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What is a Pitched Roof?
The primary function of a house is to provide shelter, and one of the most crucial parts is the roof. It protects from rain, heat, snow, etc. Roofs come in flat or pitched roofs. In areas with adverse wet conditions like snow or rains, pitched roofs became an automatic selection as they do not accumulate debris or water in such situations.
A pitched roof has decks or constructions with surfaces having a steep slope for sheltering the building structure. The roof is made of a system of rafters, joists, and purlins arranged in a triangular shape. The roof is constructed symmetrically with equal slopes and set towards a central ridge.
In pitched roof construction, the slope is at least 20 degrees for slates and 50 to 60 degrees for tiles. The slope of slope in a pitched roof depends on the minimum slope necessary to drain out the water and other debris to the gutter. The slope will also depend on the site's weather conditions and the nature of the construction material. The slope in a pitched roof should be in a way that it is easy to access during repairs and installation.
Pitched roofs are generally lighter than a flat roof and mainly constructed of steel or wood. Due to pitched roofs construction, it is advisable to add false ceilings, particularly in hot and humid areas. The false ceiling can be made of fireboard, asbestos cement sheet, plywood, glass wool, etc. Roofs that contain shingles, pre-coated sheets, and Mangalore tiles are not recommended in flat roof constructions as they are more prone to leakages. That’s why these types of materials are more common in pitched roof constructions.
Types of Pitched Roof
There are several variations of pitched roofs, such as:
Mono pitch roof. Slopes from either side of the building are used to make extensions.
Couple roofs. A most popular type of roof with two lengths of rafters leaning against each other.
Closed couple roof. This structure has an extra ceiling joist and a horizontal timber to secure the structure.
Collar roof. The ceiling joists are high, and there is extra space to construct a room upwards, thus reducing the wall height.
Purlin Roof. Using struts in purlin roofs adds an extra space that could be used for storage or, ultimately, accommodation.
Benefits of Pitched Roofs
Pitched roofs are cheaper to build than other types due to the materials used and the expected life cycle. An adequately installed pitched roof will only need renovations after 30 years.
Repairs in pitched roofs can be done without added annexes or attachments. Other type4s like flat roofs, become complicated to repair when damaged.
Sustainability is also possible in pitched roofs since it can be installed with power-generating solar panels. Some studies also show that an average pitched roof saves more CO2 than other types.
Pitched roofs can be built long enough to create space for accommodation. This is an invaluable factor should there be a need for an extra room.
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