Roof Eaves And Gable Ends

T he eave depth frieze size and return depth this diagram illustrates one possible proportioning system for.

Roof eaves and gable ends.

Wide especially when the eave overhang is less than 12 in. Thick and the overhang from the side wall set between 12 in. Pitch slope the number of inches of vertical rise in a roof per 12 inches of horizontal distance. In contrast a gable or rake is the overhang of a building that occurs on the side that is topped by a gable roof.

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. The top edge of the board rests against the roof decking and the bottom edge covers the siding or brick. It is designed for maximum effectiveness and aesthetics. Avoid gable ends that are over 8 in.

Rafter a structural member usually slanted to which sheathing is attached. 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. To 18 in depending on the style of the building. Setting out a simple boxed eave return the corona height start with a corona between 4 in.

Rake the slanting edge of a gable roof at the end wall of the house. Then load bearing roof beams fixed to the trusses are extended in the same way. 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. Joist in a flat roof a horizontal structural member over which sheathing is attached.

The eave roof and gable. After that you should fix the cornice board to the end sides of the ridge and the load bearing beams. When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in. An eave is defined as the edge of the roof that overhangs the face of a wall.

If the lower section of the roof rafters or rafter tail extends beyond the exterior wall the projection forms an overhang or eave. Refer to my architectural roof types blog. 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. This is the portion of the roof that protrudes beyond the side of a house or building.

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.