USACE / NAVFAC / AFCESA / NASA UFGS-10 22 26.13 (October 2007)
-------------------------------
Preparing Activity: NAVFAC Superseding
UFGS-10 22 26.13 (April 2006)
UFGS-10 22 26.13 40 (October 2006)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 10 22 26.13
ACCORDION FOLDING PARTITIONS
10/07
NOTE: This guide specification covers the requirements for accordion folding
partitions, manually and/or electrically operated.
Accordion partitions are folding partitions with independent covers enclosing
a dead-air space and separated by an internal mechanism operating laterally
across the face of the opening to a stack or closed position. Do not confuse
accordion partitions with serpentine folding partitions which contain no internal
operating mechanism or dead-air space between independent covers.
Folding partitions may be a sight barrier (noninsulated), or sound barrier (with
sound liner), or both. Accordion-folding partitions have fabric covers which
are joined to reflect a pantographic movement of the door surfaces when the
door is either manually or electrically operated.
This section does not include folding or operable walls and partitions whose
rigid panels are individually moved or hinged along their vertical edges to
fold in serpentine fashion.
Associated work found in other sections includes:
Steel supporting members or hanger rods, Section[ Section 05 50 13 MISCELLANEOUS
METAL FABRICATIONS][ Section 05 51 33 METAL LADDERS][ Section 05 52 00 METAL
RAILINGS][ Section 05 51 00 METAL STAIRS].
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, Division 16, "Electrical."
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable item(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).
NOTE: The following information should be shown on the drawings:
1. Location, size, and folding area of accordion 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 partitions by type, sizes, and stack space and identified
by mark number or letter
5. For electrically operated partitions, show power source and desired switch
location.
PART 1 GENERAL
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 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 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.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] The following shall
be submitted 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
Submit Fabrication Drawings for Accordion Folding Partitions consisting of fabrication and
assembly details to be performed in the factory.
Submit Installation Drawings for the following items in accordance with paragraph entitled,
"Installation," of this section.
Accordion Folding Partition Layouts[; G][; G, [_____]]
Suspension System[; G][; G, [_____]]
Finish Hardware[; G][; G, [_____]]
Jamb Panels[; G][; G, [_____]]
Accessories[; G][; G, [_____]]
[Electrical Operators[; G][; G, [_____]]]
[Wiring diagrams[; G][; G, [_____]]]
Submit drawings for the system that include dimensions and weight of stacked partition, layout
of the work including stacking area, track and jamb fastening methods, seal details, and installation
details. [Submit wiring diagram and installation details for electrical operator.]
SD-03 Product Data
Framework
Suspension system
Finish Hardware
Sound Seals and Sweepstrips
Covering
Ceiling Guard
Meeting Posts
Jamb Panels
Rolling Post
Pull-In Latch
[Electrical Operator]
[Switches]
SD-04 Samples
Covering[; G][; G, [_____]]
SD-06 Test Reports
Laboratory Acoustical Requirements
Acoustical test
SD-07 Certificates
Submit Certificates to the Contracting Officer for this installation clearly indicating:
Statement of Code Compliance[; G][; G, [_____]]
Statement of Standards Conformity[; G][; G, [_____]]
SD-10 Operation and Maintenance Data
Folding partitions, Data Package 1; [; G][; G, [_____]]
[Electrical operators, Data Package 5; [; G][; G, [_____]]]
Submit in accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA.
SD-11 Closeout Submittals
Manufacturer's Guarantee
1.3 PRE-INSTALLATION REQUIREMENTS
1.3.1 Preconstruction Requirements
No less than 30 calendar days prior to the scheduled commencement of installation of Accordion Folding 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 Measurementsand Existing Electrical Data
Fabrication Drawings and Installation Drawings
1.3.2 Product Data
Submit the following information for review:
Finish Hardware
Jamb Panels and Accessories
Sound Seals and Sweepstrips
Ceiling Guard, Meeting Posts, Rolling Post
Pull-In Latch
[Electrical Operator and Switches]
1.3.3 Manufacturer's Guarantee
Provide Manufacturer's Guarantee for partitions against defects in material and workmanship for a period of two
years from date of installation. In addition, provide ten year guarantee for the pantographs, trolleys and tracks
from date of acceptance for beneficial use.
1.4 DELIVERY, HANDLING AND STORAGE
Deliver materials to project site in manufacturer's original, unopened, and undamaged packages with labels legible
and intact. Labels must indicate the manufacturer, brand name, size, finish, and placement location. Store
folding partitions and accessories in unopened packages in a manner that will prevent damage. Handle partition
materials in accordance with manufacturer's instructions.
PART 2 PRODUCTS
2.1 FOLDING PARTITIONS
Provide full accordion type partitions, factory finished, supported from overhead track without floor guides,
and complete with all hardware, track, and accessories necessary for operation. Provide partition framework
with a mechanism that gives stability and maintains uniform spacing of partition folds in all partition positions.
Provide completely concealed framework with a [vinyl-coated fabric covering][_____]. Provide partitions [manually]
[and] [electrically] operated, [bi-parting] [and] [one-way] type as indicated. Provide patterns and colors of
[fabric][_____] [approved by the Contracting Officer] [as indicated ]. [Provide manufacturer's standard pendant
pull on leading edge of manually operated partitions over 3600 mm 12 feet high.]
