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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. is
<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 not
<br />feasible, aluminum, vinyl or composite siding may be used. When used over wood surfaces, this siding should be the same size
<br />and style as the original wood. Every effort should be made to retain the original trim around windows, doors, cornices gables,
<br />eaves and other architectural features.
<br />Prohibited
<br />Wood siding shall not be resurfaced with new materials that is inappropriate or was unavailable when the building was
<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,
<br />and can accelerate deterioration of the masonry. Mortar joints, which do not need repointing, should not be repointed. Wood
<br />siding should not be power -washed.
<br />C. WINDOWS AND DOORS
<br />Window and door frames are in most cases wood and vary depending upon the style of the home. Many are double -hung
<br />windows with wood trim and sills. Brick structures have stone sills and brick lintels. In some cases where aluminum
<br />siding has been applied, the window and door trim has been covered. About half of the structures in the district have
<br />aluminum storm windows; the other half have wood storm windows.
<br />Required
<br />Original windows and doors shall be retained including sashes, lintels, sills, shutters, decorative glass, pediments, hoods
<br />and hardware. When deteriorated beyond repair, they shall be replaced with units and trim resembling the original.
<br />Recommended
<br />Wood storm windows and doors painted or finished to match the original should be used but should not damage existing
<br />frames. If new sashes or doors are installed, the existing or original materials, design and hardware should be used.
<br />When metal storm doors are used, they should be painted, anodized or coated to match the existing. When awnings are
<br />used, they should be of canvas material.
<br />STANDARDS AND GUIDELINES. GROUP B LOCAL LANDMARKS:
<br />The Commission has the authority to determine the architectural merits and the extent of any proposed treatment, renovation, or
<br />addition to a historic landmark. The commission will require drawings, plans, specifications, and/or samples where appropriate.
<br />A. Maintenance
<br />The maintenance of any historical structure or site shall in no way involve any direct physical change except for the general
<br />cleaning and upkeep of the landmark. The Commission shall encourage the proper maintenance of all structure or sites.
<br />B. Treatment
<br />Treatment shall be defined as any change of surface materials that will not alter the style or original form. Such improvements
<br />include re -roofing, glazing, or landscaping lawns and may involve a change that can potentially enhance or detract from the
<br />character of the landmark. A treatment change of any surface whether on the landmark or in its environment may require a
<br />Certificate of Appropriateness if it significantly alters the appearance of the landmark. Although these kinds of changes may not •
<br />require a Building Permit, a Certificate of Appropriateness may be necessary. The commission should review the
<br />proposed treatment for character and style consistency with the original surfaces.
<br />C. Renovation and Additions
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