Can I roof over wet insulation?

No, you should not roof over wet insulation. Roofing over wet insulation may cause mold and rot, leading to costly damage and repairs in the future. Additionally, wet insulation does not provide adequate protection from the elements. Roof repairs that involve replacing wet insulation will be more effective and longer lasting than trying to roof over it. To ensure that your roof is properly protected, any existing wet insulation must be completely removed before installing new materials.