A nail pop occurs when roofing nails become dislodged or push upward through shingles, creating a raised or exposed point. This can compromise the waterproof barrier and lead to leaks if not addressed. Nail pops are often caused by temperature fluctuations, improper installation, or wood movement in the roof deck. In rainy climates, exposed nail heads can allow water infiltration and damage surrounding materials. Prompt repair helps maintain roof integrity.
