A cheap garage door is important for so many reasons. First of all, it protects your garage, and anything in it, from the elements. This allows you to park your valuable vehicles in your garage without having to worry that they will be affected by the weather. Garage doors also help to keep your garage insulated. Ask someone who has a bad garage door how they feel about it and they will quickly tell you all about how they either freeze, or get really hot, in their garage. One of the most important parts of a garage door that helps to keep it insulated and perfect is the weather striping. But weather striping can break down and deteriorate over time. If yours does, it is actually very easy to fix it.