A rafter might split when heavier roof tiles are installed or if the rafter has inconsistent grain or excessive knots.
Hip roof rafter repair.
The successful distribution of loads due to the peculiarity of the location of the main diagonal angular and hip rafters ensures high resistance of the entire system to deformation under the action of external application of forces.
Finally the hip roof may well serve as a mansard at certain angles of inclination of course.
Rafter and joist systems are made up of two pieces of wood that run directly beneath the roofing surface and give it its shape while joists bridge the gap between the two rafter ends and support the whole thing.
Over time roof rafters can wear crack or rot and replacements may be in order.
Fixing a rafter requires basic carpentry skills and the ability to work in.