Pitched Roofs and Types of Roofs
- The roof is the covering on the uppermost part of a building or shelter which provides protection from animals and weather as well as rain or snow, heat, wind and sunlight.
- Each word also denotes some framing or structure which maintains that covering.
- The components of a roof are dependent on the purpose of the building.
Types of Roofs
- A pitched or sloping roof
- Flat roof or terrace roofs
- Curved roofs
A roof with a sloping surface is known as a pitched roof.
Pitched roofs are basically of the following forms:
- Gable roof
- Hip roof
- Gambrel roof
- Mansard or curb roof
- Deck roof.
- Lean-to-roof:- This is the simplest type of sloping roof, provided either for a room of small span or for the verandah. It has a slope on only one side.
- Gable roof:- This is the common type of sloping roof that slopes in two directions. The two slopes meet at the ridge. By the end face, a vertical triangle exists formed.
- Hip roof: Here roof is formed by 4 sloping surfaces in 4 directions. About the end faces to sloped triangles exist formed.
- Gambrel roof:- This roof, like a gable roof, slopes in two directions, but there is a break in each slope. At each end, the vertical face is formed.
- Mansard roof:- Mansard roof, like a hip roof, slopes in four directions, but each slope has a break Thus, sloping ends are obtained.
- Deck roof:- A deck roof has slopes in all four directions and a deck or a plane surface is a form at the top.
Elements of a pitched roof
- Ridge:- This is the highest point or peak of the roof.
- Hip:- This is the high point where two adjoining roof sections meet.
- Valley:- When two sections of the roof slope downward and meet, they create this third element called a valley.
- Pitch:- This refers to the slope or steepness of the roof.
- Eaves:-This refers to the part of the roof that hangs over the rest of the home.
- Gables:- These are the triangular portions of the ends of the home, which extend from the eaves to the peak of the roof.
- Dormer:- These are the sections of the home that extrude from the roof. They do usually computed as a way to bring light inside the upper level of your home.
- Rafter:- A rafter is one of a series of sloped structural members (beams) that extend from the ridge or hip to the wall plate, downslope perimeter or eave, and that are designed to support the roof deck and its associated loads.
- Purlins:- these are horizontal wooden or steel members used to support the common rafter of a roof when the span is large.