Historic downtown roofsWhat should Litchfield building owners know before replacing a downtown roof?
Litchfield's downtown along North Sibley Avenue is a Commercial Historic District on the National Register, full of two-story Italianate brick buildings from the 1880s and 1890s. The city passed a historic ordinance and set up a Heritage Preservation Commission in 2008. Before changing anything visible from the street, like parapets, cornices or roof edges, ask City Hall whether a review applies.
A lot of Litchfield's downtown is built from the same cream-colored brick. It came from Henry Ames's brickyard northeast of town, and it went into the 1885 Meeker County Courthouse, the 1885 GAR Hall, the 1889 Masonic Temple building and the 1900 Opera House. Half the buildings in the historic district were standing by 1900.
Buildings like these usually have flat or low-slope roofs hidden behind parapet walls. Water gets in where the roof membrane turns up the parapet, at the coping on top of the wall and around scuppers and downspouts. Soft old brick and mortar hold moisture, so a small flashing leak can do damage inside the wall long before a ceiling stain shows up.
When we look at an older masonry building, we photograph the parapets, coping, flashing and drainage before we suggest anything, and we keep repairs to the roof side of the wall where possible so the street face stays as it is. For the historic question itself, the Heritage Preservation Commission and City Hall at 126 North Marshall Avenue have the answer.