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A DIFFERENT PATTERN THAN VENEER WALLS <br />ORIGINAL <br />THIS DECORATIVE CHIMNEY CAP IS <br />MADE OF BRICK AND CAST STONE <br />Masonry walls must be maintained. The <br />primary problem with masonry is <br />moisture, which can erode the mortar, <br />leave mineral deposits on the surface, <br />and damage the brick through freeze - <br />thaw cycles. <br />Follow the criteria listed: <br />• Retain and maintain the original brick <br />or block material. <br />• Replace loose or missing mortar <br />using a mortar of the same <br />composition and color as the original. <br />Mortar is important to the visual and <br />physical integrity of the brick wall. <br />• Avoid using mortar that is harder than <br />the original mortar, as it can cause <br />deterioration of the historic masonry <br />material. Historic mortar has a high <br />lime content; therefore, it is as soft or <br />softer than the material it is, joining. <br />Do not use ready -mixed mason's <br />mortar when repointing brick because <br />it has a strong Portland cement <br />content and is Ihardler than historic <br />brick. <br />• Repointing mortar needs to match the <br />original in color, composition,, profile, <br />and dimension. <br />• Repair or replace flashing as, needed <br />to ensure a watertight connection <br />between the chimney and the roof. <br />• Clean brick gently and avoid abrasive <br />cleaning such as high pressure water <br />blasting or other high pressure <br />blasting material. Chemical cleaning <br />may be required to remove some <br />stains. Consult a knowledgeable <br />contractor or the Texas Historical <br />Commission or Preservation Briefs <br />(National Park Service Website) for <br />more information., <br />• Avoid installing brick or block where <br />these materials were not originally <br />,used, as, it changes the character of <br />the origiinal design. <br />Design Standards for the City of Paris, Texas 122 <br />