YHC 300 IG Curtain Wall System INSULATING GLAZING OPTIONS The following insulated glazing options are available for YHC 300 IG: A. Large Missile Impact 1-5/16 " thick glazing must be used up to 30'-0 " from grade. Glazing may also be 5/16 " or 9/16 " with adaptors; contact YKK AP for approved glass types. B. Small Missile Impact 1-5/16 " thick glazing may only be used above 30'-0 " from grade. Glazing may also be 5/16 " or 9/16 " with adaptors; contact YKK AP for approved glass types. C. Non-Impact glazing may be used above 60'-0 " from grade. Heat treatment as required to meet local building code requirements. LARGE MISSILE 90 PSF & 120 PSF SMALL MISSILE 90 PSF & 120 PSF 5/16 " 5/16 " Dow Corning 995 E9-3147 E2-0361 E9-3147 E2-0360 E2-0360 E2-0359 9/16 " 9/16 " Dow Corning 995 E9-3147 E2-0361 E9-3147 E2-0351 E2-0351 E2-0359 1-5/16 " 1-5/16 " E2-0351 E2-0361 E2-0351 Dow Corning 995 E2-0359 Page-10 04-1008-04 | Effective Date: October 2, 2016