Valley Roof Frame

The rise or height of the roof at its peak is the altitude of the triangle.

Valley roof frame.

Framing a complex roof is one of the trickiest parts of home building. It s also known as a cross gable roof since the home has a cross footprint. Roof ceiling construction requirements are listed in california residential code chapter 8. Equal pitched roof 6 12.

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. 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. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. This roof valley is a perfect example.

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. A valley rafterforms a depression in the roof instead of a hip. Like the hip rafter it extends diago nally from the top plate to the ridge. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.

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. These requirements cover the design and construction of roof ceiling systems including roof framing roof drainage roof sheathing ceiling finishes roof ventilation and attic access. Valleys the inverse of a ridge or lines that appear to go inward on a roof. The gable and valley roof is a very popular roof design.

This type of roof is more complicated than the figure 2 1 most common types of pitched roofs. The valley is formed where the two different sections of the roof meet generally at a 90 angle. In combination of roof styles a hip will connect to another part of the roof as part of the frame. The intersecting roof consists of a gable and valley or hip and valley.

Generally wherever 2 sloped planes connect other than at a peak point a valley is formed. But it doesn t have to be. The run or half the building span is the base of the triangle. And the line length measurement from the roof peak to the building wall is the hypotenuse.