USACE / NAVFAC / AFCESA / NASA UFGS-10 22 26.33 (October 2007)
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Preparing Activity: USACE Superseding
UFGS-10 22 26.33 (January 2007)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 10 22 26.33
FOLDING PANEL PARTITIONS
10/07
NOTE: This guide specification covers the requirements for folding panel partitions.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
NOTE: Designer should require materials, products, and innovative construction
methods and techniques which are environmentally sensitive, take advantage of
recycling and conserve natural resources.
Associated work found in other sections includes:
Steel supporting members or hanger rods, Section 05 50 13 MISCELLANEOUS METAL
FABRICATIONS.
Wood blocking, rough bucks, and headers, Section 06 10 00 ROUGH CARPENTRY.
Wood trim, wood or hardboard ceiling guard, or soffits, Section 06 20 00 FINISH
CARPENTRY.
Lock cylinders, Section 08 71 00 DOOR HARDWARE.
Operator field connections to power sources and inner connection to control
switches, Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM.
The following information should be shown on the drawings:
1. Location, size, and folding area of folding panel partitions.
2. Direction of operation, header conditions indicating height, track anchorage,
track channel, and jamb conditions.
3. Partition supporting structure. The structural support for the partition
is not part of this section; it must be indicated and specified separately.
4. A schedule of folding panel partitions by type (manually or electrically
operated), sizes, and stack space and identified by mark number or letter
5. For electrically operated partitions, show power source and desired switch
location.
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[ASTM INTERNATIONAL (ASTM)ASTM A 653/A 653M(2008) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip ProcessASTM B 221(2008) Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and TubesASTM B 221M(2007) Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)ASTM C 423(2008a) Sound Absorption and Sound Absorption Coefficients by the Reverberation Room MethodASTM D 751(2006) Coated FabricsASTM E 336(2008) Measurement of Airborne Sound Insulation in BuildingsASTM E 413(2004) Rating Sound InsulationASTM E 557(2000; R 2006) Installation of Operable PartitionsASTM E 84(2008a) Standard Test Method for Surface Burning Characteristics of Building MaterialsASTM E 90(2004) Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements][CHEMICAL FABRICS & FILM ASSOCIATION (CFFA)CFFA-W-101-D(2002) Vinyl Coated Fabric Wallcovering][NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 101(2008) Life Safety Code, 2006 EditionNFPA 252(2007) Standard Methods of Fire Tests of Door AssembliesNFPA 286(2006) Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire GrowthNFPA 70(2007; AMD 1 2008) National Electrical Code - 2008 Edition][UNDERWRITERS LABORATORIES (UL)UL 10B(2008) Fire Tests of Door Assemblies]1.2 GENERAL REQUIREMENTS
NOTE: The designer will edit this specification for manual or electric operation
of folding panel partitions as required for the project.
Supply and install [manual] [and] [electric] operation, acoustical folding panel partitions, factory finished,
supported from overhead track [without][with] floor guides, as shown on the drawings including all hardware,
seals, track and rollers as needed to close the specified opening.
1.2.1 Manual Operation
The manual operation must be a force no greater than [89] [_____] N [20] [_____] lbf to start movement at the
rate of 1.02 m/s 3.33 ft/s (200 ft/min). A removable handle must be used to extend and retract the bottom operable
seals; vertical movement of seals must be [50] [_____] mm [2] [_____] inches. Closure to the lead wall must
be by use of a flexible bulb; final closing must be accomplished by means of a lever exerting pressure against
the wall.
1.2.2 Electric Operation
Design the pressure-sensitive leading edge so that a force of [17.8] [_____] N [4] [_____] lbf will stop the
forward motion; system must stop the partition movement if people or objects are in the path of the partition
when it is being extended or in the pocket area when the panels are being folded. Provide a weight-sensitive
floor mat in the storage pocket to prevent partition movement with as little as 2.3 kg 5 lbs of weight applied.
Wall mount the electric control.
