Every job leaves a paper trail.

An eight foot run terminating through a jack on a first story tile roof. The cap was found deformed open with its securing rivet gone, loose enough to lift by hand, and the duct throat behind it was packed solid with compacted lint. A dryer exhausting into that pushes heat and moisture back into the appliance and the cabinet, which is the condition most commonly associated with dryer fires.

Tile was assessed and photographed on a pre-walk before any weight went on the roof, and the ladder was staged on a stand-off so it bears on the fascia rather than the tile or the gutter. The run was brushed through from the roof with a drill driven brush while the dryer ran, so the loosened material carried out through the jack instead of into the house. The throat was cleared to bare metal. We came back two days later to seat the original cap and set a new rivet. No components were replaced and no tile was cracked.

The system was carrying a heavy soil band along the lower edge of every module, where runoff had been drying in place and leaving a mineral and dirt ridge at the frame. That band is the expensive one, because it shades full cell rows rather than scattered cells. Bird droppings and organic staining had collected at the upper edges of the main array.

Every roof plane was photographed before a tool touched glass. Modules were washed with a soft bristle method rated for photovoltaic glass and anti reflective coatings, no abrasives and no pressure washing. Frame edges were cleared so water sheets off rather than damming, then each plane was inspected for cracked glass, delamination, hot spot discoloration, loose clamps, and rodent intrusion under the array. Nothing was found that needed flagging. Recommended return is February 2027.

A four foot run with no elbows should move air freely. This one measured 470.3 FPM at the exterior termination with a discharge temperature of 127.9 F, which is what a heavily restricted run looks like. On a run that short, interval is the only explanation, and the volume of lint recovered at the outlet confirmed it.

The run was brushed end to end from the interior connection through to the termination, the lint expelled at the outlet was collected and removed from the site, and the transition duct was cleaned and reinstalled rather than replaced, because it was sound. The verification reading was taken at the same point with the dryer on the same cycle, so the two numbers are directly comparable.

Water damaged particle board under a utility sink, soft enough that the cabinet floor had stopped being a floor. The sink stayed in place and the new decking went in around it in sections, which is slower to plan and far less invasive than pulling plumbing.

Cutting out the failed panel uncovered two rodent nesting sites and a dead rat beneath it. The cavity was vacuumed out and cleared, the entry points were sealed, a cleat was installed for bearing, and a plywood patch was set flush and the baseboard reattached. Sanitizing was not performed, and rather than leave that unsaid, it was written into the report as a pest control item for the homeowner to schedule.