079500 - Exterior Expansion Control.pdf

Armed Forces Retirement Home Sheridan Building Design Documents | Specifications

Bid Addendum 2/12/25

EXPANSION CONTROL 079500 - 1

SECTION 079500 – EXTERIOR EXPANSION CONTROL

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Exterior wall and slab expansion control systems.

2.

3.

4.

B. Related Requirements:

1. Division 07 Section "Joint Sealants" for preformed joint sealants in non-fire-rated applications.

1.2 ACTION SUBMITTALS

A. Shop Drawings: For each expansion control system specified. Include plans, elevations, sections, details, splices, blockout requirement, attachments to other work, and line diagrams showing entire route of each expansion control system. Where expansion control systems change planes, provide isometric or clearly detailed drawing depicting how components interconnect.

B. Product Schedule: Prepared by or under the supervision of the supplier. Include the following information in tabular form:

1. Manufacturer and model number for each expansion control system.

2. Expansion control system location cross-referenced to Drawings.

3. Nominal joint width.

4. Movement capability.

5. Classification as thermal.

6. Materials, colors, and finishes.

7. Product options.

8. Fire-resistance ratings.

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EXPANSION CONTROL 079500 - 2

1.3 INFORMATIONAL SUBMITTALS

A. Product Test Reports: For each fire barrier provided as part of an expansion control system, for tests performed by a qualified testing agency.

PART 2 - PRODUCTS

2.1 SYSTEM DESCRIPTION

A. General: Provide expansion control systems of design, basic profile, materials, and operation indicated. Provide units with capability to accommodate variations in adjacent surfaces.

1. Furnish units in longest practicable lengths to minimize field splicing. Install with hairline mitered corners where expansion control systems change direction or abut other materials.

2. Include factory-fabricated closure materials and transition pieces, T-joints, corners, curbs, cross-connections, and other accessories as required to provide continuous expansion control systems.

2.2 EXTERIOR EXPANSION CONTROL SYSTEMS

A. Basis-of-Design Product: Emseal. Subject to compliance with requirements, provide product comparable by one of the following:

1. Construction Specialties, Inc.

2. MM Systems Corporation.

B. Source Limitations: Obtain expansion control systems from single source from single manufacturer.

C. Roof Expansion Joint: Emseal DFR2

1. Design Criteria:

a. Nominal Joint Width: As indicated on Drawings.

b. Movement Capability: -50 percent/+50 percent.

c. Type of Movement: Thermal.

d. Fire-Resistance Rating: 2-Hour.

2. Type: Preformed cellular foam with sealant face.

a. Foam Material: Manufacturer's standard.

b. Sealant Face: Factory applied and cured silicone.

3. Location: As indicated on drawings.

D. Bellows with Metal Flanges: Flexible Bellows. WABO ECF-300 by Watson Bowman

E. Expansion Joint Cap: Fabricated to detail indicated. 032-inch aluminum sheet with continuous hold-down clips. Finish to match roof.

ErnieJoy Cloud

Bid Addendum 2/12/25

EXPANSION CONTROL 079500 - 3

F. Floor-to-Floor: Emseal RJ0400

1. Design Criteria:

a. Nominal Joint Width: 1 inch.

b. Movement Capability: -50 percent/+50 percent.

c. Type of Movement: Seismic.

2. Type: Preformed cellular foam with sealant face.

a. Foam Material: Manufacturer's standard.

b. Sealant Face: Vehicular / Traffic Grade Silicone Surface Seal.

1) Color: UV Stable Gray.

3. Location: Interior slab-on-grade to exterior concrete apron joint at door locations and as indicated on drawings.

2.3 MATERIALS

A. Cellular Foam Seals: Extruded, compressible foam designed to function under compression.

B. Fire Barriers: Any material or material combination, when fire tested after cycling, designated to resist the passage of flame and hot gases through a movement joint and to meet performance criteria for required fire-resistance rating.

C. Accessories: Manufacturer's standard anchors, clips, fasteners, set screws, spacers, and other accessories compatible with material in contact, as indicated or required for complete installations.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces where expansion control systems will be installed for installation tolerances and other conditions affecting performance of work.

1. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Prepare substrates according to expansion control system manufacturer's written instructions. Coordinate and furnish anchorages, setting drawings, and instructions for installing expansion control systems. Provide fasteners of metal, type, and size to suit type of construction indicated and to provide for secure attachment of expansion control systems.

B. Cast-In Frames: Coordinate and furnish frames to be cast into concrete.

3.3 INSTALLATION

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EXPANSION CONTROL 079500 - 4

A. Comply with manufacturer's written instructions for storing, handling, and installing expansion control systems and materials unless more stringent requirements are indicated.

B. Foam Seals: Install with adhesive recommended by manufacturer.

1. Apply bead of silicone sealant (matching the factory applied silicone) continuous along the edges of each expansion joint.

C. Terminate exposed ends of expansion control systems with field- or factory-fabricated termination devices.

3.4 PROTECTION

A. Do not remove protective covering until finish work in adjacent areas is complete. When protective covering is removed, clean exposed metal surfaces to comply with manufacturer's written instructions.

B. Protect the installation from damage by work of other Sections. Where necessary due to heavy construction traffic, remove and properly store cover plates or seals and install temporary protection over expansion control systems. Reinstall cover plates or seals prior to Substantial Completion of the Work.

END OF SECTION 079500