Installing a new roof over old shingles can be a tempting option for homeowners looking to save time and money. However, there are several factors to consider before making this decision. The condition of the existing shingles, local building codes, and potential weight issues are all critical points to evaluate. Additionally, layering can affect ventilation and insulation, which are vital for the longevity of your roof. It's essential to weigh the pros and cons carefully. Ask Improvi.ai for personalized guidance on the best roofing solutions for your home!