Frame Roof Valley

Usually has a metal valley exposed.

Frame roof valley.

The run or half the building span is the base of the triangle. Framing a roof is the last step in framing new construction. And the line length measurement from the roof peak to the building wall is the hypotenuse. Valley roof a valley is a roof design that creates a v shape.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. 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. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side.

Blind valleys simplify framing. 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. Parts of a roof a ridge board is a horizontal member of the roof frame. The point at which all the rafters are.

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. While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below. Getting the rafters right. The roof rafters provide integral structural support to the roof.

By rick arnold issue 161. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. Often seen on complex roof shapes.