Gable And Valley Roof Framing

A valley rafterforms a depression in the roof instead of a hip.

Gable and valley roof framing.

Whether you re tying in new gable dormers or adding a chimney cricket during roof framing giving the valley jacks a place to land is an easy task with these step by step instructions. 4 12 through 9 12 are the most common pitches. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors. The intersecting roof consists of a gable and valley or hip and valley.

A hip rafter is called for only when framing a hip roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. Shed or lean to roof gambrel roof mansard roof dutch hip roof hip roof hip valley roof low slope flat roof gable roof gable roof dormer gable valley roof gable roof with shed roof addition roof styles which roof. In the u s it is defined by the rise in inches to a 12 run. The valley is formed where the two different sections of the roof meet generally at a 90 angle.

A roof for insulation solar panels and bedrooms intersecting roofs and gable ends form an interesting roofline and allow for usable space on the second level. If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot. This roof valley is a perfect example. Vertical rise over horizontal run.

Where two gable roof lines meet the intersection forms inside corners called valleys. And the line length measurement from the roof peak to the building wall is the hypotenuse. The run or half the building span is the base of the triangle. But it doesn t have to be.

Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. Like the hip rafter it extends diago nally from the top plate to the ridge. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. This type of roof is more complicated than the figure 2 1 most common types of pitched roofs. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. Framing a complex roof is one of the trickiest parts of home building.

Chapter 17 reading guide 465. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. The rise or height of the roof at its peak is the altitude of the triangle.