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trim around windows, doors, cornices, gables, eaves and other architectural features. Ample ventilation must be afforded the structure when metal or vinyl siding has been installed in order to prevent increased deterioration of the structure from moisture and/or insects. Mortar joints should be repointed only when there is evidence of moisture problems or when sufficient mortar is missing to allow water to stand in the mortar joint. Existing mortar shall be duplicated in composition, color, texture, joint size, method of application and joint profile. It is emphasized that, prior to initiating any restoration or rehabilitation effort, the property owner should contact the Historic Preservation Commission of South Bend and St. Joseph County which is located in the County/City Building of South Bend. The Commission is an invaluable source of information about all facets of rehabilitation and restoration. Prohibited Wood siding shall not be resurfaced with new material which is inappropriate or was unavailable when the building was constructed, such as artificial stone, brick veneer, asbestos or asphalt shingles. Sandblasting or the use of harsh detergents shall not be used on masonry including brick, stucco, limestone, flagstone and sandstone. This method of cleaning erodes the surface material and accelerates deterioration. Brick surfaces shall not be painted unless they had been painted originally. 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 material. This can cause deterioration as a result of the differing coefficient of expansion and the differing porosity of the material and the mortar, which can result in serious damage to adjacent brick. Paint shall not be removed from masonry surfaces indiscriminately. Not Recommended Waterproof or water repellent coatings or surface consolidation treatments should not be used on masonry surfaces unless required to solve a specific problem that has been studied and identified. Coatings are frequently necessary and expensive, and can accelerate deterioration of the masonry. Mortar joints which do not need repointing should not be repointed. STAFF RECOMMENDATION: Staff recommends approval of the removal of thedeterioratingstucco and its rusting support system and its replacement with the Dryvit E.I. F.S. product. 'Wita -4Ad;, .