Your roof is arguably the most important part of your home that protects you from the harshest elements. Sun, wind, and rain are constantly beating down on it, and this can have dire effects on its condition. Most especially when Mother Nature decides to wreak havoc, there is very little a homeowner and his roof can do against such devastating power.
When a roof suffers severe storm damage, that damage must be addressed as quickly as possible to avoid further and costlier repairs to the roof and to the structure itself. Even the tiniest holes or cracks can quickly lead to bigger problems later on, so you need to act on it as soon as you can.