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• <br /> V 1 Code Compliance Research Report CCRR-1043 Page 7 of 8 <br /> TABLE 3-NFPA 285 COMPLYING WALLS WITH GACO F1850 ON EXTERIOR <br /> WALL COMPONENTS MATERIALS <br /> 1.Concrete Wall <br /> 2.Concrete Masonry wall <br /> Base wall system 3.One-layer of 5/8 in.thick Type X gypsum wallboard installed on <br /> Use either 1,2 or 3 the interior side of minimum 3-5/8 in.deep,minimum No.20 gage <br /> steel studs spaced a maximum of 24 in.on center(OC)with lateral <br /> bracing every 4 ft.vertically. <br /> Floorline Firestopping Mineral wool(4.0 Ib/ft3 density)friction fit in each stud cavity and at <br /> each floorline. <br /> 1.None <br /> 2.Full cavity depth or less of Gaco F1850 applied using sheathing as <br /> Cavity Insulation substrate and covering the width of the cavity and inside of the stud <br /> Use wither 1,2 or 3 flange. <br /> 3.Any noncombustible insulation(batts can be either faced or <br /> unfaced). <br /> Exterior sheathing 1.1/2 in.thick exterior gypsum sheathing <br /> Use either 1 or 2 2.5/8 in.thick Type X exterior gypsum sheathing <br /> Exterior insulation 1.None <br /> Use either 1 or 2 2.Gaco F1850 with a total maximum thickness of 4 in. <br /> 1.Brick:Standard type brick veneer anchors installed a maximum of <br /> 24 in.OC vertically in each stud. Maximum 2 in.air gap between <br /> exterior insulation and standard nominal 4 in.thick clay brick. <br /> 2.Stucco:Minimum 3/4 in.thick,exterior cement plaster and lath.A <br /> secondary water resistive barrier can be installed between the <br /> exterior insulation and the lath.The secondary water resistive <br /> Exterior Veneer barrier shall not be full-coverage asphalt or butyl-based self- <br /> Use either 1,2,3,4 or 5 adhered membranes. <br /> 3.Minimum 2 in.thick natural stone(granite,limestone,marble and <br /> sandstone).Any standard non-open-jointed installation technique <br /> can be used. <br /> 4.Minimum 1-1/2 in.thick artificial cast stone.Any standard non- <br /> open-jointed installation technique can be used. <br /> 5.Minimum 1-1/4 in.thick Terra Cotta non-open jointed.Any <br /> standard non-open-jointed installation technique can be used. <br /> 110 545 E.Algonquin Road •Arlington Heights• Illinois •60005 <br /> intertek.com/building ' <br /> CCRE011fff <br /> Intertek PCA-1O1 <br /> Version:21 December 2017 SFT-CCRR-OP-40b <br />