A pitched roof
is a roof structure where the roof leans to one side of the house. It is also known as lean-to roof. The rafters
are connected to the highest wall and then it is inclined to a lower wall, which then forms the pitched roof.
This method is not recommended practice for construction, it is better to go for traditional gabled roof.
The rafters are often connected into the wall individually or even supported on a wall plate bedded within the wall.
This type of roof can have no joist at all or have a tie or have a joist with a strut to give more strength.