Rafter Layout For Hip Roof

See rafter run to outer wall calculator below.

Rafter layout for hip roof.

Hip roof framing plan truss layout jack rafters layout left side. Roof battens lath hip end side roof battens lath main roof side wall plate or inferior purlin cut corner connection roof. Allow for ridge thickness when determining rafter run to outer wall. S5 s8 s9 s12 s21 s24 s29 32 jack rafters layout right side.

The roof rafters provide integral structural support to the roof. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same.

As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. A hip roof design refers to a roof where the roof sides slope downwards from a middle peak with the rafter ends meeting the exterior walls of the house. Each of the four sides of the roof slope downward there are no upright or vertical parts no gables etc on a hip roof. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through.

If we consider the rectangular shape of most buildings then hip roofs will be constructed with two triangular sides and two trapezoidal sides. Half building width minus 1 2 ridge thickness. 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. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.

Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. The drawings are representative of all of the hip end side jack rafters and do not include the overall lengths which are available on the layout tab. Whereas in the case of square buildings hip roofs are more commonly.