1.3 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are for [Contractor Quality Control approval.] [information only. When used, a designation following the "G"
designation identifies the office that will review the submittal for the Government.] Submit the following in
accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Manufacturer's Qualifications[; G][; G, [_____]]
Manufacturer's Sample Warranty
Statement of Code Compliance[; G][; G, [_____]]
Statement of Standards Conformity[; G][; G, [_____]]
Verification of Field Measurements[; G][; G, [_____]]
[Existing Electrical Data]
SD-02 Shop Drawings
Installation[; G][; G, [_____]]
Wiring Diagrams[; G][; G, [_____]]
Layouts[; G][; G, [_____]]
Fabrication Drawings[; G][; G, [_____]]
Drawings containing complete schematic diagrams and details required to demonstrate that the
system has been coordinated and will properly function as a unit. Show location, dimensions
and weight of folded partition; layout of the work, track and jamb fastening methods; seal details
and installation details; proposed layout and anchorage of equipment and appurtenances, and
equipment relationship to other parts of the work including clearances for maintenance and operation.
[Submit wiring diagram and installation details for electrical operator.]
SD-03 Product Data
Folding Panel Partitions[; G][; G, [_____]]
Installation Instructions[; G][; G, [_____]]
Manufacturer's descriptive data, performance charts, catalog cuts, and installation instructions
for framework, suspension system, covering, accessories[, and electrical operators].
SD-04 Samples
Folding Panel Partitions[; G][; G, [_____]]
[Three] [_____] Color samples of specified surfaces and finishes to match those specified.
Finish and color requirements are not limited to manufacturer's standard selections in order
to meet these requirements.
SD-06 Test Reports
Acoustical Test[; G][; G, [_____]]
Flame and Smoke Development Tests[; G][; G, [_____]]
Reports on laboratory acoustical requirements and acoustical test. Reports on flame and smoke
development tests.
SD-07 Certificates
Materials[; G][; G, [_____]]
Folding Panel Partitions[; G][; G, [_____]]
Certificate attesting that the materials meet the requirements specified and that partitions
have specified acoustical and flame retardant properties, as determined by test.
SD-10 Operation and Maintenance Data
Folding Panel Partitions
Data Package 1 for folding panel partitions, and Data Package 5 for electrical operators in
accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA.[ Six complete copies of operating
instructions outlining the procedures required for electrically operated partitions.] The instructions
must include the manufacturer's name, model number, service manual, parts list, and brief description
of all equipment and operating features. Include a complete list of parts and supplies, with
current unit prices and source of supply, and a list of the parts recommended by the manufacturer
to be replaced after 1 year and 3 years of service. Six complete copies of maintenance instructions
explaining routine maintenance procedures including inspection, adjustments, lubrication, and
cleaning. The instructions must list possible breakdown, methods of repair, and a troubleshooting
guide. Include instructions for equipment layout and simplified wiring and control diagrams
of the system as installed.
1.4 DELIVERY AND STORAGE
Deliver materials to the jobsite in the manufacturer's original, unopened, and undamaged packages with labels
legible and intact. Provide labels to indicate the manufacturer, brand name, size, finish, and placement location.
Store partitions and accessories in unopened packages in a manner that will prevent damage. Handle partition
materials in accordance with manufacturer's instructions. Protect materials from the weather, humidity and temperature
variations, dirt and dust, or other contaminants.
1.5 WARRANTY
Provide Manufacturer's standard performance guarantees or warranties that extend beyond a 1 year period. In
addition, provide guarantee of the pantographs, trolleys and tracks for 10 years from date of acceptance for
beneficial use.
1.6 PRECONSTRUCTION REQUIREMENTS
No less than 30 calendar days prior to the scheduled commencement of installation of Folding Panel Partitions,
submit the following to the Contracting Officer:
Manufacturer's Qualifications
Manufacturer's Sample Warranty
Statement of Code Compliance
Statement of Standards Conformity
Verification of Field Measurements and Existing Electrical Data
Fabrication Drawings and Installation Instructions
PART 2 PRODUCTS
2.1 MATERIALS
Material and equipment must be the standard products of a manufacturer regularly engaged in the manufacture of
such products and essentially duplicate items that have been in satisfactory use for at least 2 year prior to
bid opening. Equipment must be supported by a service organization that is, in the opinion of the Contracting
Officer, reasonably convenient to the site. Provide heavy-duty type hardware standard with the manufacturer.
