4-Bid C26-08 – SCCPSS Alternative Schools Renovation GMC PROJECT MANUAL - V2 .pdf

PROJECT MANUAL

SCCPSS ALTERNATIVE SCHOOLS RENOVATION

Garden City, Georgia

October 3, 2025

Issue for Construction

Prepared By

Go od wy n M i l ls Ca w oo d, LL C

114 Ba rn a rd St .

Sui te 114 - 2B

Sav an na h , G A 314 01

T 9 12. 226. 16 67 w w w . g m c n e tw o r k . c o m

GMC PROJECT NUMBER: ASAV240002

Volume 2

OWNERSHIP OF DOCUMENTS AND DISCLAIMER

The Project Manual, Technical Specifications, Drawings, and all other documents relating to this project have been prepared for this individual and particular project, and for the exclusive use of the original Owner, developer or other party so indicated.

Actual project conditions and as-built conditions may vary significantly. Changes made during bidding, negotiations, construction, due to additions or deletions of portions of this project, and/or for other reasons, may not be indicated in these documents.

These documents may not be used or relied upon as a certification of information indicated, or used for any other project, by any third parties or other parties, for any purpose whatsoever, without the prior written consent of Goodwyn Mills Cawood, LLC, or prior to receipt of mutually agreed to compensation paid to Goodwyn Mills Cawood, LLC, therefore.

The ownership, copyrights, and all other rights to these documents are reserved by Goodwyn

Mills Cawood, LLC, including in part, all copies thereof in any form or media. Reproduction of the material contained in these documents or substantial quotation of their provisions without prior written permission of Goodwyn Mills Cawood, LLC, violates the copyright and common laws of the United States and will subject the violator to legal prosecution.

Goodwyn Mills Cawood, LLC

Post Office Box 242128

Montgomery, AL 36124-2128 and

Birmingham, Alabama

Andalusia, Alabama

Auburn, Alabama

Daphne, Alabama

Eufaula, Alabama

Huntsville, Alabama

Brentwood, Alabama

Mobile, Alabama

New Orleans, Louisiana

Opelika, Alabama

Vernon, Alabama

Atlanta, Georgia

Augusta, Georgia

Brunswick, Georgia

Savannah, Georgia

Columbia, South Carolina

Greenville, South Carolina

Nashville, Tennessee

Pensacola, Florida

Sarasota, Florida

Tampa, Florida

Charlotte, North Carolina

ARCHITECTURE■ENGINEERING■ENVIRONMENTAL■GEOTECHNICAL■INTERIOR DESIGN

LANDSCAPE ARCHITECTURE■PLANNING■SURVEYING■TRANSPORTATION

SCCPSS ALTERNATIVE SCHOOLS RENOVATION GARDEN CITY, GEORGIA

GOODWYN MILLS CAWOOD, LLC. PROJECT MANUAL TABLE OF CONTENTS

GMC PROJECT NO. ASAV240002 1 of 6

PROJECT MANUAL

TABLE OF CONTENTS

DIVISION 0 - PROCUREMENT AND CONTRACTING REQUIREMENTS:

00 00 10

00 00 20

TABLE OF CONTENTS

CONTRACT DOCUMENTS

DIVISION 1 - GENERAL REQUIREMENTS:

01 11 00

01 14 00

01 21 00

01 22 13

01 23 00

01 25 00

01 26 00

01 29 00

01 31 00

01 32 00

01 32 33

01 33 00

01 40 00

01 42 00

01 45 00

01 50 00

01 58 00

01 60 00

01 71 23

01 73 29

01 74 00

01 74 19

01 77 20

01 78 23

01 78 39

01 78 43

01 79 00

SUMMARY OF WORK

WORK RESTRICTIONS

ALLOWANCES

UNIT PRICES

ALTERNATES

SUBSTITUTION PROCEDURES

CONTRACT MODIFICATION PROCEDURES

PAYMENT PROCEDURES

PROJECT MANAGEMENT AND COORDINATION

CONSTRUCTION PROGRESS DOCUMENTATION

PHOTOGRAPHIC DOCUMENTATION

SUBMITTAL PROCEDURES

QUALITY REQUIREMENTS

REFERENCES STANDARDS AND DEFINITIONS

QUALITY CONTROL

TEMPORARY FACILITIES

PROJECT IDENTIFICATION

PRODUCT REQUIREMENTS

FIELD ENGINEERING

CUTTING AND PATCHING

CLEANING

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

PROJECT CLOSEOUT

OPERATION AND MAINTENANCE DATA

PROJECT RECORD DOCUMENTS

SPARE PARTS

DEMONSTRATION AND TRAINING

DIVISION 2 – EXISTING CONDITIONS:

02 41 19 SELECTIVE DEMOLITION

DIVISION 3 - CONCRETE:

03 30 00 CAST-IN-PLACE CONCRETE

GMC PROJECT NO. ASAV240002 2 of 6

03 36 60

03 51 13

03 62 00

SEALED CONCRETE FLOOR

CEMENTITIOUS ROOF DECK

NON-SHRINK GROUTING

DIVISION 4 - MASONRY:

04 01 05

04 22 00

MASONRY RESTORATION AND CLEANING

CONCRETE UNIT MASONRY

DIVISION 5 - METALS:

05 12 00

05 31 00

05 40 00

05 50 00

05 51 33

05 52 00

STRUCTURAL STEEL FRAMING

STEEL DECKING

COLD-FORMED METAL FRAMING

METAL FABRICATIONS

EXTERIOR ALUMINUM LADDER

METAL RAILINGS

DIVISION 6 – WOOD, PLASTICS AND COMPOSITES:

06 10 00

06 10 53

06 41 16

ROUGH CARPENTRY

MISCELLANEOUS ROUGH CARPENTRY

PLASTIC-LAMINATE-CLAD ARCHITECTURAL CABINETS

DIVISION 7 - THERMAL AND MOISTURE PROTECTION:

07 10 00

07 19 00

07 21 16

07 26 50

07 27 26

07 41 13

07 50 01

07 54 23

07 60 00

07 71 14

07 71 29

07 72 13

07 84 00

07 84 13

07 84 43

07 92 00

07 92 19

07 95 00

DAMPROOFING

WATER REPELLENTS

BLANKET INSULATION

UNDER SLAB VAPOR BARRIER

FLUID-APPLIED MEMBRANE AIR BARRIERS

METAL ROOF PANELS (STANDING SEAM METAL ROOFS)

