USG Exterior Ceiling Applications Systems Guide - Manual (Page 41)

40 USG Exterior Ceiling Applications
USG Drywall Suspension System
NOA No. 12-0924.03
75 psf uplift, for High Velocity Hurricane Zones
System Components
Main Runners DGLW26
Main Runner Splice DGSC-180, attached to main runner on each side with two no. 8, S12 screws.
(in required) Hanger wire and compression post located within 69 of splice.
Cross Tee DGLW 224
Perimeter Channel DGCM2, fastened to structure with #8 screws (or equivalent) at 89 OC
Molding
Compression Posts Size and gauge to be determined by a qualified structural engineer depending on project conditions, such as
plenum height and supporting structure type.
Sheathing panels One layer Securock Glass Mat sheathing panels, 1/29 or 5/89 thick, installed with long dimensions parallel
with main runners, attached to main runners and cross tees with #8, 1-1/49 truss head screws spaced 89 OC,
end joints staggered.
Direct Applied Fiberglass reinforcing mesh imbedded with acrylic modified cementitious basecoat, acrylic finish.
Exterio r Finish System
(by others)
For complete installation details, see Miami-Dade County Notice of Acceptance no. 12-0924.3
at miamidade.gov/economy.