Provide pulls and latches for all partitions. Provide partitions with [keyed locks] [privacy latches] [magnetic
contact latches] [foot bolts]. Provide [anodized aluminum [clear] [bronze]] [chrome plated] [brass plated metal]
[painted] [_____] finish hardware.
2.2 FOLDING PANEL PARTITIONS
Provide folding panel partitions using top hung ball bearing carriers which support modular panels.
a. Provide partitions made up of a series of rigid panels, each panel being a one-piece assembly. Unless
otherwise specified, use the least number of panels. The mechanical seal of the panel must actuate with
a single operating action.
b. Provide panels [paired] [single] [center folded] [omni-directional] [continuously hinged] type as
indicated.
2.2.1 Panels
NOTE: Steel skin should be a minimum of 0.6 mm (24 gage) for 1200 mm (48 inch)
panels, and 0.8 mm (22 gage) for 1500 mm (60 inches) panels.
Provide panels of [steel skin,] [reinforced aluminum,] [particleboard,] [tackable base,] laminated to appropriate
structural acoustical backing, mounted in full perimeter protective frame. Steel for the panel frames must be
a minimum of [_____] mm gauge thick steel with minimum 0.80 mm 22 gauge thick face panels spot welded to the
frame. Frame must enclose and protect all edges of the surface material. Panels must not be not more than 1.2
m 4 feet wide, except for end closure panels, and be full height to track. Panels must lock in place to form
a stable, rigid partition; low profile hinges may not project more than 6 mm 1/4 inch maximum from panel edge.
Panel surfacing must wrap around the vertical panel edges without vertical trim.
2.2.2 Finish Covering
NOTE: Wood veneer and glass are finish options for folding panel partitions.
Finish material must be minimum [ 1371 mm 54 inches] [_____] wide, [vertically-ribbed acoustical material of
100 percent polyolefin] [Type II vinyl with a minimum total weight of [441 grams/square m 13 ounces/square yard
and 620 grams/linear m 20 ounces/linear yard] [_____] in accordance with CFFA-W-101-D, and conforming to ASTM D 751
and NFPA 286.] Provide [ vinyl containing a non-mercury based mildewcide and manufactured without the use of
cadmium-based stabilizers][acrylic backed fabric of [100 percent polyolefin] [_____]].[ Provide non-allergenic
stain and mildew resistant fabric which will not rot or support growth of bacteria].
2.2.3 Track
Provide recess [extruded aluminum] [enamel finish steel] track as shown.[ Aluminum must conform to [ASTM B 221
][ASTM B 221M].][ Steel must conform to ASTM A 653/A 653M.] Track must be manufacturer's standard product designed
for the weight of the finished partition, including door. Provide track sections in the maximum lengths practicable,
and not less than 1.8 m 6 feet long except for narrow doors and at ends of runs where short length is required.
Provide suitable joint devices such as interlocking keys at each joint to provide permanent alignment of track.
2.2.4 Suspension System
Provide a suspension system consisting of [steel][heavy duty extruded aluminum] track connected to the structural
support by threaded rods, and trolleys designed to support the weight of the partition.[ Provide steel track
of 5 mm 7 gage minimum, phosphate treated or painted.][ Provide extruded aluminum track with minimum thickness
of 3 mm 1/8 inch.] [Provide center hung panel with 1 trolley with four ball bearing nylon or steel tired wheels
per panel.] [Provide 2 trolleys per panel with 2 ball bearing polymer or steel tired wheels.]
[2.2.5 Tackboard
Provide tackboard with [steel][aluminum] frame. Provide minimum 6 mm 1/4 inch thickness , tacking surface covered
with self-sealing decorative vinyl. Tacking surfaces must be laminated to rigid backing substrate.