LOW ROOF

THERMOSPLASTIC POLYOLEFIN (TPO) MEMBRANE ROOFING

FLASHING AND SHEET METAL

MANUFACTURED COPINGS AND ROOF EDGE FASCIAS

MANUFACTURED ROOF EXPANSION JOINTS

MANUFACTURED CURBS

FIRESTOPPING

PENETRATION FIRESTOPPING

FIRE RESISTIVE JOINT SYSTEMS

JOINT SEALANTS

ACOUSTICAL JOINT SEALANTS

EXPANSION CONTROL

DIVISION 8 - OPENINGS:

08 11 13 HOLLOW METAL DOORS AND FRAMES

GMC PROJECT NO. ASAV240002 3 of 6

08 14 16

08 31 13

08 41 13

08 71 00

08 74 00

08 80 00

08 87 23

FLUSH WOOD DOORS

ACCESS DOORS AND FRAMES

ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS

DOOR HARDWARE

ACCESS DOOR CONTROL HARDWARE

GLAZING

SAFETY AND SECURITY FILMS

DIVISION 9 - FINISHES:

09 05 61

09 21 16

09 22 16

09 24 00

09 29 00

09 29 20

09 30 00

09 51 13

09 54 46

09 65 00

09 65 13

09 65 66

09 68 13

09 84 33

09 91 00

09 96 00.1

09 96 00.5

09 96 46

MOISTURE VAPOR EMISSION CONTROL

GYPSUM BOARD ASSEMBLIES

NON-STRUCTURAL METAL FRAMING

CEMENT PLASTERING

GYPSUM BOARD

FINISHING GYPSUM BOARD

TILING

ACOUSTICAL PANEL CEILINGS

FELT CEILING ACOUSTICAL PANELS

RESILIENT FLOORING

RESILIENT BASE

RUBBER ATHLETIC FLOORING REPAIR AND REFINISH

TILE CARPETING

ACOUSTICAL WALL ABSORBERS, DIFFUSERS, & TILES

PAINTING

HIGH PERFORMANCE COATINGS (Exterior)

HIGH PERFORMANCE COATINGS (Interior)

INTUMESCENT PAINTING

DIVISION 10 - SPECIALTIES:

10 11 00

10 11 16

10 14 00

10 21 13

10 26 13

10 28 13

10 44 00

10 51 13

10 73 16

10 75 00

10 82 16

10 85 00

MARKERBOARDS, TACKBOARDS AND ACCESSORIES

INTERACTIVE DISPLAY PANELS (WHITE-BOARDS)

SIGNAGE

PHENOLIC-CORE TOILET COMPARTMENTS

PADDED WALL SYSTEMS

TOILET ACCESSORIES

FIRE PROTECTION SPECIALTIES

METAL LOCKERS

PREFABRICATED CANOPY

FLAGPOLE

MESH SCREENS

KNOX BOX

DIVISION 11 - EQUIPMENT:

11 31 00

11 52 13

11 66 23

APPLIANCES

PROJECTION SCREENS

GYMNASIUM EQUIPMENT

GMC PROJECT NO. ASAV240002 4 of 6

11 66 47

ELECTRONIC SCOREBOARDS

DIVISION 12 - FURNISHINGS:

12 24 13

12 35 53

12 36 61

12 66 00

ROLLER WINDOW SHADES

WOOD LABORATORY CASEWORK

SOLID SURFACING COUNTERTOPS

TELESCOPING STANDS REPAIR AND REFURBISHMENT

DIVISION 13 – SPECIAL CONSTRUCTION:

NOT USED

DIVISION 14 – CONVEYING EQUIPMENT:

14 42 16 VERTICAL PLATFORM WHEELCHAIR LIFT

DIVISION 21 -FIRE SUPPRESSION:

21 05 00

21 05 23

21 05 53

21 13 00

21 30 00

COMMON WORK RESULTS FOR FIRE SUPPRESSION

VALVES FOR FIRE-SUPPRESSION PIPING

IDENTIFICATION FOR FIRE SUPPRESSION

FIRE-SUPPRESSION SPRINKLER SYSTEMS

FIRE PUMPS

DIVISION 22 - PLUMBING:

22 05 00

22 05 17

22 05 19

22 05 23

22 05 29

22 05 53

22 07 19

22 10 05

22 10 06

22 30 00

22 40 00

GENERAL PLUMBING REQUIREMENTS

SLEEVES AND SLEEVE SEALS FOR PIPING

METERS AND GAUGES FOR PLUMBING PIPING

GENERAL-DUTY VALVES FOR PLUMBING PIPING

SUPPORTS FOR PIPING AND EQUIPMENT

IDENTIFICATION FOR PIPING AND EQUIPMENT

PLUMBING PIPING INSULATION

PLUMBING PIPING

PLUMBING PIPING SPECIALTIES

PLUMBING EQUIPMENT

PLUMBING FIXTURES

DIVISION 23 -HEATING, VENTILATING, AND AIR CONDITIONING:

23 05 00

23 05 16

23 05 17

23 05 19

23 05 23

23 05 29

23 05 33

23 05 48

GENERAL HVAC REQUIREMENTS

EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

SLEEVES AND SLEEVE SEALS FOR HVAC PIPING

METERS AND GAUGES FOR HVAC PIPING

GENERAL-DUTY VALVES FOR HVAC PIPING

SUPPORTS FOR HVAC PIPING AND EQUIPMENT

HEAT TRACING FOR HVAC PIPING

VIBRATION AND SEISMIC CONTROLS FOR HVAC

GMC PROJECT NO. ASAV240002 5 of 6

23 05 53

23 05 93

23 07 13

23 07 19

23 09 00

23 09 34

23 09 93

23 21 13

23 21 14

23 21 23

23 23 00

23 25 00

23 31 00

23 33 00

23 33 00

23 34 00

23 37 00

23 38 13

23 40 00

23 52 16

23 57 00

23 65 14

23 74 16

23 74 33

23 81 26

23 81 46

23 82 39

IDENTIFICATION FOR PIPING AND EQUIPMENT

TESTING, ADJUSTING, AND BALANCING FOR HVAC

DUCT INSULATION

HVAC PIPING INSULATION

INSTRUMENTATION AND CONTROLS FOR HVAC

VARIABLE-FREQUENCY CONTROLLERS FOR HVAC

SEQUENCE OF OPERATIONS FOR HVAC CONTROLS

HYDRONIC PIPING

HYDRONIC SPECIALTIES

HYDRONIC PUMPS

REFRIGERANT PIPING

HVAC WATER TREATMENT

HVAC DUCTS AND CASINGS

AIR DUCT ACCESSORIES

DUCTWORK AND DUCT ACCESSORIES

HVAC FANS

AIR OUTLETS AND INLETS

COMMERCIAL-KITCHEN HOODS

HVAC AIR CLEANING DEVICES

CONDENSING BOILERS

HEAT EXCHANGERS FOR HVAC

INDUCED-DRAFT COOLING TOWERS

PACKAGED ROOFTOP HEAT PUMPS

DEDICATED OUTDOOR AIR UNITS

SPLIT-SYSTEM AC AND HEAT PUMPS

WATER-SOURCE UNITARY HEAT PUMPS

ELECTRIC HEATERS

DIVISION 26 -ELECTRICAL:

