Masonry Magazine December 2002 Page. 22
COVER STORY
The height of all cast stone built into masonry walls should match the brick coursing.
Standard cast stone jobs are most easily tailored to designs that call for basic and popular items such as band courses and wall cap coping, pier caps, keystones, quoins and window sill units sized to replace brick. Semi-custom projects can include almost any application where the designer is willing to specify the dimensions of the stone units on the contract documents. Some of the largest manufacturers have online catalogs with hundreds of shapes, such as can be found in the Continental Cast Stone catalog, www.cast-stone.net/designer. These catalogs allow designers and contractors to choose profiles, stretchers, and corner or end units while keeping track of linear footage.
Layout drawings are needed for projects that have many different profiles running through changing wall sections, one-of a-kind installations such as entrances, porticos and signs, or for large sections that would be difficult to cut. Base courses of stone at changing grade elevations, radius walls and applications suspended from structural concrete or steel are other necessary applications for custom cast stone.
When the installation requires layout drawings, they should be sent to the jobsite before the first cast stone delivery arrives. When more than one delivery is involved, each delivery slip should be used to mark up the layout drawings to be sure that the pieces are onsite in the desired setting sequence before proceeding with the work. The stones should be placed around the site in convenient locations to minimize handling as much as possible.
On larger custom projects, the mason contractor should request that the delivery be segmented by the producer according to phase, elevation, floor or other location relative to the structure. The segment number should be marked on the stone in an easily identifiable manner, which should be decided during the submittal phase of the project before the stone is even made. This helps to keep the stones palletized in logical setting sequence and makes it easy to tell the final location of the stone.
Jobsite Planning
ONSITE PERSONNEL should be familiar with the applicable sections of the Cast Stone Institute's specifications and the project specification pertaining to delivery, storage, setting, patching, cleaning, pointing and sealing. Where the project specification does not include a particular issue, the industry standards should be followed. The Cast Stone Institute publishes several technical papers that are useful to stone setters including Technical Bulletin #37-Job Site Handling and Installation, which is available on the Internet at www.caststone.org.
Upon delivery, all cast stone should be checked for chips, cracks, stains or broken pieces. Any damage should be noted on the delivery slips and communicated to the manufacturer or the sales representative.
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