Valley Roof Frame

Hip valley roof framing example 1 this hip valley roof framing article will cover the different steps in calculating the roof framing lengths and angles for.

Valley roof frame.

It s also known as a cross gable roof since the home has a cross footprint. The intersecting roof consists of a gable and valley or hip and valley. The run or half the building span is the base of the triangle. Generally wherever 2 sloped planes connect other than at a peak point a valley is formed.

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. But it doesn t have to be. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.

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 valley is formed where the two different sections of the roof meet generally at a 90 angle. 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. Equal pitched roof 6 12.

A valley rafterforms a depression in the roof instead of a hip. In combination of roof styles a hip will connect to another part of the roof as part of the frame. This type of roof is more complicated than the figure 2 1 most common types of pitched roofs. And the line length measurement from the roof peak to the building wall is the hypotenuse.

Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Valleys the inverse of a ridge or lines that appear to go inward on a roof. Framing a complex roof is one of the trickiest parts of home building. 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.

Roof ceiling construction requirements are listed in california residential code chapter 8. The gable and valley roof is a very popular roof design. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. 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.