YHC 300 OG Curtain Wall System DOOR FRAMING MEMBERS WITH SINGLE GLAZING FOR DESIGN PRESSURES OF 45-55 PSF 28 28A 29 29A 27 27A SECTION 28 SECTION 28A SECTION 27 SECTION 29* SECTION 27A Effective Date: August 16, 2018 | 04-1009-07 SECTION 29A** AIR TIGHT THRESHOLD **NOT APPROVED FOR FLORIDA Page-15