26 05 05

26 05 19

26 05 26

26 05 29

26 05 33.13

26 05 33.16

26 05 36

26 05 53

26 09 23

26 21 00

26 24 16

26 27 26

26 28 13

26 28 16.16

26 32 13

26 36 00

26 51 00

26 56 00

SELECTIVE DEMOLITION FOR ELECTRICAL

CONDUCTORS AND CABLES

GROUNDING AND BONDING

HANGERS AND SUPPORTS

CONDUIT FOR ELECTRICAL SYSTEMS

BOXES FOR ELECTRICAL SYSTEMS

CABLE TRAYS FOR ELECTRICAL SYSTEMS

IDENTIFICATION FOR ELECTRICAL SYSTEMS

LIGHTING CONTROL DEVICES

LOW-VOLTAGE ELECTRICAL SERVICE ENTRANCE

PANELBOARDS

WIRING DEVICES

FUSES

ENCLOSED SWITCHES

ENGINE GENERATORS

TRANSFER SWITCHES

INTERIOR LIGHTING

EXTERIOR LIGHTING

GMC PROJECT NO. ASAV240002 6 of 6

DIVISION 27 – COMMUNICATIONS:

27 51 16

27 51 29.17

CLASSROOM INTERCOM SYSTEMS

RADIO COMMUNICATION ENHANCEMENT SYSTEMS

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY:

283111

284600

BUILDING INTRUSION DETECTION

FIRE DETECTION AND ALARM

DIVISION 31 – EARTHWORK:

31 10 00

31 20 00

31 25 00

SITE CLEARING

EARTH MOVING

EROSION AND SEDIMENTATION CONTROL

DIVISION 32 – EXTERIOR IMPROVEMENTS:

32 12 16

32 13 13

32 16 13

32 17 23

32 18 16

32 31 13

ASPHALT PAVING

CONCRETE PAVING

CURBS AND GUTTERS

PAVEMENT MARKINGS

PLAYGROUND SAFETY SURFACING

PLAYGROUND FENCE AND GATES

DIVISION 33 – UTILITIES:

33 10 00

33 30 00

33 40 00

WATER UTILITIES

SANITARY SEWERAGE

STORMWATER UTILITIES

END OF TABLE OF CONTENTS

GOODWYN MILLS CAWOOD, LLC MOISTURE VAPOR EMISSION CONTROL

GMC PROJECT NO. ASAV240002 09 05 61 - 1 of 6

SECTION 09 05 61

MOISTURE VAPOR EMISSION CONTROL

GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes: Fluid-applied, resin-based, membrane-forming systems that control the moisture-vapor-emission rate of high-moisture, interior concrete to prepare it for floor covering installation.

1.3 DEFINITIONS

A. MVE: Moisture vapor emission.

B. MVER: Moisture vapor emission rate.

1.4 SUBMITTALS

A. Product Data: For each type of product.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: Employs factory-trained personnel who are available for consultation and Project-site inspection.

B. Installer Qualifications: An authorized representative who is trained and approved by manufacturer.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in original packages and containers, with seals unbroken, bearing manufacturer's labels indicating directions for storage and mixing with other components.

1.7 FIELD CONDITIONS

A. Environmental Limitations: Comply with MVE-control system manufacturer's written instructions for substrate and ambient temperatures, humidity, ventilation, and other conditions affecting system installation.

1. Store system components in a temperature-controlled environment and protected from weather and at ambient temperature of not less than 65 degrees F and not more than 85 deg F at least 48 hours before use.

2. Maintain ambient temperature and relative humidity in installation areas within range recommended in writing by MVE-control system manufacturer, but not less than 65 deg F or more than 85 deg F and not less than 40 or more than 60

GMC PROJECT NO. ASAV240002 09 05 61 - 2 of 6 percent relative humidity, for 48 hours before installation, during installation, and for 48 hours after installation unless longer period is recommended in writing by manufacturer.

3. Install MVE-control systems where concrete surface temperatures will remain a minimum of 5 deg F higher than the dew point for ambient temperature and relative humidity conditions in installation areas for 48 hours before installation, during installation, and for 48 hours after installation unless longer period is recommended in writing by manufacturer.

PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers: Subject to compliance with requirements of Contract Documents, provide products by one of manufacturers listed alphabetically below. If not listed, submit as substitution according to Conditions of the Contract and Division 01 Sections.

1. Advanced Moisture Control, Inc.

2. ARDEX America.

3. BASF Corp.

4. Floor Seal Technology, Inc.

5. KOOSTER American Corporation.

6. MAPEI America.

2.2 PERFORMANCE REQUIREMENTS

A. MVE-Control System Capabilities: Capable of suppressing MVE without failure where installed on concrete that exhibits the following conditions:

1. MVER: Maximum 15 lb. of water/1000 sq. ft. when tested according to ASTM F 1869.

2. Relative Humidity: Maximum 100 percent when tested according to ASTM F 2170 using in situ probes.

B. Water-Vapor Transmission: Through MVE-control system, maximum 0.02 perm when tested according to ASTM E 96/E 96M.

C. Tensile Bond Strength: For MVE-control system, greater than 200 psi with failure in the concrete according to ASTM D 7234.

2.3 MVE-CONTROL SYSTEM

A. A. MVE-Control System: ASTM F 3010 qualified, fluid-applied, two-component, epoxy-resin, membrane-forming system; formulated for application on concrete substrates to

GMC PROJECT NO. ASAV240002 09 05 61 - 3 of 6 reduce MVER to level required for installation of floor coverings indicated and acceptable to manufacturers of floor covering products indicated, including adhesives.

B. Substrate Primer: Provide MVE-control system manufacturer's concrete-substrate primer if required for system indicated by substrate conditions.

C. Cementitious Underlayment Primer: If required for subsequent installation of cementitious underlayment products, provide MVE-control system manufacturer's primer to ensure adhesion of products to MVE-control system.

2.4 ACCESSORIES

A. Patching and Leveling Material: Moisture-, mildew-, and alkali-resistant product recommended in writing by MVE-control system manufacturer and with minimum of 3000 psi compressive strength after 28 days when tested according to ASTM C 109/C 109M.

B. Crack-Filling Material: Resin-based material recommended in writing by MVE-control system manufacturer for sealing concrete substrate crack repair.

