How To Frame A Roof Pitch
Rick arnold frequent contributor to fine homebuilding and the journal of light construction presenter at jlc live the katz roadshow the remodeling show.
How to frame a roof pitch. Or if you want to raise the roof a bit more install fascia around the roof perimeter attached to the new soffit and nail the new roof deck to crown molding above the fascia. To provide a framework for the new trusses nail 2 by 6 inch strips of wood around the perimeter of the roof. Measure out each plumb cut. Position the square at the end of the rafter board with the tongue on your left and facing away from you.
The resulting angle forms the pitch of the roof. Input the pitch of the roof that you calculated above we ll use 7 12 for reference throughout on the framing square. This will give the framing square the angle you need to make the ridge cut. Some carpenters like to make this.
Unit run of the hip. This will the first point of the rafter measurement line. So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge.
Measure down y height from the long point of the rafter cut and make a mark. This gives the angle of the hip rafter. Roof framing rafter layout. Add the length of the overhang beyond this mark and.
To create the pitch of the roof a single piece of wood called a ridge beam is placed along the length of the home. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it. Line up the square with the pitch end of the chord and mark the line with a pencil. Draw a diagonal line between 9 feet the run of the main roof on the tongue of the square and 7 feet 6 inches the secondary roof run on the blade.
Rafters are placed to the top plate of the second floor and joined to the ridge beam.