Laserfiche WebLink
• <br /> ti Code Compliance Research Report CCRR-1043 Page 8 of 8 <br /> TABLE 4—NFPA 285 COMPLYING WALLS WITH GACO F1850 IN WALL CAVITY ONLY <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 board installed on the <br /> Use either 1,2 or 3 interior side of minimum 3-5/8 in.deep,minimum No.20 gage steel <br /> studs spaced at a maximum of 24 in.with lateral bracing every 4 ft. <br /> vertically. <br /> Floorline Firestopping Mineral wool(4.0 Ib/ft3density)friction fit in each stud cavity and at <br /> each floorline. <br /> 1.Full cavity depth or less of F1850 applied using sheathing as <br /> Cavity Insulation substrate and covering the width of the cavity and inside of the stud <br /> flange. <br /> Exterior sheathing 5/8 in.thick Type X exterior gypsum sheathing <br /> Exterior wall covering 1.Any noncombustible exterior wall covering material <br /> Use either 1 or 2 2.Any combustible exterior wall covering system that has <br /> successfully been tested in accordance with NFPA 285. <br /> 545 E.Algonquin Road •Arlington Heights• Illinois• 60005 <br /> intertek.com/buildingfrabe <br /> ACafINIErf <br /> Intertek PCA-101 <br /> Version:21 December 2017 SFT-CCRR-OP-40b <br />