(A) Roofing is an important character- defining feature of a historic building. Any change in the patterns, forms, color and texture of a roof can dramatically alter the look and feel of a historic building. Unfortunately, roofing systems, by design wear, out and require replacement. Failure to remedy leaks can cause deterioration of other building materials and even cause the loss of a building. For this reason, the importance of a weather-tight roof shall not be underestimated. A weather-tight roof, however, does not have to compromise historic integrity.
(B) Because most of the roofs in downtown Peru are flat roofs, and cannot be seen from the ground, modern materials, such as a rubber roofing system, may be permissible. However, if roofing can be seen from the ground, such as a mansard roof, then great care shall be taken to protect the size, scale, form, pattern, texture and colors of the historic materials.
(C) Design guidelines.
(1) Keep the original roof pitch, form and shape.
(2) Retain features and details that give a roof its historic character such as chimneys, cupolas/towers, and dormer windows.
(3) Before undertaking a wholesale replacement of a slate or tile roof, fix or replace flashings or valleys.
(4) If a historic roof system must be replaced, retain character by matching the size, scale, form, patterns, texture and color of the historic materials.
(5) Temporary stabilization materials shall be applied without damaging historic materials.
(Ord. 14, 2011, passed 10-3-11)