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11/14/2005 22:40 7635352746 BRUCE LEHRER PAGE 66111 <br /> BXLN,X,539-Fire Resistar�ce Ratings-ANSWL 263 http://database.ul.com/cgi-b' /template/LISEXT/1 FRAME/sh... <br /> RA►PID FI,OOR SYSTEMS—Type RF,RFp,RF`tT RFR, <br /> artecrete <br /> System No.6 <br /> Snbflooring---Min 23/32 in.thick T 8c G wood struc <br /> panels,min grade "Underlayment"or"Single Floor". F grain <br /> of plywood or strength axis of panel to be perpendicul ta the <br /> joists with end joints staggered. Plywood ar panels sec to <br /> trusses with construetion adhesive and No.6d ringed <br /> nails. Staples having equal or greater withdrawal and 1 eral <br /> resistance strertgth may be substituted for the 6d ring <br /> nails. <br /> Vapor Barrier--(Optionai)-Nan 0.030 in. thick co ercial <br /> asghalt s�turated fel� <br /> Ftoor Mat Mnteriala*--(Optionai)-Min 3/8 in,to m 3/4 in. <br /> thick floor mat material loose laid over the subfloor. <br /> IJNITED STATES GYPSUM CO--LEVELROCK Brand <br /> Sound Reductian Board <br /> Alternate Floor Mat MateriaL�'�—(Optional)-Nom /4 in, <br /> thick floor mat materialloose laid over the subfloor. Fl r <br /> topping thickness shall be as specified under Floor Top ' g <br /> Mix#ure. <br /> U1�TITED STATES GYFSUM CO--LEVELROCIf�$rand <br /> Floor Underlayment SRIV.�-25 <br /> Alternate F�oor Mat Mwterials*--(Optional)-I+tom 8 in. <br /> thick floor mat material loose laid over the subfloor. <br /> SOLUTIA INC--Type SC50 <br /> Finesb Flooring—�Floor Topping MiaMre''—Min 3/ in. <br /> thickness of floor topping mixture having a min compres ive <br /> strength of 1500 psi.Thickness increased to min 1 in. for use <br /> with LEVELROCK�Brand Floor Underlayment S1tM-2 . <br /> Refer to manufacturer's inst�n�ctions accowPanYing the terial <br /> for spocific mix d�esign. <br />