Att 02_Specifications_260929.pdf

MARK TWAIN NATIONAL FOREST

SECTION 011000 - SUMMARY

PART 1 – GENERAL

1.1 SUMMARY OF WORK

A. Project: Doniphan and Salem Drop Ceiling Tiles

B. Owner : USDA Forest Service, Mark Twain National Forest

C. Location:

1. Salem Ranger District Office

a. 1301 S Main St, Salem, MO 65560

2. Eleven Point Ranger District Office/ Doniphan Office

a. 66 Confederate Ridge Rd, Doniphan, MO 63935

D. The Contractor shall furnish and install all material, provide all necessary equipment, tools, supervision, provide any services, provide operation and maintenance manuals as required; and any incidentals necessary to perform the work specified below.

Superintendent for prime contractor shall be on site at all times as work is completed if subcontracted. Daily report with pictures to be submitted to COR at end of each day.

Work includes but is not limited to:

Base Bid Items:

BBI-1: Salem Office- Main Floor Demo and Install

a. Removal, disposal, and clean-up of existing acoustic ceiling tiles on the main floor of the Salem Ranger District Office.

• Includes, all offices, open office space, hallways, stair well area, front lobby area and break room, and any other like spaces. Roughly 3300 SF.

• Includes men and woman bathrooms.

b. Furnish and install all new surface mounted ceiling tile track system and acoustic ceiling tiles. Install wood trim like existing after new installtion.

c. All light fixtures must be secured to joists or furring strips to hold the weight. Never just the ceiling tile.

d. Government will move furniture/cabinets before installation.

Provide two week lead-time prior to contractor’s arrival to ensure areas are cleaned out.

e. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace. Provide option with bid with technical approach.

BBI – 2: Salem Office- Basement Demo and Install

a. Removal, disposal, and clean-up of existing acoustic ceiling tiles in basement of the Salem Ranger District Office.

b. Furnish and install all new surface mounted ceiling tile track system and acoustic ceiling tiles. Area roughly 732 SF. Install wood trim like existing after new installation.

c. Government will move furniture/cabinets before installation.

Provide two week lead-time prior to contractor’s arrival to ensure areas are cleaned out.

d. All light fixtures must be secured to joists or furring strips to hold the weight. Never just the ceiling tile.

e. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace. Provide option with bid with technical approach.

BBI – 3: Doniphan Ceiling Tile Installment

a. Installation of new suspended track system and ceiling tile, along with any additional framing if needed.

• Keith Holland’s Office: Fire rated acoustic ceiling tiles, due to mechanical room features. Area is roughly 165 SF.

• Small Conference room: Area about 106 SF.

• Hallway to Boiler Room: Area about 85 SF.

b. Install braceing/furring strips as needed around MEP/Light fixtures/duct work to install drop ceiling according to manufacturer's standards.

c. Government will move furniture/cabinets before installation.

Provide two week lead-time prior to contractor’s arrival to ensure areas are cleaned out.

d. All light fixtures must be secured to joists or furring strips to hold the weight. Never just the ceiling tile.

NOTE 1: All building dimensions listed are approximate. Contractor is responsible for confirming actual building dimensions.

NOTE 2: All items not specifically mentioned in the Contract Documents necessary to complete the specified work shall be incidental to the cost of the project.

1.2 WORK RESTRICTIONS

A. Contractor's Use of Premises: During construction, Contractor will have limited use of the buildings and shall not cause undo interference with normal work operations while working on the siding replacements. Contractor's use of premises is limited to performance of work, and as follows:

1. Perform construction during normal working hours (7 AM to 4:30 PM Monday thru Friday, other than holidays and weekends), unless otherwise agreed to in advance by the COR. Clean up work areas and return to a useable condition at the end of each workday.

2. Driveways, Walkways, and Entrances: Keep driveways, parking garage, loading areas, and entrances serving premises clear and available to Owner, Owner's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

B. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

C. Commercial electric power, potable water, and restrooms are available at the site.

1.3 SAFETY

A. Contractor shall comply with all State and Federal safety regulations during the performance of the work.

1.4 STORAGE

A. The Contractor shall be responsible for all materials and equipment stored on the project site. Locations for the Contractor’s storage areas shall be subject to prior approval by the COR.

1.5 CLEANUP

A. All refuse, including garbage, rubbish, construction refuse, unused materials, and wastes from the Contractor’s operations, shall be the property of the Contractor and shall be removed from Forest Service property.

B. At the end of each workday, the Contractor shall cleanup the construction area. All debris shall be either placed in a construction dumpster or removed from the construction site. In addition, all pavement areas and sidewalks shall be swept clean of all debris and dust. No construction debris shall be placed in the government dumpster located on project site.

