YHC 300 SSG Cassette Impact Resistant 4-Sided SSG Curtain Wall with Cassette Installation Versitile Toggled Cassette System The YHC 300 SSG Cassette is a 4-side structural silicone glazed system designed for hurricane impact resistance. Framing is stick built in the field. Shop glazed cassettes interlock with integral adapters on the horizontals to create full width engagement top and bottom. Vertical sides are toggled to the mullions to complete the mechanical attachment in the field. This process makes assembly efficent and cost effective. Product Options & Features n Versatile Framing Design w Multiple system depths available w 1-5/16" glazing thickness standard w Inside & Outside corners - 90 ° and 135 ° w Accommodates splayed wall designs n Structural setting block chairs n Glazing options for 70 psf and 90 psf n Horizontal stack joints for multi-span n IBC & Florida Product Approvals w Large and Small Missile w Statewide and HVHZ