������������������������ SECTION 10615

 

������������������� DEMOUNTABLE PARTITIONS

This section is based on the Forecast 200-G Movable Wall System manufactured and marketed by The Mills Company, headquartered at the following address:

 

6690 Beta Drive

Cleveland, Ohio 44143

Telephone:� 216/442‑2900

Fax:� 216/442‑2993.

 

The Forecast Wall System is an economical, non-progressive system comprised of 100 percent steel unitized panels which are 100 percent reusable.� It offers virtually unlimited design options, yet fully complies with Section 10620 of AIA's MASTERSPEC for unitized panel partitions.� In new or retrofit applications, the Forecast Wall System is easily managed and moved by in-house personnel.� The Mills Company guarantees product rematch and rework for the life of the building.

 

PART 1� GENERAL

 

1.1 SECTION INCLUDES

 

��� A.� Demountable Partition System, including:

Delete items below not required for project.

������� 1.� Solid wall panels.

������� 2.� Glazed wall panels.

������� 3.� Floor and ceiling channels.

������� 4.� Doors, frames, and hardware.

������� 5.� Adjustable wall end fillers.

������� 6.� Slotted support channels.

������� 7.� Base trim.

 

1.2 RELATED SECTIONS

Delete any sections below not relevant to this project; add others as required.� Include only sections that are relevant to the demountable partition work.

��� A.� Section 08710 - Finish Hardware.

 

��� B.� Division 16 Sections - Electrical Work.

 

1.3 REFERENCES

Delete references from the list below that are not actually required by the text of the edited section.

��� A.� ANSI/BIFMA X5.6 - Office Furnishings - Panel Systems - Tests.

 

��� B.� ASTM D 3363 - Test Method for Film Hardness by Pencil Test.

 

��� C.� ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.

 

��� D.� ASTM E 90 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions.

 

��� E.� UL 183 - Manufactured Wiring Systems.

 

1.4 SYSTEM DESCRIPTION

 

��� A.� Demountable Partition System:� All-steel, modular width panels with recessed vertical joints, complete vertical adjustment, telescoping end fillers, accessories and trim.

������� 1.� System design:� Non-progressive panel assembly, permitting extensions of 2-, 3-, and 4-way junctions without removing adjacent units and easy rearrangement with 100 percent re-usability of all parts.

������� 2.� Panel height:� Full-height to ceiling; _______ feet.

������� 3.� Panel widths:� As indicated on drawings.

 

Delete one of the following 2 paragraphs -- only one joint width should be used.

������� 4.� Vertical joint width:� 1/4 inch.

������� 5.� Vertical joint width:� Fine line.

������� 6.� Electrical: Provide an electrical raceway from floor to ceiling through each partition run.

������� 7.� Weight:� Each wall panel shall weigh no more than four pounds per square foot.

 

��� B.� Performance Requirements:

������� 1.� Sound control:� Meet or exceed 37 to 42 STC rating when tests are conducted under ASTM E 90, without field packing cavities.

������� 2.� Fire retardance of all components:� ASTM E 84 Class A; flame spread less than 10, smoke developed less than 10.� Toxicity reports shall be available upon request.

������� 3.� Load and endurance performance:� Comply with ANSI/BIFMA X5.6.

 

1.5 SUBMITTALS

 

��� A.� Submit under provisions of Section 01300.

 

��� B.� Product Data:� Manufacturer's catalog data and installation methods.

 

��� C.� Shop Drawings:� Show layout of panels including plan views and elevations.

 

��� D.� Selection Samples:� Complete range of color and pattern options.

 

��� E.� Verification Samples:� Manufacturer's finish and color samples, to verify ranges and types.

 

��� F.� Certificates and test reports.

 

1.6 QUALITY ASSURANCE

 

��� A.� Testing:� Test partition system to substantiate compliance with specified performance requirements.

������� 1.� Sound control:� Perform test without packing cavities in the field; provide test data obtained by a qualified independent testing agency.

������� 2.� Fire retardance:� Provide rating certificate of a nationally recognized testing and labeling service, such as Underwriters' Laboratories.

������� 3.� Load and endurance performance:� Provide test data obtained by a qualified independent testing agency.

 

��� B.� Obtain all components of partition system from one manufacturer.

 

��� C.� Installer Qualifications:� Minimum of five years experience on completed jobs of similar size and scope; qualified and certified by the manufacturer.

 

 

1.7 DELIVERY, STORAGE AND HANDLING

 

��� A.� Deliver prefinished materials to the project site in original, unopened cartons or other packaging materials necessary to protect finishes.

