If you want to convert your old hip roof to a gable roof then you should be prepared for some major changes in your roof.
Hip roof into gable roof.
Gable roofs also called pitch roofs slant on two sides from a peak.
Half hip roof this is an add on to a gable roof where the end of the gable includes a small hip roof section that slopes toward the ridge.
The center portion of a hip roof is framed just like a gable roof with common rafters from a peak to two outside walls.
The hip roof will not have enough support to convert to a gable roof so you must add additional supporting structures to make the conversion possible.
A dutch gable is a hybrid of the gable and hip roof.
Gable roofs are more common.
A gable roof has two faces whereas a hip roof will have four.
Hip roofs slant down on all four sides to form a level edge around the house.
Due to the fact that a hip roof requires a more complicated design and build a hipped roof will cost more than a gabled roof.
A gable roof is placed at the top of a hip roof for more space and enhanced aesthetic appeal.
The hip ends are framed with diagonal rafters from the peak to the wall.