PROJECT MANUAL Specifications Seafood Removal Walmart Store No 1186 Liberty TX

3. Gridstone Brand Gypsum Ceiling Panels, by National Gypsum.
C. Substitutions: Comply with the requirements of Section 01600.
2.5 ACCESSORIES
A. Flexible curved angle trim for Sales Area Columns.
PART 3 - EXECUTION
3.1 PREPARATION/DEMOLITION
A. Examine surfaces and adjacent areas where products will be installed and verify that surfaces conform to product
manufacturer's requirements for substrate conditions. Do not proceed until unsatisfactory conditions have been
corrected.
B. Coordinate extension of existing grid ceiling system if existing system is to remain.
C. Clean or paint existing grid as shown on Drawings prior to removal of “old” panels. Refer to Section 09900.
D. Remove existing ceiling panels as shown on Drawings. Store removed panels for recycling as specified in Section
02023.
1. If ceiling batt insulation is present, remove, retain and re-install batts above new ceiling panels.
E. In new ceiling grid installation, verify that layout of hangers will not interfere with other Work.
F. Beginning of installation indicates acceptance of existing conditions.
3.2 INSTALLATION – GENERAL
A. Interface with Other Work:
1. Do not install acoustical ceilings until building is enclosed, heating is provided, dust generating activities
have terminated, and overhead work is completed, tested, and approved.
2. Schedule installation of acoustic units after interior wet work is completed.
3. Install after major above ceiling work is complete.
4. Coordinate location of hangers with other Work.
B. Site Tolerances:
1. Variation from Flat and Level Surface: 1/8 inch in 12 feet.
3.3 INSTALLATION - SUSPENSION SYSTEM
A. Install system in accordance with ASTM C636 and manufacturer's published instructions.
B. Rigidly secure acoustical ceiling system including integral mechanical and electrical components with maximum
deflection of 1/360.
C. If metal deck is not supplied with hanger tabs, coordinate installation of hanger clips during steel deck erection.
Provide additional hangers and inserts as required.
D. Hang system independent of walls, columns, ducts, pipes and conduit. Where carrying members are spliced, avoid
visible displacement of face plane of adjacent members. Where ducts or other equipment prevent regular spacing
of hangers, reinforce nearest affected hangers and related carrying channels to span extra distance.
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Walmart #1186 – Liberty, TX 04/20/11
CMA/10118.034