][2.2.6 Markerboards
Provide markerboards with [aluminum][steel] frame with writing surface of [cast acrylic plastic with color fused
to surface] [porcelain steel].Markerboard must not protrude more than 3 mm 1/8 inch beyond panel face. Color:
[white] [_____].
]2.3 ACCESSORIES
2.3.1 Doors
Provide non-fire rated, manually operated doors with vinyl sweep top seals which compress against the bottom
of the top track.
2.3.2 Ceiling Guards
Furnish partitions with ceiling guards or integral track and ceiling guards as recommended by the manufacturer.
2.3.3 Metal Soffit
Provide soffit when steel track is recessed. Provide metal soffit of adequate thickness to protect the ceiling
from damage by door operation and with the door manufacturer's standard neutral-color applied finish. Soffit
on aluminum track must be an integral part of the track
2.4 SEALS AND SWEEPSTRIPS
NOTE: Partitions need a floor and ceiling seal to avoid gaps that will lower
the advertised sound transmission rating. For any partition that requires a
sound rating, use seals and ceiling guards provided by the manufacturer of the
partition. Provide a baffle in the ceiling plenum above the partition with
a STC rating equal to the partition. Provide a floor surface that will allow
the bottom sweep to make a positive seal. Panels need vertical and end seals.
Provide perimeter seals or sound insulation, of manufacturer's standard product, to achieve the sound transmission
class specified [and to pass the visual field test specified], without crack or craze when subjected to severe
usage. [Provide mechanical seal top and bottom of the fire rated panel.] [Provide mechanical bottom seal that
can be raised or lowered for positive control.] Provide manufacturer's vertical seals between panels to ensure
acoustical [and fire] rating. Bottom seals must consist of a vinyl sweep mechanical seal which will expand in
place, or provide panels which can be lowered by a removable operating device. Vertical seal between panels
must be anodized, architectural grade, aluminum extrusion with [vinyl] [_____] sound seal. Sweep strips must
be vinyl or other material which will not crack or craze with severe usage. Sweep strip must provide STC to
the specified rating.
[2.5 ELECTRICAL OPERATORS
NOTE: Specify electrical operators for those partitions whose size and weight
preclude manual operation. Refer to manufacturers' literature. Indicate those
partitions requiring electrical operation on the project drawings. Delete this
paragraph when electrically operated partitions are not required in the project.
Provide manufacturer's recommended standard electrical operator for [each partition] [partitions indicated].
Provide wiring diagrams.
]2.6 PERFORMANCE REQUIREMENTS
2.6.1 Fire Endurance
NOTE: Select flame spread and smoke developed criteria to suit project.
For partitions more than 5.6 square meters 60 square feet in area, provide covering and lining with flame spread
rating of 25 or less, fuel contribution rating of 15 or less, smoke generation of 50 or less in accordance with
NFPA 101 when tested in accordance with ASTM E 84. [1 hour fire rating, UL 10B, or NFPA 252.] Submit flame
and smoke development tests reports. Door and partition finishes must have a Class A rating when tested in accordance
with ASTM E 84.
2.6.2 Laboratory Acoustical Requirements
NOTE: Specify sound transmission class as determined by project requirements.
The requested rating should be between 35 and 54 STC. 39 and 40 STC are widely
available. If more is required, another type of moveable partition should be
used. Specify a panel weight of no less than 14 kg per square meter (3 psf)
for STC of 35, 24 kg per square meter (5 psf) for STC of 45.
Provide partitions tested in accordance with ASTM E 90 by a laboratory accredited by the U.S. Bureau of Standards
and have attained a sound transmission class (STC) of not less than [39] [40] [_____] in a fully extended position,
with a Noise Reduction Coefficient (NRC) of [0.25-0.30 for napped, tufted or looped fabric] [0.65-0.75 for perforated
steel in accordance with ASTM C 423] [_____]. Partition tested must be of the same construction, materials,
and model number as the partition to be provided and be fully operable. Test specimen must be not less than
[12 square meters in area] [4200 by 2700 mm] [126 square feet in area] [14 feet by 9 feet]. Panel weight must
be a minimum of 26 kg/square meter 5.5 psf for STC up to 40, 36 kg/square meter 7.5 psf for STC up to 45, and
41 kg/ square meter 8.5 psf for STC up to 50, 48 kg/square meter 10.0 psf for STC up to 53. Panel thickness
(100 mm 4 inch nominal) and composition must be designed to provide the required STC rating in accordance with
ASTM E 90 and ASTM E 413.
