Roof Over Framing Detail

The roof is held up by walls or posts where one wall or the posts on one side are at a higher level than those on the opposite side.

Roof over framing detail.

4 details for conventional wood frame construction. Roof framing ceiling joists parallel to. The rafters carry the applied loads to the exterior walls. Needed to tie the roof together where the rafters are framed at an angle to each other.

The rise or height of the roof at its peak is the altitude of the triangle. The shed roof or lean to is a roof having only one slope or pitch. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall.

It is a waterproofing layer made of regular felt stacked above the solid. Framing over bearing partition balloon. The run or half the building span is the base of the triangle. Rafters act more like the top chord of a roof truss than as a roof joist.

Box beam gable framing new gable overhang is framed in the form of a box beam hanging off of a new layer of roof plywood roof sheathing cantilevered over the top of the 3 layers of rigid insulation. You will need to attach the porch rafters to the house roof rafters and replace the roofing and flashing. Below is a link to a roof plan with a section that is over framed see note 3. Framing over bearing partition platform construction.

A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. Refer to the details. Time of manufacture producing mill number and the grad. In a rafter roof all of these components are required to provide a stable roof.

If you are tying the shed roof into an existing roof on the house you will need to remove the shingles and sheathing to expose the roof framing. The exposed edges of the 3 layers of rigid insulation are no longer exposed. It is used where large buildings are framed under one roof where hasty or temporary construction is needed and where sheds or additions are erected. Over framing is when you frame a roof section on top of another roof section such as when joining a l shaped roof with each section at right angles to each other etc.

Rafters should be attached to the header beam using hurricane ties. And the line length measurement from the roof peak to the building wall is the hypotenuse. The roof framing must support the roof decking and sheathing and resist loads applied to the sheathing and transfer loads vertically to support walls or frames. Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain.