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• <br />319 Not Recommended (p.18) <br />320 It is recommended that waterproof or water repellent coatings or surface <br />321 consolidation treatments not be used on masonry surfaces unless <br />322 required to solve a specific problem that has been studied and <br />323 identified. Coatings are frequently unnecessary and expensive, and can <br />324 accelerate deterioration of the masonry. <br />325 Mortar joints, which do not need repointing, should not be repointed. <br />326 A. Roofs and Roofing (p.19) Roofs in the district encompass <br />327 all the various designs found in residential structures: <br />328 hipped, gabled, gambrel, flat, and combinations of these. <br />329 Roofs are covered with a variety of materials such as <br />330 asphalt, asbestos, wood and slate shingles as well as <br />331 clay tiles. Residences in most cases have wood facias <br />332 with gutters and downspouts. The facias of some vinyl or <br />333 aluminum sided houses are covered with the same material. <br />334 Required (p.19) <br />335 The existing shape of the roof shall be retained. <br />336 All architectural features, which give the roof its essential character, <br />337 shall be retained, including dormer windows, cupolas, cornices, <br />338 brackets, chimneys, cresting and weather vanes. <br />339 Recommended (p.19) <br />340 It is recommended that the original shape and materials of the roof be <br />341 restored. Particular effort should be made to retain materials such as <br />342 slate, tile, and other unique materials not commonly found in new <br />343 construction. <br />344 It is recommended that roof covering which is deteriorated beyond <br />345 repair be replaced with new material that matches as closely as possible <br />346 the original in composition, size, shape, color and texture. <br />347 Gutters and downspouts are often a necessary adjunct in order to <br />348 prevent deterioration of the structure; they should be maintained <br />349 whenever possible or replaced with a style comparable and suitable to <br />350 the architectural period. <br />`K3 <br />