Roof Eaves And Gable Ends

A gable roof consists of two sloped planes that meet at the ridge or peak and rest on the top plates of 2 parallel exterior walls.

Roof eaves and gable ends.

For the arrangement of the gable end overhang for the standard roof you lengthen the ridge beam beyond the facade for previously verified length using cut rafters. Setting out a simple boxed eave return the corona height start with a corona between 4 in. An eave is defined as the edge of the roof that overhangs the face of a wall. When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in.

Thick and the overhang from the side wall set between 12 in. In contrast a gable or rake is the overhang of a building that occurs on the side that is topped by a gable roof. It is designed for maximum effectiveness and aesthetics. Avoid gable ends that are over 8 in.

Refer to my architectural roof types blog. Rafter a structural member usually slanted to which sheathing is attached. Rake the slanting edge of a gable roof at the end wall of the house. T he eave depth frieze size and return depth this diagram illustrates one possible proportioning system for.

Pitch slope the number of inches of vertical rise in a roof per 12 inches of horizontal distance. I recently built a small outbuilding with a 6 in 12 pitch roof that offers a perfect example for showing the process i use to build eaves and rakes. Use larger rake boards such as 1 by 4 inch and 1 by 6 inch when there isn t an eave overhang on the gable end. Start with the rafter tails the main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall.

After that you should fix the cornice board to the end sides of the ridge and the load bearing beams. Joist in a flat roof a horizontal structural member over which sheathing is attached. Gable or rake trim is attached to the sloping edges of roof gables to prevent wind driven rain from penetrating the exposed undersides of the roof panels that connect the ridge and the eave of your home. Wide especially when the eave overhang is less than 12 in.

The eave roof and gable. One by 2 inch rake boards often cover the exposed top edge of the siding when there also is an eave overhang on the gable end. If the lower section of the roof rafters or rafter tail extends beyond the exterior wall the projection forms an overhang or eave. This is the portion of the roof that protrudes beyond the side of a house or building.

In wood frame construction the primary structural members of a gabled roof frame are the ridge board and the rafters.