11060 STAGE CURTAINS.pdf

TAFT HIGH SCHOOL 11060-1

SECTION 11060

STAGE CURTAINS

PART 1 GENERAL

1.1. RELATED DOCUMENTS:

A. Paragraph

1. Drawings and general provisions of contract, including General and Supplementary

Conditions.

1.2. RELATED WORK BY OTHERS:

A. Sufficient structural support shall be provided by others.

1.3. DESCRIPTION OF WORK:

A. Extent of each type of stage curtain is indicated on the drawings.

1. Types of stage curtains specified in this section include the following:

Front Setting: Including valance and front curtain.

Intermediate, Rear Setting: Including borders, legs and Rear travelers, & cyclorama curtain

1.4. QUALITY ASSURANCE:

A. Fabricator/Installer Qualifications:

1. Firm with not less than five years of successful experience in fabrication and installation of stage curtains similar to those required for this project.

2. Approved theatre rigging contractors:

Stagecraft Industries, Inc. Portland, Oregon (503) 286-1600

Or pre-approved equal

B. Flame Resistance Requirements:

1. Provide stage curtains, which are certified to be flame resistant in accordance with requirements of NFPA 70l.

2. Permanently attach label to each curtain indicating whether curtain is permanently and inherently flame resistant, or whether it will require retreatment after dry cleaning.

1.5. SUBMITTALS:

A. Product Data: Submit manufacturer's specifications, installation instructions, and general recommendations, including data which substantiates that materials comply with requirements, B. Certification: Submit manufacturer's certification that stage curtains comply with requirements for flame resistance.

C. Shop Drawings: Submit shop drawings, including plans, elevations, and detail sections of typical rigging elements. Show anchors, hardware, operating equipment, and other components included in manufacturer's standard product.

D. Stage Curtain Systems Design: Engage qualified designer to develop design of stage curtain system, including comprehensive project specific analysis of necessary structural system attachments in compliance with performance requirements.

Structural Performance: Engage qualified Professional Engineer of stage curtain system to determine structure withstands material weight and operational loads applicable for this project and in compliance with local

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building codes and authorities having jurisdiction.

1. Design Loads: Weight of stage curtains and track system.

1.6. COORDINATION

A. Consult and coordinate with electrical and HVAC contractors to locate hanging hardware, attachment points and access in ceiling area.

PART 2 PRODUCTS

2.1. PRODUCTS:

A. Materials:

1. Valance, Front Curtains, Legs, Borders, & Rear Curtain Fabric:

a) Inherently Flame Retardant Polyester Velour: Napped fabric of l00% IFR Filament

Polyester; 54" width minimum; not less than 48 backing ends per inch, 51 pile ends per inch, and 46 picks per inch; 1173 pile tufts per square inch; other characteristics as follows:

b) Heavy Weight: Fabric weighing not less than 24.5 ounces per linear yard with pile height of approximately l20 mils.

c) Products: Subject to compliance with requirements, provide the following heavy weight velour fabric:

"IFR Charisma", K&M Fabrics, Inc.

d) Colors: Match Architect’s samples.

2. Cyclorama Setting:

a) Cotton Backdrop: Plain-woven heavy weight seamless fabric of l00% cotton. Shall include H&H 316w walk-along track.

b) Color: Natural

3. Metal Products:

a) Steel Tube: Grade A, (16 guage) l-l/2" nominal, unless otherwise indicated. Paint with a flat, rust- inhibitive primer and finish coat paint.

b) Galvanized Steel Sheet: Zinc-coated carbon steel sheet of commercial quality, complying with ASTM A 526, G60 zinc coating; l4 gage minimum thickness (Paint same as noted above.)

c) Aluminum: Alloy and temper recommended by manufacturer for strength and corrosion resistance, mill finish, ASTM B 22l for extrusions.

d) Supports, Clamps, and Anchors: Sheet steel in manufacturer's standard gages, finish coated after fabrication.

e) Support Chain: weldless, loop steel pattern chain, not less than No. 2/0, 0.l35 thickness.

f) Inserts, Bolts and Fasteners: Manufacturer's standard units, unless otherwise indicated.

B. Fabrication:

1. Curtains:

a) General: Provide not less than 50% additional fullness for curtains, unless otherwise indicated. Horizontal seams and fabric less than half-width are not permitted.

b) Vertical Hems: Provide vertical hems not less than 2" wide, double-stitched and machine-sewn with no salvage material visible from front of curtain.

