Wednesday, April 17, 2013

Roofing styles and Related Concerns

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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