the high temperatures of fire.
Additionally windows reinforced with wire are used when they are located
nearby primary fire escape routes.
Pipe
work Connections between Compartments – No matter what
the purpose of a building – and usually regardless of its location, services such
as gas, water and electricity are shared between compartments. (There may still be a few powerless buildings
that depend on well-drawn water and individual sewage tanks in remote areas.) Unfortunately, this pipe work negates the structural
fireproofing of individual compartments.
As such, pipes require their own form of insulation where they pass
through the walls and floors of adjoining compartments.
Working
with Pipe Sleeves
Previously, pipe collars were used to prevent
the passage of smoke and fire from travelling along the pipes between compartments. These fire safety accessories embrace pipes on
either side of a fire safe wall. In the event
of a fire, collars would clamp shut, prohibiting the spread of fire through the
pipes. And, while these certainly provide
adequate protection, installing them was not without some difficulties. Primarily, this related to cost and ease of installation;
pipe collars usually required the cutback of existing insulation making it a rather
specialised job.
The new Ultra Universal Pipe Sleeve, however,
is replacing pipe collars in the construction and refurbishment of buildings. This product can fit any plastic and certain metal
pipes up to 168mm in diameter. It easily
pulls apart to any length and width and is then fitted around individual pipes. It is held in place using tape, then fitted
through the aperture in the wall where it is sealed with special adhesives to ensure
absolute protection. In the event of a fire,
Ultra Universal Pipe Sleeve expands up to 30 times its thickness to form a solid
char within the exposed compartment. This
effectively blocks fire and smoke from traversing compartments via the pipe
work.
The use of Ultra Universal Pipes Sleeves,
as well as the other methods required to contain fires means that building occupants
are given enough time to evacuate a structure fire safely – and that always goes
beyond the letter of legislation; it is actually the spirit of the law.
For more information about pipe sleeves
please visit the SIG Technical Insulation website - http://www.siginsulation.co.uk/show_prod.asp?ProdID=3046&CatID=22&SubCatID=43
No comments:
Post a Comment