What orientation do roof rafters have that contributes to the roof’s structure?

Roof rafters are primarily oriented diagonally, which plays a crucial role in the overall structural integrity of the roof. This diagonal orientation allows rafters to effectively transfer the weight and loads from the roof down to the walls and foundation of the building. By having angle rafters that slope downwards from the peak of the roof to the eaves, the design facilitates the efficient shedding of rainwater and snow, which reduces the risk of water accumulation on the roof and potential structural damage.

This design also provides additional stability and support to the overall framework of the roof. If rafters were solely horizontal or vertical, they would not be able to handle the loads and forces acting on the roof as effectively, potentially resulting in structural failures. Therefore, the diagonal orientation of roof rafters is essential for fully supporting the roof while ensuring it performs well under various environmental conditions.