Spray foam insulation in Milford, OH

Milford began in 1806 as three blocks of Main, Water, and High streets near where the Little Miami and its East Fork meet, and the houses in that historic core are the most likely to have open, uninsulated wall bays and a thin, settled layer in the attic. The city nearly doubled in the 1950s, from 2,450 residents to 4,130, so the next tier is postwar housing with vented attics and bare rim joists, and later construction carries more insulation but still tends to leak at attic hatches, top plates, and recessed lights. Milford spans Clermont and Hamilton counties, and the Climate Zone 4A targets are the same on both sides of the line.