C. Before leaving the site on Fridays a more complete policing, pick up and securing of the Site shall be performed. The Site shall be left in a neat and orderly manner as determined by the COR with public protected from construction related hazards.

1.6 INSPECTION OF WORKSITE

A. Inspection shall be made by the COR, or his/her inspector. Inspections shall be made as often as necessary to ensure the work is being performed in a neat, workmanlike manner. A final inspection shall be made upon completion of the job. Final acceptance shall be based upon compliance with the contract specifications.

1.7 FIELD VERIFICATION

A. Contractor shall field verify all new and existing dimensions affecting the work of this contract before ordering products.

B. The contractor acknowledges they have taken the necessary steps to ascertain the nature and location of work and have investigated and satisfied themselves as to the general and local conditions that can affect the work or its cost. Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

1.8 DISPOSAL OF MATRIAL

A. Contractor shall remove and dispose of all debris offsite, including materials removed from building.

1.9 MEASUREMENT AND PAYMENT

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. Measurement and payment for work or materials required to complete the project and which are not included as pay items on the Schedule of Items will be considered as incidental to and included in the payment for other pay items shown and separate measurement and payment therefore will not be made.

1.10 ABBREVIATIONS AND TERMS

1. The following abbreviations and terms may be used in the contract documents:

a) COR (Contracting Officer’s Representative)

b) CO (Contracting Officer)

c) Owner (Government/Forest Service)

d) USDA (United States Department of Agriculture)

1.11 CONTRACT TIME

A. Base: 30 Calendar Days

END OF SECTION 011000

SECTION 013300 - SUBMITTAL PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other miscellaneous submittals.

See Table 013300-1 for a summary of required submittals.

B. See other specification sections within this package for additional requirements on submittals.

1.2 PROJECT MANAGEMENT AND COORDINATION

A. Coordinate construction to ensure efficient and orderly installation of each part of the Work.

1.3 SUBMITTAL PROCEDURES

A. Coordinate each submittal with fabrications, purchasing, testing, delivery, other submittals, and related activities that require sequential activity.

1. No extensions of the Contact Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing., including resubmittals.

2. Email submittals to COR.

3. Highlight chosen/selected products to be reviewed.

B. Identify deviation from the Contract Documents on submittals.

PART 2 - PRODUCTS

2.1 ACTION SUBMITTALS

A. Product Data: Mark each copy to show applicable products and options. Include the following:

1. Manufacturer's written recommendations, product specifications, and installation instructions.

2. Printed performance curves and operational range diagrams. Testing by recognized testing agency.

3. Compliance with specified standards and requirements.

ACOUSTICAL TILE CEILINGS 095123 - 1

SECTION 095123 - ACOUSTICAL TILE CEILINGS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Acoustical tiles

B. Metal suspension system.

C. PVC surface mounted grid system

1.2 SUBMITTALS

A. Product Data: For each type of product.

B. Maintenance data.

C. Ceiling Plan

D. Warranty documents

PART 2 - PRODUCTS

2.1 ACOUSTICAL TILES

A. Acoustic Units:

1. Doniphan Office – Armstrong “Tundra” or approved equal.

a. Beveled Tegular 15/16".

2. Salem Office - Armstrong “Fine Fissured” or approved equal.

a. Flat/Standard Square Lay-In 15/16"

B. Color: White

C. Noise Reduction Coefficient (NRC): Not less than 0.55

D. Ceiling Attenuation Class (CAC): Not less than 30

E. Thickness: 5/8”

2.2 GRID SYSTEM(S)

A. Direct-Hung Suspension System (Doniphan Office) ; ASTM C 635, heavy-duty structural classification. Color: White

1. Products:

ACOUSTICAL TILE CEILINGS 095123 - 2

a. Armstrong “Prelude XL Exposed Tee -Heavy Duty” or approved equal.

1) Attachment Devices: Size for 5 times the design load indicated in ASTM C

635 Table 1, Direct Hung, unless otherwise indicated.

2) Wire Hangers. Braces, and Ties: Zinc-coated carbon-steel wire; ASTM A

641/Class 1 zinc coating, soft temper.

3) Seismic Struts: Manufacture’s standard product designed to accommodate seismic forces.

4) 2’x2’, provide ceiling plan for approval prior to installation.

5) 30 year limited ceiling systems warranty

B. Direct-Mount (Salem Office):

1. Products:

a. Metal Direct-mount grid system with max of 2" hang total if possible.

b. Will consider “CeilingMAX PVC Grid System” or approved equal. If metal option is not found sufficient. Need for maximizing headspace.

1) Color: White

2) 2’x2’, provide ceiling plan for approval prior to installation.

3) Must support and work with necessary MEP penetrations.

4) 10 yr limited warranty

c. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace.

