This homeowner noticed water coming through near his master bedroom and gave us a call. During inspection, PM Josh Rumps went into the attic to trace the source and found an improperly installed attic vent — a common issue on builder-grade roof systems. You might also notice all of the exposed and rusted nails. This is a common mistake that some roofers make. A nail head sitting on top of a shingle (rather than tucked under the layer above it) creates a tiny puncture in the roof's surface that's not shielded by overlapping material. Water can pool around the nail head and eventually work its way down the shaft into the deck. We ended up making a temporary repair on the roof to stop the immediate leak, and once the full scope of work was assessed, it was clear the vent had let moisture in long enough to rot the surrounding sheathing. The fix: replacing the compromised sheathing and upgrading the entire system to a Class 4 impact-resistant roof from Malarkey, including upgraded metal roof components in place of the original plastic vents. (Class 4 systems may qualify for an insurance discount — homeowners should confirm eligibility directly with their carrier.)