Framing A Gambrel Roof Overhang

Build barn style gambrel roof trusses.

Framing a gambrel roof overhang.

Installing the roofing sheets. As you can notice in the image you need to use regular trusses and to install 7 blockings as to get a 10 overhang. Build gable roof trusses 3 12 pitch. Attach the components to the gambrel ends and secure them to the framing with 3 1 2 galvanized screws after drilling pilot holes.

Build gable roof trusses 6 12 12 12 pitch. The cross section of a gambrel roof is similar to that of a mansard roof but a gambrel has vertical gable ends instead of being hipped at the four corners of the building. This means that for every 12 horizontal run you must have at least 3 of rise. For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves.

Shed framed with gambrel trusses building a gambrel shed truss when you are designing your shed roof whether it be a gambrel gable or saltbox you should never have any roof pitch less than a 3 12. 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. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. Nail along the edges of the osb or plywood driving the nails into the rafters every 8 inches 20 cm with 8d common nails.

A rake on the gable end of the roof can be created with the construction of additional roof framing. To create eaves on your barn style roof you can use a rafter tail. Nail osb or plywood onto the rafters to enclose the roof. This serves the purpose of the eave and creates shade and protection against nature s elements.

This video will. Start with the top corners of the roof first. A gambrel roof overhangs the façade whereas a mansard normally does not.