C. Cementitious Underlayment: If required to maintain manufacturer's warranty, provide MVE-control system manufacturer's hydraulic cement-based underlayment.

EXECUTION

3.1 EXAMINATION

A. Acceptance of Surfaces and Conditions:

1. Examine surfaces and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

2. Proceed only when unsatisfactory conditions have been corrected in a manner complying with Contract Documents.

3. Starting Work within a particular area will be construed as acceptance of surface conditions.

3.2 PREPARATION

A. Preinstallation Testing:

1. Testing Agency: Engage a qualified testing agency to perform tests.

2. Alkalinity Testing: Perform pH testing according to ASTM F 710. Install MVE-control system in areas where pH readings are less than 7.0 and in areas where pH readings are greater than 8.5.

GMC PROJECT NO. ASAV240002 09 05 61 - 4 of 6

3. Moisture Testing: Perform tests so that each test area does not exceed 1000 sq. ft and perform no fewer than three tests in each installation area and with test areas evenly spaced in installation areas.

a. Anhydrous Calcium Chloride Test: ASTM F 1869. Install MVE-control system in locations where concrete substrate MVER exceeds 3 lb of water/1000 sq. ft. in 24 hours.

b. Internal Relative Humidity Test: Using in situ probes, ASTM F 2170.

Install MVE-control system in locations where concrete substrates exhibit relative humidity level greater than 75 percent.

4. Tensile-Bond-Strength Testing: For typical locations indicated to receive installation of MVE-control system, install minimum 100 sq. ft. area of MVE-control system to prepared concrete substrate and test according to ASTM D 7234.

a. Proceed with installation only where tensile bond strength is greater than 200 psi with failure in the concrete.

B. Concrete Substrates: Prepare and clean substrates according to MVE-control system manufacturer's written instructions to ensure adhesion of system to concrete.

1. Remove coatings and other substances that are incompatible with MVE-control system and that contain soap, wax, oil, or silicone, using mechanical methods recommended in writing by MVE-control system manufacturer. Do not use solvents.

2. Provide concrete surface profile complying with ICRI 310.2R CSP 3 by shot blasting using apparatus that abrades the concrete surface with shot, contains the dispensed shot within the apparatus, and recirculates the shot by vacuum pickup.

3. After shot blasting, repair damaged and deteriorated concrete according to MVE-control system manufacturer's written instructions.

4. Protect substrate voids and joints to prevent resins from flowing into or leaking through them.

5. Fill surface depressions and irregularities with patching and leveling material.

6. Fill surface cracks, grooves, control joints, and other nonmoving joints with crack-filling material.

7. Allow concrete to dry, undisturbed, for period recommended in writing by MVE-control system manufacturer after surface preparation, but not less than 24 hours.

8. Before installing MVE-control systems, broom sweep and vacuum prepared concrete.

GMC PROJECT NO. ASAV240002 09 05 61 - 5 of 6

C. Protect walls, floor openings, electrical openings, door frames, and other obstructions during installation.

3.3 APPLICATION

A. General: Apply MVE-control system according to ASTM F 3010 and manufacturer's written instructions to produce a uniform, monolithic surface free of surface deficiencies such as pin holes, fisheyes, and voids.

1. Install primers as required to comply with manufacturer's written instructions.

B. Do not apply MVE-control system across substrate expansion, isolation, and other moving joints.

C. Apply system, including component coats if any, in thickness recommended in writing by MVE-control system manufacturer for MVER indicated by preinstallation testing.

D. Cure MVE-control system components according to manufacturer's written instructions.

Prevent contamination or other damage during installation and curing processes.

E. After curing, examine MVE-control system for surface deficiencies. Repair surface deficiencies according to manufacturer's written instructions.

F. Install cementitious underlayment over cured membrane if required to maintain manufacturer's warranty and in thickness required to maintain the warranty.

3.4 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing agency to perform installation inspections.

B. Installation Inspections: Inspect substrate preparation and installation of system components to ensure compliance with manufacturer's written instructions and to ensure that a complete MVE-control system is installed without deficiencies.

1. Verify that surface preparation meets requirements.

2. Verify that component coats and complete MVE-control-system film thicknesses comply with manufacturer's written instructions.

3. Verify that MVE-control-system components and installation areas that evidence deficiencies are repaired according to manufacturer's written instructions.

C. MVE-control system will be considered defective if it does not pass inspections.

3.5 PROTECTION

A. Protect MVE-control system from damage, wear, dirt, dust, and other contaminants before floor covering installation. Use protective methods and materials, including temporary coverings, recommended in writing by MVE-control system manufacturer.

GMC PROJECT NO. ASAV240002 09 05 61 - 6 of 6

B. Do not allow subsequent preinstallation examination and testing for floor covering installation to damage, puncture, or otherwise compromise the MVE-control system membrane.

END OF SECTION 09 05 61

GOODWYN MILLS CAWOOD, LLC GYPSUM BOARD ASSEMBLIES

GMC PROJECT NO. ASAV240002 09 21 16 - 1 of 21

SECTION 09 21 16

GYPSUM BOARD ASSEMBLIES

GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Non-load-bearing steel framing members for interior gypsum board assemblies.

2. Gypsum board attached to steel framing including the following board types:

a. Regular gypsum board.

b. Type X or type C gypsum board for fire rated assemblies.

c. Moisture and mold-resistant gypsum board.

d. Sag-resistant gypsum ceiling board.

e. Flexible gypsum board.

f. Abuse-resistant gypsum board.

3. Suspended drywall furring system.

4. Sound Insulation.

B. Related Sections:

1. Division 05 Section – "Cold-Formed Metal Framing"

2. Division 06 Section – "Miscellaneous Rough Carpentry"

3. Division 07 Section – "Penetration Firestopping"

4. Division 08 Section – "Hollow Metal Doors and Frames"

5. Division 09 Section – "Acoustical Panel Ceilings"

6. Division 09 Section – "Painting"

7. Division 22 – Plumbing sections.

8. Division 23 – Heating, Ventilating, and Air Conditioning sections.

9. Division 23 – Electrical sections.

1.3 DEFINITIONS

GMC PROJECT NO. ASAV240002 09 21 16 - 2 of 21

A. Gypsum Board Terminology: Refer to ASTM C 11 for definitions of terms for gypsum board assemblies not defined in this Section or in other referenced standards.

1.4 DESIGN AND PERFORMANCE REQUIREMENTS

A. Non-load-Bearing Steel Framing Members: Framing for interior gypsum board assemblies shall be in accord with manufacturer's product data for heights and conditions of use complying with the following maximum allowable deflection.