2.2 MATERIALS
2.2.1 Aluminum Extrusions
ASTM B 221MASTM B 221, Alloy 3003.
2.2.2 Steel Sheets
ASTM A 653/A 653M, [Z 180G90 coating designation].
2.2.3 Fabric Covering
NOTE: Specify minimum total weight and minimum coating weight for the fabric
covering type selected using the listing below:
Total Weight (kilograms per square meter): Type I - 0.237; Type II - 0.442;
Type III - 0.748
Coating Weight (kilograms per square meter): Type I - 0.170; Type II - 0.237;
Type III - 0.407Total Weight (ounces per square yard): Type I - 7; Type II
- 13; Type III - 22
Coating Weight (ounces per square yard): Type I - 5; Type II - 7; Type III
- 12
CFFA-W-101-D, Type II.
2.2.4 Seals and Sweepstrips
NOTE: Accordion 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.
Provide perimeter seals of manufacturer's standard product, without crack or craze when subjected to severe usage.
2.2.5 Ceiling Guards
Furnish partitions with ceiling guards or integral track and ceiling guards as recommended by the manufacturer.
2.3 PERFORMANCE REQUIREMENTS
2.3.1 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 fabric and lining with flame spread
rating of 25 or less, fuel contribution rating of 15 or less, smoke generation of 50 or less when tested in accordance
with ASTM E 84. Complete assembly must also meet or surpass the requirements of NFPA 101 and UL 10B.
2.3.2 Laboratory Acoustical Requirements
NOTE: Specify sound transmission class as determined by project requirements.
The requested rating should be between 35 and 45 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 certificates verifying folding partitions have been tested in accordance with ASTM C 423 and 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 [40] [_____] in a fully extended position. 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 [14] [24] kg per square meter [3] [5] lbs per square ft.
[2.4 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.
]2.5 FABRICATION
2.5.1 Framework
Fabricate framework, including posts, pantographs, hinges, hinge plates, and rods from either extruded aluminum
or ferrous metal. Arrange frames requiring pantographs for horizontal pantograph action with pantographs located
at top and bottom of the frame. Provide pantographs spaced not over 1200 mm 4 feet apart. Provide intermediate
pantograph at center of doors less than 2400 mm 8 feet high unless the door has vertical metal reinforcing.
The pantographs must operate smoothly with positive folding action and have a control device to prevent flattening
of the folds when the panel is fully extended. Ferrous metal must be either cadmium plated or zinc coated.Posts,
at the option of the door manufacturer, may have phosphate treatment and manufacturer's shop finish paint.
2.5.2 Suspension System
Provide a suspension system consisting of steel or aluminum track and trolleys designed to support the weight
of the partition. Provide steel track of 1.5 mm 16 gage minimum, phosphate treated and finished, or zinc or cadmium
coated. Provide extruded aluminum track with minimum thickness of 3 mm 1/8 inch. Tracks may have an integral
ceiling guard. Trolleys must have at least two ball bearing nylon or steel tired wheels spaced according to
manufacturer's design criteria and four at an end post.
2.5.3 Covering
Covering fabrics must conform to the requirements of ASTM D 751 and NFPA 286.
Attach fabric to the framework with fasteners that permit easy removal of the cover but prevent sagging or separation.
Position vertical seams in the bottoms of valleys and reinforce. Provide top and bottom edges of cover fabrics
with 12 mm 1/2 inch minimum turned hems.
2.5.4 Sound Insulation
Provide sound insulation as necessary to achieve the specified sound transmission mission class, conforming to
ASTM E 413.
2.5.5 Air Release
Provide an air release system which allows trapped air within the partition to be released during the stacking
process.
2.5.6 Seals
Provide perimeter seals as necessary to produce the sound transmission class specified [and to pass the visual
field test specified].
2.5.7 Hardware
Provide hardware of the heavy-duty type standard with the manufacturer. Provide pulls and latches for all partitions.
Provide partitions with [keyed locks] [privacy latches] [magnetic contact latches] [foot bolts].
2.5.8 Accessories
Provide [multiple meeting posts] [rolling posts] [switches] [ceiling guards] [recessed tracks] [curved tracks]
as indicated.
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Existing 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.
Check openings scheduled to receive accordion-folding partitions for correct dimensions.
Install partitions in accordance with the approved Accordion Folding Partition Layouts, manufacturer's directions,
and ASTM E 557. Provide structural support for the track support elements as indicated.
Submit to the Contracting Officer a certification of the following:
Statement of Code Compliance for the completed partition installation.
Statement of Standards Conformity
[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. Provide the partition manufacturer's
standard drive and control components required to operate the partition properly. 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 of 130
N 30 pounds 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
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.]
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 measured, and usually
runs up to 10 points below laboratory results, i.e. lab STC 40, field NIC 30.
This test is 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 according to manufacturer's instructions.
3.4 SUPPORT SERVICE
Equipment and component maintenance must be supported by a service organization which is reasonably convenient
to the site of installation.