The
roof being the highest and the outermost covering of your house is the first
thing that can be seen from the outside and is the first line of defense that
you may have against adverse weather effects such as snowfall, rain and
sunlight. A beautiful looking and appropriate roof adds additional value to
your house. So the roof of your should be both, beautiful looking and strong
enough to defend the underlying building.
There
are certain roofing styles, based upon the shape and construction technique. We
can classify them into three broad categories. Each of the categories may
contain further divisions and styles. The three broader categories are:
·
The
Flat Roofs
·
The
Pitched Roofs
·
The
Shell Roofs
We
will look at each of the categories one by one with the advantages and
disadvantages associated.
Flat
Roofs:
As
the name suggests, this kind of roof is flat looking with a slope ranging from 01
to 05 degrees from the flat ground. Its construction scheme and technique is
the same as the floor construction. Sometimes the roof has a special top
finishing layer known as terracing that protects it from the adverse weather
effect. It is made up of concrete, most of the times. But sometimes it may also
be made up of material like metals and tiles.
Flat
roofs have certain advantages, significant of which are that they could be utilized
for the living purposes. Due to their flat nature and strong material, they can
support load and are relatively safer than the other roof types. Moreover they
provide proper ventilation and are architecturally very good. In case of urgent
need of a top floor construction, it can be started immediately. They are
economical as compared to other roof types, are long lasting and require
minimal roof maintenance.
The
disadvantages associated with the flat roofs are that they are not suitable for
the regions that may have heavy snowfall. Another disadvantage that is more
related to the commercial side is that they cannot be utilized for industrial
purposes without intermediate support.
Pitched
Roofs:
Pitched
roofs are mostly seen at the places and regions where there is a probability of
snowfall and heavy rains. They have a slop of over 10 degrees that helps the
snow to slip off the roof. Moreover, the slope of the pitched roof also varies as
per the climate of the region and average weather conditions. There are also
further shapes available in the category including hip and pyramid roof. They
are generally made up of wood and or metal.
The
advantages of such roofs are that they take a short time to be built. They do
not have problems of water or snow drainage. It may prove economical compare to
the flat roofs for the industrial sheds.
The
disadvantages associated with such roofs are that they may have a leakage
problem. They are not durable and construction of additional floor may not be
undertaken immediately if a building has pitched roof. They may prove to be
costly in case that you may need false ceiling for the thermal comfort.
The
Shell Roofs:
These
are not used on a large scale as they are meant more to fulfill certain
requirements. Moreover they look architecturally very beautiful and eye
catching. Mostly they are seen in public places where there is a need to cover
an area without having obstructions from pillars or columns.
The
advantages of such roofs are that they cover a large area without intermediate
support or columns. Leakage is not a problem with this type roof. They can be
used to cover the area that is supposed to be used for the gathering or
conferences.
Disadvantages
of this type are that it cannot be used for upper floor construction. They may
also have ventilation problems. Moreover the cost of its construction is very
high.
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