Examples for Roof Layout Determinations

Gable roof

The simplest roof is a gable roof. The building outline contains four building sides, two of which receive a 90° inclination for the gables. The other two building sides receive the inclination of the roof planes. Using the eave height, the roof is raised to the desired elevation and the eave overhangs enlarge the roof surfaces.

Gable roof with shed extension

By adding additional building sides, a roof plane of the gable roof from the first example can be given a shed extension. The shed extension should form a continuous plane with the primary main roof plane, which requires the appropriate eave height. To simplify the calculation of the matching eave height for the shed extension, the reference side to the other eave of the same roof plane is specified. The program then calculates the eave height automatically.

Hipped roof, clipped hipped roof, owl dormer

As soon as the gable side of the gable roof from the first example also receives a roof pitch and corresponding eave height, a hipped roof or clipped hipped roof is created, depending on whether the same eave height as the main roof is used or a higher one.

In the far north, owl dormers are commonly incorporated. This is a kink in the clipped hipped plane, similar to a gable above the hipped surface. This can be entered very simply by changing the pitch on the respective building side. This is shown in the accompanying video.