������� 1.� Label packages clearly with manufacturer's name and item description.

������� 2.� Store materials in such packaging until installation.

������� 3.� Store components in vertical position with adequate support to ensure flatness and to prevent damage to prefinished surfaces.

 

1.8 ENVIRONMENTAL REQUIREMENTS

 

��� A.� Do not deliver materials or begin work until building is enclosed with complete protection from outside weather and temperature within building is being maintained at a minimum of 60 degrees Fahrenheit.

 

��� B.� Do not subject components to temperature, moisture or humidity extremes.

 

1.9 WARRANTY

 

��� A.� Provide manufacturer's product rematch warranty for the life of the building.

Use the following article if extra panels for future use are to be included in the construction contract.� Coordinate the quantities with the different types of panels and connection pieces required.

1.10��� MAINTENANCE MATERIALS

 

��� A.� Extra Components:

������� 1.� Provide ______ extra panels of each type.

������� 2.� Provide ______ extra end filler panels.

������� 3.� Provide ______ extra doors and frames.

 

 

PART 2� PRODUCTS

 

2.1 MANUFACTURER

 

��� A.� Provide Forecast Movable Wall System manufactured by The Mills Company, Cleveland, OH.

 

2.2 MATERIALS

 

��� A.� Exposed Steel:� Cold rolled or galvaneal, commercial quality furniture stock, properly annealed and leveled to provide a smooth and defect-free surface.

 

��� B.� Finish on All Exposed Steel:� Baked-on prime and finish coats; alkyd-aminoplast enamel; resultant film hardness complying with ASTM D 3363 2H pencil hardness test.

Select one of the following 2 paragraphs.� If the color has been selected already, enter the color name in the blank.

������� 1.� Color:� __________

������� 2.� Color(s):� As selected by Architect from manufacturer's standard range.

 

��� C.� Fasteners for Connection to Floor, Ceiling, and Building Structure:� Concealed, non-destructive, non-marring.

 

2.3 PARTITION COMPONENTS

 

��� A. Ceiling channels:� 18 gage steel, recessed or flush with panel face sheet, engaged by top of panel units, holding panel tops rigid against lateral movement, and providing continuous light and sound seal at ceiling.

������� 1.� Height:� Approximately 2 inches.

������� 2.� Fasten securely to suspended ceiling using non-destructive fasteners.

 

��� B.� Floor Channels:� 18 gage steel, unitized, with vertical flanges 1‑5/8 inches high to permit overlap of base trim covers, and with welded-on inverted channel welded to support partition, provide continuous sound and light seal, and to prevent lateral movement of partition.

 

��� C.� End Fillers for Wall Connections:� 20 gage steel, telescopically adjustable to compensate for fixed wall irregularities of plus or minus 1" to 12".

������� 1.� Make end filler faces flush with adjacent panel faces.

������� 2.� Join to adjacent panels with standard vertical joint.

������� 3.� Fill with acoustical insulation before installation.

 

��� D.� All Panels (including door frames):

������� 1.� Provide 20 gage concealed inner roll formed lock channel mechanically locked to integral vertical formed edge of panel sheets and at each panel intersection.� Lock channels shall extend the full height of the partition completely concealed within panel.

������� 2.� Join panel units together by means of internal double cam.

������� 3.� Provide screw levelers for vertical panel adjustment.

 

��� E.� Solid Panel Units:� Flush steel sheet faced, factory assembled into complete units with a 20 gage roll formed concealed inner vertical.

������� 1.� Panel faces:� Stretcher level quality 20 gage furniture stock with edges formed and locked to inner vertical, reinforced with stiffeners secured to the panel sheet.

������� 2.� Fill with acoustical insulation.

������� 3.� Thickness:� 2‑5/16 inches (60 mm).

Delete all but one of the following finish types, unless more than one is included in the project.� If so, edit the text to indicate that more than one is used and indicate where each is located.

������� 4.� Face finish:� Fabric-backed heavy duty vinyl wall covering as selected by Architect.

������� 5.� Face finish:� Fabric as selected by Architect.

������� 6.� Face finish:� Enameled steel chalkboard; color: _______.

������� 7.� Face finish:� Stainless steel Type 304, No. 4 satin brushed finish.

������� 8.� Face finish:� Wood veneer wall covering; species:� _______.

������� 9.� Face finish:� 1/4 inch thick natural cork tackboard.

������� 10. Face finish:� Textured steel with baked enamel finish.

������� 11. Face finish:� ___________.