1. Framing supporting gypsum board receiving paint, wallcovering or similar flexible finishes: L/240.

2. Framing supporting gypsum board or cement board receiving ceramic tile, stone, plaster, and similar rigid finishes: L/360.

B. Fire-Resistance-Rated Assemblies: For fire-resistance-rated assemblies, provide materials and construction identical to those tested in assembly indicated according to ASTM E 119 by an independent testing agency.

1. Comply with fire rated assembly designs indicated or those included in the following publications:

a. Gypsum Association: GA-600 "Fire Resistance Design Manual," current edition.

b. Underwriters Laboratories, Inc.: UL "Fire Resistance Directory," current edition.

2. Fire-rated assembly designs by other testing and inspecting agency will be acceptable subject to approval of authorities having jurisdiction.

C. STC-Rated Assemblies: For STC-rated assemblies, provide materials and construction identical to those tested in assembly indicated according to ASTM E 90 and classified according to ASTM E 413 by an independent testing agency.

1.5 SUBMITTALS

A. Product Data: Submit manufacturer's product literature, including installation instructions, indicating compliance with specified requirements.

1. Mark literature to indicate only those products proposed for use.

2. Include data for fire-rated and sound-rated partitions. Include details for acoustical sealant installation.

3. Include technical data and manufacturer's details for suspended drywall furring system.

B. Product Certificates: Submit certification signed by manufacturers of gypsum board assembly components certifying that their products comply with specified requirements.

1.6 QUALITY ASSURANCE

GMC PROJECT NO. ASAV240002 09 21 16 - 3 of 21

A. Single-Source Limitations:

1. Steel Framing: Obtain steel framing members for gypsum board assemblies from a single manufacturer, unless otherwise indicated.

2. Panel Products: Obtain each type of gypsum board and other panel products from a single manufacturer.

3. Finishing Materials: Obtain finishing materials from either the same manufacturer that supplies gypsum board and other panel products or from a manufacturer acceptable to gypsum board manufacturer.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in original packages, containers, or bundles bearing brand name and identification of manufacturer or supplier.

B. Store materials inside under cover and keep them dry and protected against damage from weather, direct sunlight, surface contamination, corrosion, construction traffic, and other causes. Neatly stack gypsum panels flat to prevent sagging.

1.8 PROJECT CONDITIONS

A. Environmental Conditions, General: Establish and maintain environmental conditions for applying and finishing gypsum board to comply with ASTM C 840 requirements or gypsum board manufacturer's recommendations, whichever are more stringent.

B. Room Temperatures:

1. For non-adhesive attachment of gypsum board to framing, maintain not less than

40 deg F (4 deg C).

2. For adhesive attachment and finishing of gypsum board, maintain not less than

50 deg F (10 deg C) for 48 hours before application and continuously after until dry.

3. Do not exceed 95 deg F (35 deg C) when using temporary heat sources.

C. Ventilation: Ventilate building spaces as required to dry joint treatment materials. Avoid drafts during hot, dry weather to prevent finishing materials from drying too rapidly.

PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers; subject to compliance with requirements, provide products for each of the indicated materials by one of the listed manufacturers:

1. Steel Framing and Furring:

a. CEMCO / California Expanded Metal Products Co.

GMC PROJECT NO. ASAV240002 09 21 16 - 4 of 21

b. Clark Dietrich Building Systems, LLC.

c. Marino Ware / Div. Ware Industries, Inc.

d. The Steel Network, Inc.

2. Gypsum Board and Related Products:

a. CertainTeed Corporation.

b. G-P Gypsum Corporation / Georgia-Pacific Company.

c. Continental Building Products, Inc.

d. National Gypsum Company.

e. USG Corporation.

2.2 STEEL FRAMING FOR INTERIOR WALLS, PARTITIONS AND SOFFITS

A. Metal Finish for Framing: Provide steel framing members with protective finish complying with the following requirements:

1. Manufacturer's standard corrosion-resistant coating for interior applications except as otherwise specified.

2. Protective coating meeting ASTM A 653, G 40 hot-dip galvanized coating for framing members attached to and within 10-feet of exterior walls and where supporting ceramic tile finishes.

B. Steel Studs and Runners: ASTM C 645, with flange edges of studs bent back 90 degrees and doubled over to form 3/16-inch-wide minimum lip (return), and complying with the following requirements:

1. Thickness: Provide minimum thickness of base (uncoated) metal as specified below.

a. 0.0179-inch (25 gauge), minimum, unless otherwise indicated.

b. 0.0329-inch (20 gauge) minimum, for applications as follows:

1) For head runner, sill runner, jamb, and cripple studs at door and other openings.

2) In locations to receive abuse-resistant gypsum board.

2. Depth: 3-5/8-inches, minimum, unless otherwise indicated.

C. Deflection Tracks: Either of the following types specified fabricated from runners meeting ASTM C 645.

1. Single Long-Leg Runner System: Top runner with 2-inch deep flanges fabricated from same material as studs, minimum 0.0329-inch (20-gauge) thickness, GMC PROJECT NO. ASAV240002 09 21 16 - 5 of 21 installed with studs friction fit into top runner and with continuous bridge located within 12-inches of the top of studs to provide lateral bracing.

2. Double-Runner System: Nested top runners fabricated from same material as studs with inner runners having 2-inch deep flanges, minimum 0.0269-inch

(22-gauge); outer runner sized to friction fit over inner runner fastened to studs.

D. Steel Rigid Furring Channels: ASTM C 645, hat shaped section, complying with the following requirements:

1. Thickness: 0.0179-inch (25 gauge) minimum base (uncoated) metal thickness, unless otherwise indicated.

2. Depth: 7/8-inch unless otherwise indicated.

E. Z-Shaped Furring: With slotted or non-slotted web, face flange of 1-1/4 inches, wall attachment flange of 7/8 inch, minimum bare metal thickness of 0.0179 inch (25 gauge), and depth required to fit insulation thickness or as indicated.

F. Steel Resilient Furring Channels: Manufacturer’s standard product designed to reduce sound transmission, fabricated from steel sheet complying with ASTM A 653 or

ASTM A 568 to form 1/2-inch deep channel of the following configurations:

1. Single-Leg Configuration: Asymmetric-shaped channel with face connected to a single flange by a single-slotted leg (web); 1-1/2-inch face width.

2. Double-Leg Configuration: Hat-shaped channel, with 1-1/2-inch-wide face connected to flanges by double-slotted or expanded-metal legs (webs).

G. Steel Channel Bridging: Cold-rolled steel, 0.0598-inch minimum thickness of base

(uncoated) metal and 7/16-inch wide flanges, 1-1/2 inches deep, 475 lb./1000 lineal feet, unless otherwise indicated.

