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Steve Szaday
<br />Preservation Inspector
<br />STANDARDS AND GUIDELINES: CHAPIN PARK
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<br />IL EXISTING STRUCTURES
<br />A. BUILDING MATERIALS
<br />Original exterior building materials in the district include brick, stucco, clapboard, wood shingles, and brick or stone masonry. In
<br />some instances, vinyl, composite and aluminum siding have been applied over the original material.
<br />Required
<br />Original exterior building materials shall be retained when possible. Deterioration of wood materials shall be prevented
<br />through repair, cleaning and painting. The existing architectural detail around windows, porches, doors and eaves shall
<br />be retained or replaced by replicas of the same design when deteriorated beyond repair.
<br />Masonry, including brick and stucco structures, shall be maintained, and properly cleaned only when necessary to halt
<br />deterioration or to remove stains and shall be done in a method acceptable for the preservation of the surface: i.e. low-pressure
<br />water and soft natural bristle brushes. Brick or masonry mortar joints should be repointed only when there is evidence of
<br />moisture problems, or when sufficient mortar is missing to allow water to stand in the mortar joint. Existing mortar shall be
<br />duplicated in composition, color, texture, joint size, method of application and joint profile.
<br />When repairing stucco, stucco mixture shall be used. A professional shall make a study of the old stucco, to determine the exact
<br />mixture and underlayment used in the original work. Some repair methods are not compatible with the original techniques and
<br />may cause early disintegration of the repair work and the original work.
<br />Ample ventilation must be afforded the structure when siding is installed, in order to prevent increased deterioration of the
<br />structure from moisture and insects.
<br />Recommended
<br />Whenever possible, the original building materials should be restored. When maintaining or repairing original siding is
<br />not feasible, aluminum, vinyl or composite siding may be used. When used over wood surfaces, this siding should be the
<br />same size and style as the original wood. Every effort should be made to retain the original trim around windows, doors,
<br />cornices gables, eaves and other architectural features.
<br />Property owners should contact the Historic Preservation Commission of South Bend and St. Joseph County prior to initiating
<br />any restoration or rehabilitation effort. [ Address and contact information is listed in the front of the Guidebook.] The
<br />Commission is an invaluable source of information about all facets of rehabilitation and restoration — materials, methods,
<br />contractors and the like.
<br />Prohibited
<br />Wood siding shall not be resurfaced with new materials that is inappropriate or was unavailable when the building was
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<br />constructed, such as artificial stone, brick veneer, asbestos or asphalt shingles.
<br />Sandblasting or the use of harsh detergents shall not be used on masonry including brick, stucco, limestone, flagstone and
<br />sandstone. This method of cleaning erodes the surface material and accelerates deterioration.
<br />Repointing shall not be done with a mortar of high Portland cement content which can often create a bond that is stronger than
<br />the building material. Usage of Portland cement can cause deterioration as a result of the differing coefficient of expansion and
<br />porosity of the historic masonry unit and the mortar. This most often results in serious damage to adjacent brick.
<br />Unpainted masonry surfaces shall not be painted unless they had been painted originally. Paint shall not be removed from
<br />masonry surfaces by any means that damage the surface.
<br />Not Recommended
<br />Waterproof or water repellant coatings or surface consolidation treatments should not be used on masonry surfaces unless
<br />required to solve a specific problem that has been studied and identified. Coatings are frequently unnecessary and expensive, and
<br />can accelerate deterioration of the masonry. Mortar joints, which do not need repointing, should not be repointed. Wood siding
<br />should not be power -washed.
<br />B. ROOFS AND ROOFING
<br />Roof shapes in the district encompass all the various designs found in residential structures: hipped, gabled, gambrel, flat
<br />and combinations of these. Roofs are covered with a variety of materials such as asphalt, asbestos, wood and slate shingles
<br />as well as clay tiles. Residences in most cases have wood fascias with gutters and downspouts. The fascias of some vinyl -
<br />and aluminum -sided houses are covered with the same materials.
<br />Required
<br />The existing shape and type of materials of the roof shall be retained. All architectural features, which give the roof its essential
<br />character, shall be retained, including dormer windows, cupolas, cornices, brackets, chimneys, cresting and weather vanes.
<br />Recommended
<br />The original shape and materials of the roof should be restored. Particular effort should be made to retain materials such
<br />as slate, tile and other unique materials not commonly found in new construction. Roof covering which is deteriorated
<br />beyond repair should be replaced with new material that matches as closely as possible the original in composition, size,
<br />shape, color and texture. Gutters and downspouts are often a necessary adjunct in order to prevent deterioration of the
<br />structure; they should be maintained whenever possible or replaced with a style comparable and suitable to the
<br />architectural period.
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<br />Prohibited
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