Gambrel Roof Eave Detail

Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape.

Gambrel roof eave detail.

This gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. The second looks at the details of boxed eave gable end returns. The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. However pre cut trusses for a gambrel roof often require that the homeowner build and create their own eaves as this style of roof has very little if any overhang.

This first installment of a two part series focuses on eaves that do not return onto the gable. A gambrel style shed roof offers the most storage space in the attic when compared to a gable or saltbox style shed roof. Eave rake edges 3d view has cad. Eave rake flashing with gutter.

What is a gambrel roof. A gambrel roof is a popular roof style on many contemporary barns and sheds. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. To determine exactly what the rafter tail will look like i always make a full size drawing on a scrap of plywood of all the eaves elements including framing and finish materials see illustration above.

Post frame estimating roof types 8 post frame building details 9 post frameflashings trim 10 13 post frame trim details. Gambrel roofs are symmetrical with two slopes on each side of the roof. Dennis most gambrel roofs on the barns around here have an overhang similar to the eaves assuming that is what you are thinking the way i would do it is inlay a 2x6 on the flat into the outside rafter truss the one the gable wall mounts too so that it gets but nailed to the second rafter truss in. Use this cantilever to support the overhang framing sheet with the rest of the roof and done.

The three primary variables to consider when designing the eaves for a gable roof are the width of the gable trim the projection of the eaves and the details at the corner of the gable ends. Gambrel roof detail at upper transition of slope has cad. 13 30 box gable 13 endlap rain carrying table 14 eaves 15 16 ridges 16 18 gables 18 19 flying gable 20 endwall 21 sidewall valley 22 gambrel transition 23 outside corner 24. Gambrel roof detail at lower transition of slope.

A gambrel roof or barn style roof provides a great way to create extra space in the attic or at the top of the barn. Think of a shallow gable and a steep gable then place the shallow atop the steep. The gambrel structure allowed a wider roof span which provided extra habitable space in the attic.