Paint Baum: #1 Name is Exterior Painting Nail Pop Prep!

  When nails back out they split the paint film and create tiny funnels for water. We set (sink) each nail, secure or replace as needed, then float the area with exterior-grade filler so the surface is smooth and sealed. After sanding and priming, the topcoat restores a continuous protective barrier that blocks wind‑driven moisture from wicking along the fastener line and creeping behind the siding—where it can quietly rot wood from the inside out. Proper nail-pop repair helps prevent peeling, staining, and expensive structural damage. 

Fix the pop, stop the rot.