Water Damage on TPO Roof (What You Should Do Immediately)

Active water infiltration from a TPO roof requires immediate action to minimize interior damage. Here's what to do right now and what comes next.

Immediate Steps

First, protect interior contents — move equipment, cover inventory, and place buckets or containment to limit interior water damage. Document the damage with photos for insurance purposes. Then apply compatible TPO lap sealant or a temporary patch to the apparent leak area on the roof to stop active infiltration. This buys time for a proper assessment.

Get a Professional Inspection Quickly

Once the immediate emergency is contained, schedule a professional roof inspection as soon as possible. The inspection should include: locating all breach points (not just the apparent ones), core sampling to assess wet insulation extent, and documentation of damage for insurance if applicable.

Why You Shouldn't Wait

Every day water sits in insulation, the damage expands. Wet insulation compresses, creating low spots that cause more ponding. Mold can begin developing within 24–48 hours in saturated insulation. What starts as a restorable leak situation can become a full replacement scenario if left unaddressed.

Long-Term Solutions

If moisture is below 25% after inspection: silicone coating restoration ($2.50–$4.50/sq ft) is the most cost-effective solution. If above 25%: full replacement may be necessary. Either way, acting quickly limits how much wet insulation must be replaced and keeps restoration viable.