What is my house inside roof material?

To determine your house's interior roof material, you can look for visible signs like the texture and color of the ceiling. Common materials include drywall, plaster, or wood paneling. If possible, check the attic for the type of roofing underlayment or insulation used, which can provide additional clues. If you're still unsure, consulting your home’s blueprints or a contractor might help clarify your roof material.