If your new roof, which is still under a 10-year warranty, has started to leak, you should contact the roofing company that installed the roof as soon as possible. They should be the first point of contact for addressing any issues or concerns with the roof.
Typically, the roofing company will be responsible for repairing the roof if it is determined that the leak is due to a defect in materials, workmanship, or installation errors covered under the warranty. They should inspect the roof, identify the cause of the leak, and make the necessary repairs to rectify the problem.
Regarding the damage to the drywall inside your home caused by the roof leak, the responsibility for repairs may vary depending on the specific terms and conditions of the warranty and any applicable local laws. In some cases, the roofing company may be liable for the damage if it can be directly attributed to their faulty installation or workmanship. However, it's important to review the warranty agreement or contract you have with the roofing company to understand the extent of their liability.
It's advisable to document the damage by taking photographs and keeping records of any communication with the roofing company. This will help support your claim and facilitate the resolution process. Additionally, if necessary, you may want to consult with a legal professional or seek advice from your local consumer protection agency to understand your rights and options in this situation.