 

��� F.� Glazed Panel Units:��� Vertical mullions and top and bottom rails, factory assembled into complete units.

������� 1.� Horizontal rails:� One-piece.

������� 2.� Provision for glazing:� Provide recessed glazing groove; do not use top- or surface-applied glazing moldings or stops; do not use exposed screws.

������� 3.� Mullion width:� 2‑1/4 inches.

 

��� G.� Electrical Raceways:� Factory installed, conforming to UL 183.

 

��� H.� Slotted Support Channels for Accessories:� Compatible with major manufacturers' open plan furniture.

������� 1.� Cover with removable strip that hides slots.

������� 2.� Make provision for changing slots in the field.

 

��� I.� Base Trim:� 18 gage steel, nominal 4 inches high; flush, recessed or projecting with panel sheet, flat and continuous without plinths.

������� 1.� Make provision for base trim to be independently removable from either side of partition to permit lay-in electrical and communication wiring into empty raceway.

������� 2.� Make provision for base covers to be field modified for custom or continuous location access of data and power porting.

 

��� J.� Glazing:� All glazing factory installed; furnish glass to manufacturer for installation.

Delete all but one of the following 4 paragraphs.� Select one of the glass types, or enter another description of the glass required.� Insulated units would be used for nominal acoustical privacy.

������� 1.� Glass:� 6 mm clear fully tempered float glass, with safety glazing label.

������� 2.� Glass:� 6 mm obscure fully tempered 1 inch thick insulated units, with safety glazing label.

������� 3.� Glass:� Type(s) as indicated on drawings.

������� 4.� Glass:� __________.

������� 5.� Glazing strips:� PVC.

������� 6.� Do not use exposed screws or moldings to secure glazing.

Delete the following article entirely if no doors or door frames are incorporated into the partition system.

2.4 DOOR COMPONENTS

Select one of the following 3 types of doors.� If more than one type of door is used on the project edit the text to indicate that the subparagraphs apply to all types.

��� A.� Doors:� Partition manufacturer's standard hollow steel, with 18 gage faces and edges, reinforced for hardware, and filled with acoustical insulation.

������� 1.� Hinge and closer reinforcements:� 14 gage steel.

 

��� B.� Doors:� Partition manufacturer's standard solid particleboard core wood-veneer faced, with internal blocking for hardware.

 

��� C.� Doors:� Partition manufacturer's standard solid particleboard core high pressure plastic laminate faced, with internal blocking for hardware, and hardwood edges.

Retain the following 2 paragraphs for any type of door included.

������� 1.� Thickness:� 1-3/4 inches.

������� 2.� Clearances:� 1/8 inch at jambs and head.

Delete the following paragraph if no glazed lights are included.

������� 3.� Glazed lights:� Use safety glazing for lights over 9 inches in any dimension.� Secure glazing without the use of screws or surface applied moldings.

 

��� D.� Door Frames:� One-piece, welded 18 gage steel with continuous side and head jamb strike and resilient sound seals.

������� 1.� Height:� Full height of the partitions with adjustable screw leveler and telescoping channel to accommodate changes in the ceiling height without field cutting.

������� 2.� Anchors:� Anchor frames to the floor using jamb plates which are fastened to the adjacent floor channel.

������� 3.� Make provision for an electrical light switch in each door jamb; see drawings or Division 16 for type of switch required.

When doors are included in the partition system, and the partition installer is going to install them, the door hardware section in Division 8 must cover the hardware for these doors.

��� E.� Door Hardware:� See Section 08710 - Door Hardware.

 

 

PART 3� EXECUTION

 

3.1 EXAMINATION

 

��� A.� Before installation, examine the site to insure that no defects or conditions exist which would result in an unsatisfactory installation of the partitions.

 

��� B.� Take field measurements at this time to ensure correct installation.

 

3.2 INSTALLATION

 

��� A.� Install partitions after floor coverings and acoustical ceilings have been installed.

 

��� B.� Anchor partitions to floor and ceiling using concealed non-destructive fastening devices.

 

��� C.� Install partitions rigid, level, plumb and straight in alignment with other components, in accordance with manufacturer's instructions.

 

��� D.� Leave partitions complete, clean and free from defects in workmanship.

Delete the following 2 paragraphs if no doors or door frames are included.

��� E.� Install door frames, doors, and door hardware.

 

��� F.� Thoroughly adjust and lubricate doors and hardware for proper working condition.

 

3.3 CLEANING

 

��� A.� Remove all rubbish generated by installer and leave the area broom clean.

 

 

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