Largo sits in the middle of the Pinellas peninsula, which gives it a milder salt exposure than the beaches but far more than anywhere in Hillsborough. Its housing stock is heavily midcentury and manufactured-home communities, meaning lots of low-slope roofs and modest, efficient arrays.
Moderate peninsula salt
Enough salt reaches Largo to bind dust into a persistent film, even though it is not the direct spray the beaches get.
Low-slope accumulation
Ranch and manufactured-home roofs shed very little. Whatever lands mostly stays until it is washed off.
Ulmerton and East Bay traffic
Two of the busiest corridors in Pinellas run through Largo, contributing steady road film.
Low-slope shingle on midcentury ranch homes, metal on manufactured and mobile home communities, flat and low-slope commercial along Ulmerton and East Bay. Low pitch means less rain runoff and more soiling accumulation.
Largo arrays are typically 12 to 24 panels, sized to modest single-story homes.
Ridgecrest, 16 panels, low-slope shingle
Three years of accumulation with no runoff to help. A single pure-water clean recovered visibly clear glass; owner moved to a semi-annual schedule.
East Bay area, 14 panels, metal roof
Manufactured home community array cleaned entirely from the ground, with the lower row's mineral spotting from irrigation removed at the same time.
Largo sits outside Hillsborough County, so a $50–$100 travel fee applies depending on routing. Booking alongside a neighbour usually removes it.