C. Accessories:

1. Perimeter Moldings: Same materials and finish as grid.

PART 3 - EXECUTION

3.1 PREPARATION

A. Measure each ceiling area and establish layout of acoustical tiles to balance border widths at opposite edges of each ceiling. Avoid using less-than-half-width tiles at borders unless otherwise indicated.

B. Layout openings for penetrations centered on the penetrating items.

3.2 INSTALLATION OF SUSPENSION SYSTEM

A. Install suspended acoustical tile ceilings in accordance with ASTM C636/C636M and manufacturer's written instructions and as supplemented in this section.

B. Lay out system to a balanced grid design with edge units no less than 50 percent of acoustical unit size.

C. Hang suspension system independent of walls, columns, ducts, pipes and conduit. Where carrying members are spliced, avoid visible displacement of face plane of adjacent members.

D. Where ducts or other equipment prevent the regular spacing of hangers. Reinforce the nearest affected hangers and related carrying channels to span the extra distance.

ACOUSTICAL TILE CEILINGS 095123 - 3

E. Support fixture loads using supplementary hangers located within 6 inches or each corner, or support components independently.

F. Install edge moldings and trim of type indicated at perimeter of acoustical ceiling area and where necessary to conceal edges of acoustical tiles.

1. Apply acoustical sealant in a continuous ribbon concealed on back of vertical legs of moldings before they are installed.

2. Do not use exposed fasteners, including pop rivets, on moldings and trim.

G. Ensure level installation with maximum 1/8 inch deviation in 12 feet.

H. Arrange directionally patterned acoustical tiles as indicated on reflected ceiling plans.

I. Coordinate ceiling installation with all MEP trades prior to placing any tiles.

J. Ensure all grid openings properly match device sizes and layouts.

K. Direct-Mount:

1. Establish centerline layout and fasten perimeter wall channels to studs.

2. Install main tees directly to substrate using approved direct-mount clips.

3. Insert cross-tees into main tees until audible click is heard, confirming full engagement.

4. Shim clips as necessary to maintain level grid when substrate is uneven.

5. Ensure tiles fit within limited clearance typical of direct-mount systems.

3.3 INSTALLATION OF ACOUSTICAL UNITS

A. Install acoustical units in accordance with manufacturer's instructions.

B. Fit acoustical units in place, free from damage edges or other defects detrimental to appearance and function.

C. Fit border trim neatly against abutting surfaces. Reinstall salvaged ceiling trim. Install new trim where is missing.

D. Install acoustical units level, in uniform plane, and free from twist, warp, and dents.

E. Cutting Acoustical Units:

1. Make field cut edges of same profile as factory edges and field paint.

END OF SECTION 095123

B. Substitutions – Whenever materials, products, and equipment are listed by name or brand in the specifications and/or on the drawings, it is used as a measure of quality, utility, or standard. If the Contractor prefers to use any other brand or manufacturer of same quality, appearance and utility to that specified, he shall request substitution as provided below. The COR will approve or disapprove the request for substitution.

C. Samples: Submit Samples for each element of construction for review of kind, color, pattern, and texture and for a comparison of these characteristics between submittal and actual component as delivered and installed. Include name of manufacturer and product name on label.

2.2 INFORMATIONAL SUBMITTALS

A. Product Certificates: Prepare written statements on manufacturer's letterhead certifying that product complies with requirements in the Contract Documents.

1. Test and Inspection Reports: Comply with requirements in Section 014100

"Quality Control."

2.3 CONTRACTOR’S CONSTRUCTION SCHEUDLE

A. Submit a comprehensive, fully developed schedule within 5 days of date of the Notice to Proceed.

B. Preparation: Indicate each significant construction activity and the location within building separately. Identify first workday of each week.

PART 3 - EXECUTION

3.1 SUBMITTAL REVIEW

A. Review each submittal and check for coordination with other Work of the Contract and for compliance with the Contract Documents. Note corrections and field dimensions.

B. COR will review each action submittal, make marks to indicate corrections or modifications required, stamp and mark as appropriate to indicate action taken, and return copies less those retained.

3.2 CONTRACTOR'S CONSTRUCTION SCHEDULE

A. Distribute copies of approved schedule to COR, subcontractors, and parties identified by Contractor with a need-to-know schedule responsibility. When revisions are made, distribute updated schedules to the same parties.

B. Updating: At weekly intervals, update schedule to reflect actual construction progress and activities. Issue revised schedule at each regularly scheduled progress meeting.