H. Steel Flat Strap and Backing Plate: Steel sheet for blocking and bracing complying with

ASTM A 653 or ASTM A 568, length and width as indicated; 0.0598-inch (16 gauge) minimum base metal (uncoated) thickness.

2.3 STEEL FRAMING COMPONENTS FOR SUSPENDED AND FURRED CEILINGS

A. General: Provide components of sizes indicated but not less than that required to comply with ASTM C 754 for conditions indicated.

B. Cast-in-Place and Post installed Anchors in Concrete: Anchors of type indicated below, fabricated from corrosion-resistant materials, with holes or loops for attaching hanger wires, and with capability to sustain, without failure, a load equal to five times that imposed by ceiling construction, as determined by testing according to ASTM E 488 conducted by a qualified independent testing agency.

1. Cast-in-place type designed for attachment to concrete forms.

2. Expansion anchor.

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C. Powder-Actuated Fasteners in Concrete: Fastener system of type suitable for application indicated, fabricated from corrosion-resistant materials, with clips or other accessory devices for attaching hangers of type indicated, and with capability to sustain, without failure, a load equal to 10 times that imposed by ceiling construction, as determined by testing according to ASTM E 1190 conducted by a qualified independent testing agency.

D. Wire Ties: ASTM A 641, Class 1 zinc coating, soft temper, 0.062 inch thick.

E. Wire Hangers for Interior Ceilings: ASTM A 641, Class 1 zinc coating, soft temper, 0.162-inch diameter.

F. Rod Hangers: Minimum 1/4-inch diameter, galvanized, threaded cold-drawn mild steel.

G. Channels: Cold-rolled steel, 0.0598-inch minimum thickness of base (uncoated) metal and 7/16-inch-wide flanges, and as follows:

1. Carrying Channels: 2 inches deep, 590 lb./1000 lineal feet, unless otherwise indicated.

2. Furring Channels: 3/4 inch deep, 300 lb./1000 lineal feet, unless otherwise indicated.

3. Finish For Interior Suspension System: Manufacturer’s standard corrosion resistant zinc coating.

H. Steel Studs for Furring Channels: ASTM C 645, with flange edges of studs bent back 90 degrees and doubled over to form 3/16-inch wide minimum lip (return), and complying with the following requirements for minimum thickness of base (uncoated) metal and for depth:

1. Thickness: 0.0329 inch (20 gauge), unless otherwise indicated.

2. Depth: 2-1/2 inches, unless otherwise indicated.

3. Protective Coating: Manufacturer’s standard corrosion-resistant coating unless indicated otherwise.

I. Steel Rigid Furring Channels: ASTM C 645, hat shaped, depth of 7/8-inch, and minimum thickness of base (uncoated) metal as follows:

1. Thickness: 0.0329-inch (20 gauge), unless otherwise indicated.

2. Protective Coating: Manufacturer’s standard corrosion-resistant coating unless indicated otherwise.

2.4 SUSPENDED DRYWALL FURRING SYSTEM

A. Acceptable manufacturers; subject to compliance with specified requirements:

1. Armstrong World Industries, Inc.

2. Chicago Metallic Corp.

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3. USG Interiors, Inc.

B. Characteristics:

1. Structural Classification: Meeting ASTM C635, Heavy Duty classification.

2. System Performance: Suspension system components, hangers and fastening devices shall be capable of supporting loads of light fixtures, ceiling grilles and gypsum board with a maximum deflection of 1/360 of the span, tested in accord with ASTM C635.

3. Material: Components fabricated from minimum 0.020-inch thickness, galvanized cold-rolled steel.

4. Suspension System Components:

a. Main Runners and Cross Tees: Double web tees with factory punched cross tee slots, hanger holes, and interlocking end tab couplings. Tees shall be of fabrication with either wide knurled metal face flanges or capped face flanges as per manufacturer's system designed for screw attachment of gypsum board panels.

b. Cross Furring Channels: Manufacturer’s hat-shaped section having knurled metal flange face with end tabs designed for interlocking with main runners.

c. Edge Tracks: Channel or angle shaped tracks in manufacturer's standard size; same material as runners and tees.

C. Wire Hangers, Braces, and Ties: Provide wires complying with the following requirements:

1. Zinc-Coated, Carbon-Steel Wire: ASTM A 641, Class 1 zinc coating, soft temper.

2. Size: Select wire diameter so its stress at 3 times hanger design load

(ASTM C 635, Table 1, "Direct Hung") will be less than yield stress of wire but provide not less than 0.106-inch (12-gauge) diameter wire.

D. Accessories: Provide manufacturer's assorted clips, tees, struts, stabilizers, bracings and components to construct ceiling transitions, curves, offsets and bulkheads indicated.

2.5 GYPSUM BOARD PRODUCTS

A. General:

1. Lengths: Provide gypsum board of types indicated in maximum lengths available that will minimize end-to-end butt joints in each area indicated to receive gypsum board application.

2. Widths: Provide gypsum board in widths of 48-inches.

B. Gypsum Wallboard: Meeting ASTM C 1396 and as follows:

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1. Types:

a. Regular Gypsum Board: Provide for vertical surfaces, unless otherwise indicated.

b. Type X or Type C Gypsum Board: Provide as required by fire-resistance-rated assemblies indicated on Drawings.

c. Sag-Resistant Gypsum Ceiling Board: Provide for ceiling applications.

2. Edges: Tapered.

3. Thickness: As indicated on drawings.

C. Moisture and Mold Resistant Gypsum Board: Meeting ASTM C 1396, with moisture-and mold-resistant core and paper surfaces.

1. Mold Resistance: No mold growth when tested per ASTM D 3273 and having a score of 10 as rated according to ASTM D 3274.

2. Long Edges: Tapered.

3. Thickness: As indicated on drawings.

D. Flexible Gypsum Board:

1. Acceptable Products; subject to compliance with specified requirements:

a. CertainTeed Corporation; 1/4" Flex Gypsum Board.

b. National Gypsum Company; High Flex® Gypsum Wallboard.

c. United States Gypsum Co.; Sheetrock® Flexible Gypsum Panels.

2. Type: Gypsum core panels encased in heavy finish paper on face and back complying with ASTM C 1396; manufactured to provide flexible bending capabilities for radii curved construction applications.

a. Thickness: 1/4-inch.

b. Long Edges: Tapered.

E. Abuse-Resistant Gypsum Board:

1. Acceptable Products; subject to compliance with specified requirements:

a. CertainTeed Corporation; Extreme Abuse.

b. Continental Building Products, Inc.; Protecta® AR 100 Type X.

c. National Gypsum Company; Hi-Abuse XP Fire-Shield Wallboard.

