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#1099 & #1399 04500 - 4 MASONRY RESTORATION B. Carefully move or remove all equipment, fixtures, conduits, pipe, fittings, hardware, finish material, or building accessories as necessary to perform the Work of this section without damage or disfiguration to the existing materials. C. Perform mockup standard at designated work area. 3.3 DESIGNATED WORK AREAS A. When preparation is completed, set up staging or scaffolding equipment and related provisions in area directed. B. Assist Owner/Architect representative in inspection from staging or scaffolding to define and record exact areas of work to be performed. C. Keep daily tabulations of actual units of work performed on each designated work area. Justify these tabulations each day with Owner/Architect's tabulations to keep a running balance. 3.4 TOTAL RE -POINTING AREAS A. Cut out 100% of all mortar joints in designated areas to a minimum depth of 5/8" to 3/4", or deeper if necessary, until sound mortar is reached. Back of cut out joint must be squared out to a uniform depth. Diamond -bladed circular saw or circular grinders may be used providing it has been demonstrated in the sample mockup area that they can be used without damage to the edges or surface of the adjacent brick or to other adjacent finish materials. A diligent effort shall be made to remove the final surface of mortar next to the existing brick chiseling or scraping off by hand. Continued use of saws and or grinders is subject to keeping to the standards established during the mockup approval process. Any brick or other materials that are damaged during mortar removal shall be replaced at no cost to the Owner. B. Square out corners where circular saws or grinders reach the end of re -pointing areas. C. Remove all cracked or deteriorated brick and replace with new brick. Rake new mortar joint to depth of adjacent mortar if in a repointing area. D. Remove all dust and debris from cut out joints by brushing or by pressure blowing air or water. E. Dampen back of joint and adjacent brick (if not all ready damp from above operations) with water then allow it to surface dry. F. New pre -hydrated mortar shall then be packed in thin layers until the joint is full. Mortar guns may be used providing the nozzle reaches the back of the joint, mortar is applied in thin layers and compacted between each layer. G. After the filled joint has hardened slightly, tool join to a smooth concave shape with an appropriately sized slicker bar. H. In hot weather, keep sun off re -pointed areas and keep damp until initial cure is completed.