A roof with sloping surface is known as pitched roof.
Basic Elements
- Lean to roof
- Gable roof
- Hip roof
- Gambrel roof
- Mansard or curb roof
- Deck roof
Lean to roof
- Simplest type
- Small span rooms or for verandah
- Slope only on one side
Gable roof
- Common type
- Slopes in two directions
- Slopes meet at ridge
- A vertical triangle is formed at end face.
Hip roof
- Four sloping surface in four directions
- Sloped triangles are formed at end faces.
Gambrel roof
- Similar to gable roof
- Slopes in two direction but there is a break in each slope.
- A vertical face is formed at each end.
Mansard roof
- Similar to hip roof
- Slopes in four directions but each slope has a break.
- Thus sloping ends are obtained.
Deck roof
- Similar to hip roof-slopes in all the four directions.
- A deck or plane surface is formed at the top.
Type of Pitched Roofs
- Single roofs
- Lean to roof
- Couple roof
- Couple close roof
- Collar beam roof or collar tie roof
- Double or Purlin roof
- Triple membered or framed or trussed roof
- King post roof truss
- Queen post roof truss
- Combination of king post and queen post truss
- Mansard roof truss
- Truncated roof russ
- Bel-fast roof truss or latticed roof truss
- Composite roof truss
- Steel sloping roof trusses