Its important to note that the automobile windshield chip repair exterior trim and moldings that we can see on the outside of the glass are for looks only. The actual water seal comes from the "urethane" adhesive which is used to create the bond. Its in this urethane that the water leak is originating.
Park your vehicle in a garage or under a shelter. If possible, park your vehicle in an area where it will be insulated from the harsh environment. This will not only protect it from ice, but from falling limbs or other hazards this time of year.
Some would ask, "Repair or replace?" Considering the pricey cost of windshield replacement, one would rather choose a rock chip repair kit. This specific line of kit is widely available in shops online and local and if you want to try the benefits of having them, shop around and get one for yourself and for your auto's need.
Why do you think there is windshield repair? You got it, cost. Some insurance companies want you to repair rather than replace because of cost. They save a fortune if you repair your windshield. Also, you need to check with your state as to what is legal as far as windshield repair all states have different laws regarding this issue.
Still no big deal? In some states it's illegal to drive with a crack in the windshield that is in the driver's line of sight. In other states it's illegal to drive with a cracked windshield at all. I'd call that a big deal.
But the best way to fix a leak is completely removing the glass and shooting a new seal. This is the only way to truly see what is happening. If the glass is removed a technician can 100% fix the underlying issue. This option may require the purchase of a new molding. Also your auto glass company will most likely require you to purchase a new glass if the old glass breaks upon removal.