How To Join An Uneven Roof

It is advisable to prepare a framing plan as shown in fig.

How to join an uneven roof.

In a hip roof with equal pitches the unit run of a hip or valley rafter is 17 inches for every 12 inches of run in the main roof. 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. Unit run of the hip. Remove the shingles and underlayment on the edges of both pitches approximately 6 inches from the edges using a shingle.

It remains for the student to make the applications to uneven pitches. Identify the roof areas that you will join. We measured from the ridge to the sleepers to get the lengths of the jacks and then cut them and fastened them into place. This gives the angle of the hip rafter.

Remove siding from the house where the new roof will attach to expose rafters or other framing of the old roof. All of the principles necessary for framing such a roof have been developed. Not infrequently a roof must be framed in which several pitches are involved. Connect a flat roof to a sloped or pitched roof with a ledger board.

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