YHS 50 FS Storefront System YHS 50 FS DOOR FRAMING MEMBERS (35H, INSIDE GLAZING) E1-1071 1A E9-0225 E1-1071 E9-0221 AS-0487 SECTION 12 AIR RESISTANT THRESHOLD Page-10 02-1006-07 | Effective Date: August 21, 2018