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INSTALLED ON THIS HOUSE <br />THE DISTINCT CHARACTER OF THE HOUSE <br />RESIDENTIAL BUILDING MATERIALS <br />91M=T�� <br />Locally quarried stone is seen as wall <br />surfaces, foundations, retainingwalls, <br />and curbs on a number of residential <br />buildings in Paris. Dressed stone and <br />field or rubble stone (stone not cut into a <br />rectangular shape) are the most common <br />forms. The material between the stones <br />is a soft lime mortar. <br />Follow the standards listed: <br />• Replace deteriorated stone with stone <br />that matches the original in color and <br />texture. <br />• If a wall has deteriorated or is missing <br />mortar, it needs to be replaced with <br />mortar of the same material as the <br />original in composition and color. <br />Portland cement, or mason's mortar, <br />is too Ihard and will cause the stone to <br />deteriorate and crumble. <br />• It is not recommended that stone be <br />added to the foundation or face of a <br />house because this changes the <br />original integrity of the house. <br />• Retain stone walls and posts, as they <br />are character -defining features. <br />Cleaning of Stone Masonry <br />m Do not sandblast, use abrasive <br />methods or high pressure water <br />sprays to clean, stone masonry. <br />• Chemical cleaniing may be required <br />for difficult stains or graffiti, but such <br />cleaning must be prescribed or <br />conducted by a knowledgeable <br />professional. Great care must be <br />given if a chemical cleaniing solution <br />is to be used. Some chemicals burn <br />the face of stone., <br />• Water washing is the gentlest method <br />of cleaning simple dirt and grime from <br />stone masonry surfaces. <br />Prior to any water washings methods, <br />make certain that all mortar joints are <br />sound and that the building is <br />Design Standards for the City of Paris, Texas 126 <br />