The need for a new roof can strike fear in the hearts of many homeowners. They are afraid not only of the cost involved but also of their lack of knowledge regarding the process of roofing installation. Here's a little primer on how new roofing is installed and the three options you have: Do-it-yourself Roofing can be a DIY project with a few caveats. First and foremost, many communities require a permit for re-roofing your home.