5 Warning Signs Your Roof Needs Waterproofing

Your roof is your first line of defence, but harsh weather, UV and age wear it down fast. Knowing when to act can prevent costly repairs and damage to assets.

1️⃣ Cracks or Blisters on the Surface
Cracks, bubbles, or blisters indicate that your coating has failed. Water finds its way through, and it spreads fast.

2️⃣ Interior Damp Marks
See stains on ceilings or walls? That’s moisture getting through — your waterproofing isn’t doing its job.

3️⃣ Rust or Corrosion on Metal Roofs
Corrosion on IBR or chromadek sheets is a clear sign of failed protection. Once rust starts, it spreads under the coating.

4️⃣ Mould & Musty Smells
Persistent damp = failed waterproofing. Mould brings extra health risks and can damage structures over time.

5️⃣ Ponding Water
Water pooling on flat roofs causes leaks, weak spots and structural stress.

What to Do:
A professional inspection can confirm damage, recommend the right system (like HydroFlex, RoofRenew or ThermaSeal) and help you plan cost-effective repairs before bigger problems start.

👉 Need your roof checked? Request a site inspection with Sealtek today.