The ridgelines above Evergreen wake before the rest of Colorado. Overnight frost melts by midmorning, slips into shingles, and hardens again by dusk. Each freeze–thaw cycle stretches the surface a little thinner, and the structure a little weaker. In mountain towns like Evergreen, roof repairs are a race against time. At elevations over 7,000 feet, temperature swings of 30 to 40 degrees in a single day are common, forcing roofs through constant cycles of expansion and contraction. Over time, those shifts strain shingles, flashing, and underlayment more than any single storm ever could.