Irregular Hip Roof Construction

Have you ever struggled with how to build a roof or framing a polygo.

Irregular hip roof construction.

Easy rafters does not calculate a complete four sided hip roof but rather calculates the common hip and jack rafters for one end of a hip roof. Select the following information by using the drop downs to enter values in feet and inches. It will display the framing square usage for the slope angle of the hip rafter 27 50055 6 12. Major side roof span building width ridge thickness 2.

Minor side roof pitch minor. Framing angle hip roof drawings. Major side roof pitch major. A regular hip has equal slopes on all sides while an irregular hip has different slopes on the main roof and hip end roof.

Next click on the hip angles button and then click on the hip valley rafter slope angle text. We ll use the 12 as the rotation point on the framing square and move the other end of the framing square to the edge of the hip rafter material using the 6 rotation dimension. Hip roof roof deck backyard gazebo pergola porch extension framing construction roof shapes roof lantern carpentry projects. Saved by norcal a s.

The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. View the irregular hip roof valley rafter framing blog for how to layout the hip rafter backing depth mark and the hip rafter side cut mark for hip rafter side cut angles. They are off center to illustrate this using sketchup and your models dimensions draw a right triangle with one leg at 25 9 3 8 and the other leg length at 17 2 5 8 now scale the triangle down so the hypotenuse is reduced to 1 1. When framing irregular hip valley roofs the h v rafter members are not equally split by the sheathing lines.

View the hip rafter roof plane alignment blog for more examples of the hip rafter plumb mark line shift on equal pitched roofs. A hip and valley roof may be part of an irregular structure.