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Existing exterior building materials shall be retained. Deterioration of wood materials shall be prevented through repair., cleaning, and <br />painting. The existing architectural detail around windows, porches, doors, and eaves should be retained or replaced by replicas of the same <br />design and materials when deteriorated beyond repair. <br />Masonry structures shall be maintained, tuckpointed and properly cleaned when necessary. Masonry shall be cleaned only when necessary to <br />halt deterioration or to remove stains, and shall be done with the gentlest method possible, such as low pressure water and soft natural bristle <br />bushes. <br />Stucco surfaces shall be maintained by cleaning and repainted when necessary. When repairing stucco a stucco mixture shall be used. <br />Recommended <br />Whenever possible, the original building materials should be restored. <br />Aluminum or vinyl siding may be used when it is the only feasible alternative to maintaining the original surface material. When used over <br />wood surfaces, this siding should be the same size and style as the original wood. However it must be noted that such material can contribute <br />to the deterioration of the structure from moisture and insects. <br />Mortar joints should be repointed only when there is evidence of moisture problems or when sufficient mortar is missing to allow water to <br />stand in the mortar joint. Existing mortar shall be duplicated in composition, color, texture, joint size, method of application, and joint <br />profile. <br />Prohibited <br />Wood siding shall not be resurfaced with new material, such as artificial stone, brick veneer, asbestos or asphalt shingles, which is <br />inappropriate or was unavailable when the building was constructed. Sandblasting or the use of harsh detergents shall not be used on <br />masonry or stucco. This method of cleaning erodes the surface material and accelerates deterioration. <br />Not Recommended <br />Waterproof or water repellant coatings or surface consolidation treatments should not be used unless required to solve a specific problem that <br />has been studied and identified. Coatings are frequently unnecessary, expensive, and can accelerate deterioration of the masonry. Mortar <br />joints which do not need repointing should not be. Repointing should not be done with mortar of high Portland cement content, which can <br />often create a bond that is stronger than the building materials. This can cause deterioration as a result of differing coefficient of expansion <br />and the differing porosity of the material and the mortar, which can result in serious damage to adjacent brick. Paint should not be removed <br />from masonry surfaces indiscriminately. <br />B. ROOFS AND ROOFING <br />[…] <br />C. WINDOWS AND DOORS <br />Windows and door frames are in nearly all cases wood. Brick structures have stone sills and brick lintels; masonry block structures have <br />masonry sills and lintels. In some cases where aluminum siding has been applied window trim has been covered. About half of the <br />structures in the district have aluminum storm windows, the other half wood storm windows. <br />Required <br />Original windows and doors including sash, lintels, sills, shutters, decorative glass, pediments, hoods, and hardware shall be retained or when <br />deteriorated beyond repair, replaced with duplicates of the existing or original. <br />Recommended <br />Wood frame storm windows and doors, painted to match the existing or original, should be used but should not damage existing frames and <br />should be removable in the future. If new sash and doors are used, 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 used they should be of <br />canvas material. <br />Prohibited <br />Existing or original doors, windows, and hardware shall not be discarded when they can be restored and re-used in place. New window and <br />door openings which would alter the scale and proportion of the building should not be introduced. Inappropriate new window and door <br />features such as aluminum insulating glass combinations that require the removal of the original windows and doors shall not be installed. <br />Not Recommended <br />Metal, vinyl, or fiberglass awnings, hoods, and fake shutters that would detract from the existing character or appearance of the building <br />should not be used. <br /> <br />SITE VISIT REPORT: <br />N/A <br /> <br />STAFF RECOMMENDATION: Staff recommends approval. <br /> <br />Prepared by <br />Adam Toering, Historic Preservation Administrator