When Is Windscreen Damage Too Serious To Repair?

Did you know that a typical car windscreen is made with a very special type of glass? It's designed to perform in most circumstances and put up with a certain amount of stress while remaining in good shape, but unfortunately, it can also be damaged by an errant stone. But what can you do in this situation? Is it possible to repair different cracks or chips, or will you need to get a new windscreen?