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2. Characteristics: Abuse–resistant, fiberglass-reinforced non-combustible, high density, gypsum panels meeting ASTM C1396, type 'X' core and surfaced with heavy duty, abrasion and indentation resistant, paper facing.

a. Abuse-Resistance Classification: Complying with ASTM C1629 for not less than the classification level specified for indicated properties.

1) Soft Body Impact Resistance: Level 2.

2) Hard Body Impact Resistance: Level 1.

3) Surface Abrasion Resistance: Level 3.

4) Surface Indentation Resistance: Level 1.

b. Fire Performance: Tested in accord with ASTM E 119 for use in fire resistance design assemblies.

c. Combustibility: Non-combustible gypsum core when tested in accord with ASTM E 136.

d. Edges: Long sides tapered.

e. Thickness: 5/8-inch.

2.6 TRIM ACCESSORIES

A. Accessories for Interior Installation: Cornerbead, edge trim, and control joints complying with ASTM C 1047 and requirements indicated below:

1. Material: Formed metal of steel sheet zinc coated by hot-dip process or rolled zinc or plastic:

2. Shapes indicated below by reference to Fig. 1 designations in ASTM C 1047:

a. Cornerbead on outside corners, unless otherwise indicated.

b. LC-bead with both face and back flanges; face flange formed to receive joint compound. Use LC-beads for edge trim, unless otherwise indicated.

c. L-bead with face flange only; face flange formed to receive joint compound. Use L-bead where indicated.

d. U-bead with face and back flanges; face flange formed to be left without application of joint compound. Use U-bead where indicated.

e. One-piece control joint formed with V-shaped slot and removable strip covering slot opening.

2.7 JOINT TREATMENT MATERIALS

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A. General: Provide joint treatment materials complying with ASTM C 475 and the recommendations of both the manufacturers of sheet products and of joint treatment materials for each application indicated.

B. Joint Tape for Gypsum Board: Paper reinforcing tape, unless otherwise indicated. Use pressure-sensitive or staple-attached, open-weave, glass-fiber reinforcing tape with compatible joint compound where recommended by manufacturer of gypsum board and joint treatment materials for application indicated.

C. Setting-Type Joint Compounds for Gypsum Board: Factory-packaged, job-mixed, chemical-hardening powder products formulated for use indicated.

1. Where setting-type joint compounds are indicated as a taping compound only or for taping and filling only, use formulation that is compatible with other joint compounds applied over it.

2. For prefilling gypsum board joints, use formulation recommended by gypsum board manufacturer.

3. For filling joints and treating fasteners of exterior gypsum ceiling/soffit boards, use formulation recommended by gypsum board manufacturer.

4. For topping compound, use sandable formulation.

D. Drying-Type Joint Compounds for Gypsum Board: Factory-packaged vinyl-based products complying with the following requirements for formulation and intended use.

1. Ready-Mixed Formulation: Factory-mixed product.

a. Taping compound is formulated for embedding tape and for first coat over fasteners and face flanges of trim accessories.

b. Topping compound formulated for fill (second) and finish (third) coats.

c. All-purpose compound formulated for both taping and topping compounds.

2.8 ACOUSTICAL JOINT SEALANTS

A. Acoustical Sealant:

1. Acceptable Products:

a. Pecora Corp., AIS-919 Acoustical and Insulation Latex Sealant.

b. Tremco, Inc., Acoustical Sealant.

c. Specified Technologies, Inc.; SpecSeal Smoke N' Sound Acoustical

Caulk.

d. United States Gypsum Co.; SHEETROCK Acoustical Sealant.

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2. Type: Manufacturer's standard nonsag, paintable, nonstaining latex sealant complying with ASTM C 83.

a. Products shall effectively reduce airborne sound transmission through perimeter joints and openings in building construction as demonstrated by testing representative assemblies according to ASTM E 90.

b. Provide sealants that have a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24)

2.9 SOUND INSULATION

A. Mineral Fiber Sound Attenuation Batts:

1. Acceptable Products; subject to compliance with specified requirements:

a. Fibrex Insulations, Inc.; Sound Attenuation Fire Batt Insulation (SAFB)

b. IIG MinWool, LLC; MinWool-1200 Sound Attenuation Fire Batt.

c. Rockwool Manufacturing Co., Delta SA-Fire Board.

d. Thermafiber, Inc.; Thermafiber Sound Attenuation Fire Blankets

(SAFB).

2. Type: Unfaced, mineral fiber blankets meeting ASTM C665, Type I and

ASTM C612.

a. Density: Minimum 2.5 pcf.

b. Combustibility: Non-combustible when tested in accord with ASTM

E136.

c. Surface burning characteristics: Meeting flame spread and smoke developed index specified when tested in accord with ASTM E84.

d. Flame spread index: Not less than 15.

e. Smoke developed index: Not more than 5.

f. Thickness: As indicated on drawings or as required to meet sound rated assembly design.

g. Size: Manufacturer’s standard widths to friction fit between framing members by lengths as required.

B. Fiberglass Sound Batts:

1. Acceptable Products; subject to compliance with specified requirements:

a. CertainTeed Corporation; CertaPro AcoustaTherm Batts.

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b. Johns Manville Corporation/Building Insulation Division; Sound Control

Batts.

c. Knauf Insulation; QuietTherm QT Batts.

d. Owens-Corning Fiberglas Corporation; Sonobatts Insulation.

2. Type: Unfaced, fiberglass blanket insulation meeting ASTM C665, Type I.

a. Surface burning characteristics: Meeting flame spread and smoke developed index specified when tested in accord with ASTM E84.

1) Flame spread index: Not less than 25.

2) Smoke developed index: Not more than 50.

b. Thickness: As indicated on drawings or as required to meet sound rated assembly design.

c. Size: Manufacturer’s standard width is equal to spacing of framing members.

2.10 MISCELLANEOUS MATERIALS

A. General: Provide auxiliary materials for gypsum board construction that comply with referenced standards and recommendations of gypsum board manufacturer.

B. Fasteners for Metal Framing: Provide fasteners of type, material, size, corrosion resistance, holding power, and other properties required to fasten steel framing and furring members securely to substrates involved; complying with the recommendations of gypsum board manufacturers for applications indicated.

C. Fasteners for Gypsum Board:

1. Provide steel drill screws complying with ASTM C 1002 for the following applications:

a. Fastening gypsum board to steel members less than 0.033-inch thick.

b. Fastening gypsum board to wood members.

c. Fastening gypsum board to gypsum board.

2. Provide steel drill screws complying with ASTM C 954 for fastening gypsum board to steel members from 0.033 to 0.112-inch thick.

