Framing Roof Valley Rafters

Cuts are given with framing square layout and degree settings for cuts with skilsaws and with degree settings for compound miter or radial arm saws.

Framing roof valley rafters.

Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties. Become a faster more accurate and more efficient roof framer with the rafter book. The solution was to run one valley rafter on each side of the roof through to the main ridge. On the common rafters the plumb cut is marked with a framing square for a 12 in 12 pitch 45 and cut square i e no bevel.

Framing a roof valley do the math on a calculator so that you can concentrate on what s important. Getting the rafters right. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. The rafters carry the applied loads to the exterior walls.

And the room below gets a cathedral ceiling. This is called a blind valley and it carries the shorter valley and the lower ridge. A valley rafter is built similar to other rafters but it runs from a wall plate to the ridge along the valley of a roof. California trusframe llc components and latest modern technology are an efficient reliable solution for today s builder.

To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. The function of each component is. The rafter book works. The valley rafter is marked for a 12 in 17 pitch and then cut with a double bevel to fit into the ridge intersection.

Not shown are the hip and valley rafters needed to tie the roof together where the rafters are framed at an angle to each other. Connect a flat roof to a sloped or pitched roof with a ledger board. Remove siding from the house where the new roof will attach to expose rafters or other framing of the old roof. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

Two factors complicated the framing of this roof. Used by carpenters union apprenticeship programs from hawaii to new york. In a rafter roof all of these components are required to provide a stable roof. Systems are designed ahead of time and optimized to lower cost while adding value to the framing process.

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