A Leaking Coated Metal Roof: Identify the Old Coating First

What to check first

• Determine whether the surface is silicone or another coating.
• Inspect for peeling layers, corrosion, and failed fasteners.
• Do not put Turbo Poly Seal over silicone
• use an appropriate same-system repair or remove the old repair as directed.

Prepare the joint before sealing it

1. Check movement and support

   Loose fasteners, separating joints, and deteriorated metal need attention before a liquid repair. Sealant is not a replacement for missing support or a failed attachment.

2. Identify the bonding surface

   Determine whether you are bonding to bare metal, a factory finish, or an older coating. Remove loose rust and failing material as directed; leave a sound, clean, fully dry surface.

3. Follow one compatible repair system

   For suitable Turbo Poly Seal seam repairs, embed the specified fleece in the wet base coat and saturate it with the top coat. Screw-head details may use sealant without fleece. Follow the current detail rather than mixing instructions from different products.

Watch the field examples

These archive demonstrations show individual projects. Use the current guidance above and Bergstrom’s published instructions if an older video shows a different product or method. Torch work shown in installation videos is professional work.

From the project archive