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. `+ <br /> • GROUT: Grout may be compoaed of mortar retemQered with water. <br /> JOINTS: All joints exposed to the weather ah�ll be tooled. All � <br /> joints within the firebox sha11 not e�cceed 1/4". <br /> CONSTRUCTION: When the bricks are being 1sid, they shall be <br /> sufficiently damp, and the mortar sufficiently soft, <br /> so that the mortar will remain plastic to permit the <br /> units to be leveled and plumbed imanediately after <br /> being laid without losing bond. All rnasonry work <br /> shall be accurately executed and in conformity with <br /> the plans. No brick less than 1/2 length shall be <br /> used in exposed work. Head and bed joints shall be <br /> solidly filled with mortar and brick shall be shoved <br /> into place. <br /> Fireplaces are generally of two types. One type is <br /> constructed on concrete slab floors and the other type <br /> is constructed in a frame floor using a cantilevered <br /> hearth. <br /> The generally accepted method of construction of a <br /> fireplace from the hearth up is as follows : the <br /> fireplace is laid out • the back of the fireplace is <br /> constructed to a scaffold height approximate2y five <br /> feet; and then the firebox is constructed and backfilled <br /> with te�pered mortar. Do not grout solidly behind firebox <br /> wall to allow for expansion of firebox. <br /> Some fireboxes are eonstructed without the face, leaving <br /> ties so the face may be added at a later date, while <br /> other fireboxes are constructed simultaneously with <br /> the face. Either way is an approved method of <br /> construction. <br />