The air conditioner runs from sunrise past sunset, the electric bill creeps higher every cycle, and the house never quite feels as cool as the thermostat claims it should. Most people respond by servicing the AC or adding attic insulation, and both are worthwhile steps. But the roof itself, the single largest surface exposed to direct sun for hours every day, rarely gets a second look until something starts leaking. That's the part most people miss. On a typical triple-digit