Can I install a new roof over an old one?

Yes, you can install a new roof over an old one in some cases, but it depends on local building codes, the roof’s condition, and the existing material. Most areas allow up to two layers of shingles, but if the current roof is damaged or uneven, a full tear-off is better for long-term durability. Adding another layer can save money upfront but may lead to issues like trapped moisture and extra weight. Consult a professional roofer like WaterTight Roofing Indy to assess if this is a viable option for your home.