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Bay City HDC OKs roof replacement and 40‑watt solar attic vent at Carroll Road property
Summary
The commission approved a certificate of appropriateness for roof replacement at a Carroll Road house, allowing asphalt shingles to replace existing cedar shake on parts of the roof and permitting a solar‑powered attic vent to be installed at the ridge.
The Bay City Historic District Commission approved a certificate of appropriateness for roof work and the addition of a solar‑powered attic vent at a house on Carroll Road, citing the applicant's written materials and photos.
Commissioners reviewed the application in case HDC 25‑23, which proposed replacing roof sections with Owens Corning Duration shingles and installing a soffit along the underside of an overhang that will include roof vents. The written packet described a 40‑watt solar‑powered vent to be located at the ridge on the backside of the house to improve attic airflow and regulate temperature.
Commissioners discussed existing materials on the house: portions of the roof have cedar shake while lower‑level sections already have asphalt shingles. Staff noted the application says the new roof on the main house will be matched to the existing garage roof; commissioners understood that to mean a gray color but said color is not regulated by the commission.
A staff member summarized the vent description: "This 40 watt solar powered vent would be at the ridge on the backside of the house," and said the device is intended to improve attic ventilation and help prevent premature roof deterioration. Commissioners asked whether the solar panel would be visible and where it would be mounted; staff said the panel must be exterior and capable of catching sunlight and that the vent is mounted on the roof and operates like a shingle that lifts when active.
The commission moved and supported a motion to approve the certificate of appropriateness, finding the work meets the U.S. Secretary of the Interior standards for rehabilitation cited in the application and section 64‑11(c) of the city's historic preservation regulations. The record shows commissioners present voted in favor and the motion passed. Staff were asked to confirm final shingle selection and to contact the applicant (referred to on the record as Mr. Shannon) with the commission's action and any follow‑up requirements.
Commissioners reiterated that color choices for shingles are not typically controlled by the commission and that the application indicated the new shingles will match the garage roof.
