Laserfiche WebLink
watertiight. This will decrease the <br />likelihood of water reaching metal <br />anchors or interior wails. <br />• If stone shows evidence of dirt and <br />grime, it can be cleaned with a mild <br />solution of soap and water and a stiff <br />brush of either natural or synthetic <br />bristles. Never use a metal -bristled <br />brush,. <br />• Cleaning needs to start at the bottom of <br />the building and progress upwards, <br />keeping the lower levels wet or <br />frequently rinsed. This will prevent the <br />dripping water from upper cleaning <br />areas streaking or staining the lower <br />areas. <br />Repair of Stone Masonry <br />m The material between, the stone is <br />called mortar and is important to the <br />integrity of the wall. <br />• Before replacing missing or damaged <br />mortar (repointing), determine any <br />other causes for the deterioration of the <br />mortar or stone walll: leakingi roofs or <br />gutters, buildings settlement, or extreme <br />weather exposure. This will ensure <br />that the new mortar is not subjected to <br />the original sources of deterioration. <br />• If the mortar is simply missing or <br />deteriorated, it needs to be replaced <br />with mortar to match the original in <br />color, composition, and profile. <br />• Use a sand -lime recipe for mortar, <br />which is compatible with the old stone. <br />Modern masonry imortar has Portland <br />cement as a main ingredient, which <br />cures considerably harder than the <br />stone. A preservation professional, can <br />determine an appropriate mortar. <br />• Missing or severely damaged stone <br />may be repaired with a stonepatch. <br />Dutchman or soap may be cut to repair <br />or a stone may need to be replaced <br />with stone matching the original in <br />material and dilmensions, <br />Design Standards for the City of Paris, Texas 127 <br />