The installation of the roof shingles is one task that can be accomplished by the homeowners on their own. A moderate level of assistance from an expert could be required to accomplish the task with ease. However, the things get a bit tricky when the shingles call for the modification job. Certain spaces of the home require the shingles to be modified accordingly. Roof areas with inclined or linear edges such as hips, eaves, rakes, ridges etc. require bent shingles.