2.7 COLOR
NOTE: Editing of color reference sentence(s) must be coordinated with the Government.
Generally the Section 09 06 90 Color Schedule or drawing is used when the project
is designed by an Architect or Interior designer. Color will be selected from
manufacturers standard colors or identified in this spec only when the project
has minimal finishes.
When the government directs that color be located in the drawings, add a Note
stating: "Where color is shown as being specific to one manufacturer, an equivalent
color by another manufacturer may be submitted for approval. Manufacturers
and materials specified are not intended to limit the selection of equal colors
from other manufacturers. The word "color" as used herein includes surface
color and pattern."
Prior to specifying a custom color finish, research to determine if additional
cost and lead time is feasible. Note there is often a minimum order requirement;
this requirement will also affect future orders.
When a manufacturer's name, stock number, pattern, and color is used, be certain
that the product conforms to this specification, as edited.
Color: [in accordance with Section 09 06 90 COLOR SCHEDULE] [as indicated on the drawings] [selected from manufacturers
standard colors] [_____].[ Color listed is not intended to limit selection of equal colors from other manufacturers].
PART 3 EXECUTION
3.1 INSTALLATION
Install in accordance with the manufacturer's approved instructions.
3.1.1 Preparation Work
NOTE: Show the structural support necessary to accommodate the size and weight
of the partition. ASTM E 557 has design as well as installation criteria.
Verify dimensions and condition of openings scheduled to receive folding panel partitions. Install partitions
in accordance with the approved partition layouts, manufacturer's directions, and ASTM E 557. Structural support
for the track support elements must be as indicated.
[3.1.2 Electrical Operators
NOTE: Delete this paragraph when electrically operated partitions are not required.
Conform electrical components and installation to the requirements of NFPA 70 and Section 26 20 00 INTERIOR DISTRIBUTION
SYSTEM. Provide the partition manufacturer's standard drive and control components required to operate the partition.
Power source is as indicated.
]3.1.3 Adjustment
[Adjust manually operated partitions to open and close from any position with a maximum horizontal force as specified
in paragraph Manual Operation applied to pendant pull, box or handle.] [Adjust drive components and limit switches
of electrically operated partitions to ensure the partitions operate properly upon activation of the control
switch.]
3.2 FIELD TESTS
3.2.1 Operational Test
In the presence of the Contracting Officer, operate partition at least three times to demonstrate that partition
is capable of being moved from the stored position to the fully extended position smoothly and quietly [and without
overloading the drive components]. Activate [the emergency release mechanism and demonstrate proper operation
of the partition in the manual mode] [mechanical seals top and bottom]. Adjust partitions which do not operate
properly and retest.
3.2.2 Visual Test
NOTE: Delete this paragraph when light leakage will not be objectionable.
Conduct visual field tests for light leakage with all room lights turned on in the space on one side of the partition.
Darken space on the other side of the partition. Light leakage from the lighted space to the darkened space
is not acceptable. If light leakage does occur, adjust the partition to correct the problem and retest.
3.2.3 Acoustical Test
NOTE: Delete this paragraph in projects requiring STC ratings of less than
40. Noise Isolation Class (NIC) is a number that can be measured, and usually
runs up to 10 points below laboratory results, i.e. lab STC 40, field NIC 30.
This test is expensive and rarely necessary.
Field sound performance: provide partition testing by an independent certified acoustical consultant in accordance
with ASTM E 336, and achieve a Noise Isolation Class (NIC) of [_____] plus or minus two. Adjust and/or modify
partitions which do not comply, and retest.
3.3 CLEANING
Clean any soiled parts of the partition in accordance with manufacturer's printed instructions.