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A
<br />C
<br />Masonry, including brick and stucco structures, shall be maintained, and properly cleaned only when necessary to halt deterioration or to k
<br />remove stains and shall be done in a method acceptable for the preservation of the surface: i.e. low-pressure water and soft natural bristle
<br />brushes. Brick or masonry mortar joints should be repointed only when there is evidence of moisture problems, or when sufficient mortar is •
<br />missing to allow water to stand in the mortar joint. Existing mortar shall be duplicated in composition, color, texture, joint size, method of
<br />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 mixture and
<br />underlayment used in the original work. Some repair methods are not compatible with the original techniques and may cause early ;
<br />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 structure from
<br />moisture and insects,
<br />Recommended
<br />Whenever possible, the original building materials should be restored. When maintaining or repairing original siding is not feasible,
<br />aluminum, vinyl or composite siding may be used. When used over wood surfaces, this siding should be the same size and style as the
<br />original wood. Every effort should be made to retain the original trim around windows, doors, cornices gables, eaves and other architectural
<br />features.
<br />Prohibited
<br />Wood siding shall not be resurfaced with new materials that is inappropriate or was unavailable when the building was constructed, such as
<br />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 sandstone. This
<br />method of cleaning erodes the surface material and accelerates deterioration. s
<br />Repointing shall not be done with a mortar of high Portland cement content which can often create a bond that is stronger than the building
<br />material. Usage of Portland cement can cause deterioration as a result of the differing coefficient of expansion and porosity of the historic i
<br />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 masonry surfaces
<br />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 required to solve a
<br />specific problem that has been studied and identified. Coatings are frequently unnecessary and expensive, and can accelerate deterioration of S
<br />the masonry. Mortar joints, which do not need repointing, should not be repointed. Wood 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 windows
<br />with wood trim and sills. Brick structures have stone sills and brick lintels. In some cases where aluminum siding has been applied,,
<br />the window and door trim has been covered. About half of the structures in the district have aluminum storm windows; the other
<br />half have wood storm windows. •
<br />Required
<br />Original windows and doors shall be retained including sashes, lintels, sills, shutters, decorative glass, pediments, hoods and
<br />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 frames. If
<br />new sashes or doors are installed, the existing or original materials, design and hardware should be used. When metal storm doors
<br />are used, they should be painted, anodized or coated to match the existing. When awnings are used, they should be of canvas
<br />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 addition to a
<br />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 cleaning and
<br />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 include re-
<br />roofing, glazing, or landscaping lawns and may involve a change that can potentially enhance or detract from the character of the landmark.
<br />A treatment change of any surface whether on the landmark or in its environment may require a Certificate of Appropriateness if it
<br />significantly alters the appearance of the landmark. Although these kinds of changes may not require a Building Permit, a Certificate of
<br />Appropriateness may be necessary. The commission should review the proposed treatment for character and style consistency with the
<br />original surfaces.
<br />C. Renovation and Additions
<br />Renovation is the modification of a structure, which does not alter the general massing while an addition, is a change in mass. A
<br />modification, which involves the removal of a part of the landmark, should be considered under demolition (see demolition).
<br />Additions to landmarks should not detract from the original form and unity of the landmark and should not cover singular examples of
<br />architectural detail. Additions to landmarks should be added in a manner that does not disrupt the visible unity of overall appearance of the
<br />site. The proportions, materials and ratios of the existing structures should be carried through in the additions. Care should be taken not to
<br />change or alter the following: •
<br />1. Structure—Necessary structural improvements, where safety demands should be accomplished in such a way as to cause
<br />minimal visual change to the original style and construction.
<br />2. Material—Additions and improvements involving any new material in the landmark should be of the same material as
<br />the 'original. It should be the same size and texture. An alternative material may be allowed if it duplicates the original.
<br />a. wood—all wood trim should conform with existing trim in shape and size.
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