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c) Turnbacks: Where specified, provide turnbacks, formed by folding 8" of face fabric back at leading edge of panels and securing by sewing across top hem and grommeting through both layers of fabric. Do not sew turnbacks vertically.

d) Top hems: Reinforce top hems by double-stitching 3-l/2" wide heavy jute webbing to top edge with minimum l" of face fabric turned under.

e) Pleats: Provide fullness in curtains by sewing 6" of additional material into box pleats spaced at l2" centers along top hem reinforcing. Provide not less than #2 brass grommets spaced at l2" and centered on box pleats, for tie lines or "S" hooks.

f) Arrange vertical seams of valances and borders so that they fall within pleats.

g) Bottom Hems: Except for curtains which hang to floor, provide bottom hems not less than 3" deep. For floor-length curtains, provide 5" hems with separate interior heavy canvas chain pockets equipped No. 8 cadmium-plated jack chain. Stitch chain pocket so chain rides 2" above bottom edge of curtain.

2. Front Setting:

a) Valance: Fabricate valance of heavy weight IFR “Charisma” velour.

b) Front Curtain: Fabricate valance of heavy weight IFR “Charisma” velour. with 8" turnbacks at leading edge.

3. Intermediate Setting:

a) Borders, and Legs: Fabricate Borders and Leg Curtains of heavy weight IFR “Charisma” velour.

4. Rear Curtain:

b) Fabricate rear curtains of heavy weight IFR “Charisma” velour.

5. Front Curtain Track:

c) Aluminum Tracks, General: Fabricate not less than 11 gauge extruded aluminum, with each half of track in one continuous piece.

d) Heavy Duty Tracks: Equip track with heavy-duty live end double pulley and heavy-duty end single pulley. Provide single carriers, spaced on 12" centers, constructed of two polyethylene wheels fastened parallel to carrier body

e) Equip carriers with neoprene or rubber bumper, heavy-duty swivel eye and trim chain for attachment of curtain snap or "S" hook. Provide end stops for track and adjustable floor block designed to maintain proper tension on 3/8" stretch-resistant operating line of braided polypropylene or fiberglass center cord.

f) Products/Manufacturers: Provide one of the following:

H&H Model No. 401A Front Curtain cord operated bi-parting Track

6. Rear Cyclorama Track:

a) Aluminum Track shall be 2-1/2" I-beam, with 1" top, intermediate and bottom flanges, extruded from mill finish 6063-T5 aluminum. Provide unspliced in lengths up to 24'.

b) Rear Cyclorama Curtain track shall be rigged for walk-draw operation with tow-cords w/steel pull rings at each end

c) Provide single carriers, spaced on 12" centers, Equipment carriers constructed of two

Nylon-tired shielded ball bearing wheels riveted to steel body with swivel hook and trim chain. Nylatron glide strips reduce friction and noise. Supplied with 2 rubber bumpers.

d) Products/Manufacturers: Provide the following:

H&H Model #316w I-beam track w/stongback batten pipe for Walk-along operation

e) Battens: Fabricate (strongback) battens from 16 guage 1-1/2" diameter tube with minimum number of joints. As necessary for required lengths, connect pipe by means of

TAFT HIGH SCHOOL 11060-4

steel pipe sleeve not less than 18 inches long, and secure with four flush rivets, plug welds, or other equally secure method. Shop paint completed pipe battens with good quality primer in black color.

f) Pivotal Fixtures: Gear operated for 360 degree rotation. Provide handline operation so that no pull on the curtain is required to adjust the curtain position.

g) Product/Manufactures: Provide one of the following:

Atlas Silk Model No. 40x

PART 3 EXECUTION

3.1. EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirenments for supporting members, blocking, installation tolerances, clearances, and other conditions affecting performance of stage curtain work. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2. PREPARATION

A. Furnish layouts for inserts, clips and other supports required to be installed by other trades for support of tracks and battens.

3.3. INSTALLATION

A. General:

1. Install materials in accordance with manufacturer's printed instructions and recommendations, and to comply with governing regulations.

B. Battens:

1. Install battens by suspending at proper heights with steel chains spaced at not more than 6o.c.

2. Secure chains either directly to structures or to inserts, Unistrut bolts, or other devices which are secure and appropriate to substrate, and which will not deteriorate or fail with age or elevated temperatures.

C. Tracks:

1. Ceiling-Mounted: Drill track at intervals not greater than manufacturer's recommended spacing and fasten either directly to structures or to inserts, eye-screws, or other devices which are secure and appropriate to substrate, and which will not deteriorate or fail with age or elevated temperatures.

2. Wall-Mounted: Install tracks by suspending from manufacturer's special bracket clamps securely mounted to wall construction at recommended spacing.

3. Install Track: for center-parting curtains with not less than 2'- 0" overlap of track sections at center, supported by special lap clamps.

D. Curtains:

1. Track-Hung: Secure curtains to track carriers with track manufacturer's special heavy-duty

"S" hooks or snap hooks

2. Batten-Hung: Secure curtains to pipe battens with minimum 5/8" wide x 36" long braided soft cotton tie lines.

END OF SECTION