Steep pitches, many valleys and hail exposure
Steep roofs shed rain well but are harder and slower to work on, and safety equipment adds setup time. Multiple valleys, hips and intersecting gables create places where water collects and flashing has to be perfect. Builders sometimes use basic details that hold up for a while and then fail, so valley linings and step flashing are worth checking on roofs that are reaching middle age.
Lee's Summit sits in a region with frequent spring storms, and hail can bruise shingles, strip granules and dent vents and gutters. On large roofs the damage may be uneven, with the south and west slopes taking more of the impact. Looking closely at each slope tells you whether repair or replacement fits.