D. Laminating Adhesive: Special adhesive or joint compound as recommended by manufacturer for laminating gypsum panels. Use adhesives that have a VOC content of

50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).

E. Isolation Strip at Exterior Walls:

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1. Asphalt-Saturated Organic Felt: ASTM D 226, Type I (No. 15 asphalt felt), nonperforated.

2. Foam Gasket: Adhesive-backed, closed-cell vinyl foam strips that allow fastener penetration without foam displacement, 1/8-inch thick, in width to suit steel stud size.

EXECUTION

3.1 EXAMINATION

A. Examine substrates to which gypsum board assemblies attach or abut, with Installer present, including hollow-metal frames, elevator hoistway door frames, cast-in anchors, and structural framing. Examine for compliance with requirements for installation tolerances and other conditions affecting performance.

B. Examine panel products before installation. Reject panels that are wet, moisture damaged, or mold damaged.

C. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Coordinate installation of ceiling suspension systems with installation of overhead structural assemblies to ensure that inserts and other provisions for anchorages to building structure have been installed to receive ceiling hangers that will develop their full strength and spacing required to support ceilings.

B. Furnish concrete inserts and other devices indicated to other trades for installation well in advance of time needed for coordination with other construction.

3.3 STEEL FRAMING INSTALLING, GENERAL

A. Steel Framing Installation Standard: Install steel framing to comply with ASTM C 754 and with ASTM C 840 requirements that apply to framing installation.

B. Install supplementary framing, blocking, and bracing at terminations in gypsum board assemblies to support fixtures, equipment services, heavy trim, grab bars, toilet accessories, furnishings, or similar construction. Comply with details indicated and with recommendations of gypsum board manufacturer or, if none available, with United States

Gypsum Co.'s "Gypsum Construction Handbook."

C. Isolate steel framing from building structure at locations indicated to prevent transfer of loading imposed by structural movement. Comply with manufacturer’s recommended details.

1. Where building structure abuts ceiling perimeter or penetrates ceiling.

2. Where partition framing and wall furring abut structure, except at floor.

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D. Do not bridge building control and expansion joints with steel framing or furring members. Independently frame both sides of joints with framing or furring members as indicated.

3.4 INSTALLING STEEL FRAMING FOR SUSPENDED AND FURRED CEILINGS

A. Suspend ceiling hangers from building structural members and as follows:

1. Install hangers plumb and free from contact with insulation or other objects within ceiling plenum that are not part of supporting structural or ceiling suspension system. Splay hangers only where required to miss obstructions and offset resulting horizontal forces by bracing, countersplaying, or other equally effective means.

2. Where width of ducts and other construction within ceiling plenum produces hanger spacings that interfere with the location of hangers required to support standard suspension system members, install supplemental suspension members and hangers in form of trapezes or equivalent devices. Size supplemental suspension members and hangers to support ceiling loads within performance limits established by referenced standards.

3. Secure wire hangers by looping and wire-tying, either directly to structures or to inserts, eyescrews, or other devices and fasteners that are secure and appropriate for substrate, and in a manner that will not cause them to deteriorate or otherwise fail.

4. Secure angle, and rod hangers to structure, including intermediate framing members, by attaching to inserts, eyescrews, or other devices and fasteners that are secure and appropriate for structure as well as for type of hanger involved, and in a manner that will not cause them to deteriorate or otherwise fail.

5. Do not support ceilings directly from permanent metal forms. Furnish cast-in-place hanger inserts that extend through forms.

6. Do not attach hangers to steel deck tabs.

7. Do not attach hangers to steel roof deck. Attach hangers to structural members.

8. Do not connect or suspend steel framing from ducts, pipes, or conduit.

B. Sway-brace suspended steel framing with hangers used for support. Comply with building code requirements for seismic bracing.

C. Install suspended steel framing components in sizes and at spacings indicated, but not less than that required by the referenced steel framing installation standard.

1. Wire Hangers: 48 inches on center.

2. Carrying Channels (Main Runners): 48 inches on center.

3. Furring Channels (Furring Members): 16 inches on center.

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D. Installation Tolerances: Install steel framing components for suspended ceilings so that cross-furring or grid suspension members are level to within 1/8 inch in 12 feet as measured both lengthwise on each member and transversely between parallel members.

E. Wire-tie or clip furring members to main runners and to other structural supports as indicated.

3.5 SUSPENDED DRYWALL FURRING SYSTEM INSTALLATION

A. Install suspension system in accord with manufacturer's product data and ASTM C754.

B. Space hangers at 48 inches (4 ft.) on center, maximum, in each direction. Secure to building structure by wire typing to structural framing members, fastener clip devices or inserts.

C. Tie hanger wires wrapped minimum three time tight around itself, turning ends upwards.

D. Install additional hangers at end of each suspension member and at each corner of lighting fixtures.

E. Locate hangers plumb in relation to main tees and to avoid contact with insulation covering ducts and pipes. Do not pass hangers through ducts. Alter spacing of hangers or splay hangers to avoid ducts and other obstructions, but do not exceed maximum allowable ceiling areas to be supported by each hanger. Offset horizontal forces of splayed hangers by counter-splaying or bracing. Splay wires no more than 5 inches in 4

ft. vertical drop.

F. Space main tees at 48 inches (4-ft.) on center, maximum perpendicular to structural framing. Space cross tees at 2-ft. (24-inches) on center., perpendicular to main tees to form 24 inch by 48-inch (2 ft by 4 ft) grid system.

G. Level and square suspension system within specified tolerances.

H. Where grid system exists in an unrestrained condition, brace back to building structure using hanger wire, main tee or carrying channel braces spaces at 48 inches (4-ft.) on center, maximum.

I. Construct offsets, bulkheads and ceiling transitions using manufacturer's clips, struts, bracing and devices designed to provide for a secure rigid and stable installation.

J. Install edge tracks where suspension components intersect with vertical surfaces. Attach to substrates with mechanical fasteners. Cut suspension members as required to fit into tracks.

K. Do not load suspension system to exceed specified deflection limit.

3.6 INSTALLING STEEL FRAMING FOR INTERIOR WALLS, PARTITIONS AND SOFFITS

A. Install runners (tracks) at floors, ceilings, and structural walls and columns where gypsum board stud assemblies abut other construction. Where studs are installed directly against exterior walls, install asphalt felt strips or foam gaskets between studs and wall.

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B. Installation Tolerances: Install each steel framing and furring member so that fastening surfaces do not vary more than 1/8-inch from the plane formed by the faces of adjacent framing.

C. Extend partition framing full height to structural supports or substrates above suspended ceilings, except where…