1. As the Work progresses, indicate Actual Completion percentage for each activity.

3.3 SUBMITTAL SCHEDULE – Submittals shall be made as required by and called for in the drawings and specifications. The following table is a summary of the required submittals for the project. The table is intended to assist the Contractor and may not be all inclusive. Additional submittals may be required by specific specifications:

TABLE 013300-1

Spec. Section Subsection Required Submittal

013300 2.3 Construction Schedule

095123 2.2 Drop Ceiling Grid system (Product Data, Warranty)

095123 2.1 Drop Ceiling Acoustic Tiles (Product Data, ,Warranty, Manufacturer’s recommended installation instructions)

END OF SECTION 013300

SECTION 024119 - SELECTIVE STRUCTURE DEMOLITION

PART 1 - GENERAL

1.1 SECTION REQUIREMENTS

A. Comply with EPA regulations and hauling and disposal regulations of authorities having jurisdiction.

B. The government will occupy building during demolition. Conduct selective demolition so government operations will not be disrupted.

C. It is not expected that hazardous materials will be encountered in the Work. If materials suspected of containing hazardous materials are encountered, do not disturb;

immediately notify COR. Owner will remove hazardous materials under a separate contract.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1 DEMOLITION

A. Maintain services/systems and protect them against damage during selective demolition operations. Before proceeding with demolition, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of the building.

B. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

C. Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain or construction being demolished.

D. Provide temporary weather protection to prevent water leakage and damage to structure and interior areas.

E. Protect walls, ceilings, floors, and other existing finish work that are to remain. Erect and maintain dustproof partitions. Cover and protect furniture, furnishings, and equipment that have not been removed.

F. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

G. Promptly remove demolished materials from government property and legally dispose of them. Do not burn demolished materials.

END OF SECTION 024119

ACOUSTICAL TILE CEILINGS 095123 - 1

SECTION 095123 - ACOUSTICAL TILE CEILINGS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Acoustical tiles

B. Metal suspension system.

C. PVC surface mounted grid system

1.2 SUBMITTALS

A. Product Data: For each type of product.

B. Maintenance data.

C. Ceiling Plan

D. Warranty documents

PART 2 - PRODUCTS

2.1 ACOUSTICAL TILES

A. Acoustic Units:

1. Doniphan Office – Armstrong “Tundra” or approved equal.

a. Beveled Tegular 15/16".

2. Salem Office - Armstrong “Fine Fissured” or approved equal.

a. Flat/Standard Square Lay-In 15/16"

B. Color: White

C. Noise Reduction Coefficient (NRC): Not less than 0.55

D. Ceiling Attenuation Class (CAC): Not less than 30

E. Thickness: 5/8”

2.2 GRID SYSTEM(S)

A. Direct-Hung Suspension System (Doniphan Office) ; ASTM C 635, heavy-duty structural classification. Color: White

1. Products:

ACOUSTICAL TILE CEILINGS 095123 - 2

a. Armstrong “Prelude XL Exposed Tee -Heavy Duty” or approved equal.

1) Attachment Devices: Size for 5 times the design load indicated in ASTM C

635 Table 1, Direct Hung, unless otherwise indicated.

2) Wire Hangers. Braces, and Ties: Zinc-coated carbon-steel wire; ASTM A

641/Class 1 zinc coating, soft temper.

3) Seismic Struts: Manufacture’s standard product designed to accommodate seismic forces.

4) 2’x2’, provide ceiling plan for approval prior to installation.

5) 30 year limited ceiling systems warranty

B. Direct-Mount (Salem Office):

1. Products:

a. “CeilingMAX PVC Grid System” or approved equal. Need for maximizing headspace.

1) Color: White

2) 2’x2’, provide ceiling plan for approval prior to installation.

3) Must support and work with necessary MEP penetrations.

4) 10 yr limited warranty

b. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace.

C. Accessories:

1. Perimeter Moldings: Same materials and finish as grid.

PART 3 - EXECUTION

3.1 PREPARATION

A. Measure each ceiling area and establish layout of acoustical tiles to balance border widths at opposite edges of each ceiling. Avoid using less-than-half-width tiles at borders unless otherwise indicated.

B. Layout openings for penetrations centered on the penetrating items.

3.2 INSTALLATION OF SUSPENSION SYSTEM

A. Install suspended acoustical tile ceilings in accordance with ASTM C636/C636M and manufacturer's written instructions and as supplemented in this section.

B. Lay out system to a balanced grid design with edge units no less than 50 percent of acoustical unit size.

C. Hang suspension system independent of walls, columns, ducts, pipes and conduit. Where carrying members are spliced, avoid visible displacement of face plane of adjacent members.

D. Where ducts or other equipment prevent the regular spacing of hangers. Reinforce the nearest affected hangers and related carrying channels to span the extra distance.

ACOUSTICAL TILE CEILINGS 095123 - 3

E. Support fixture loads using supplementary hangers located within 6 inches or each corner, or support components independently.

F. Install edge moldings and trim of type indicated at perimeter of acoustical ceiling area and where necessary to conceal edges of acoustical tiles.

1. Apply acoustical sealant in a continuous ribbon concealed on back of vertical legs of moldings before they are installed.

2. Do not use exposed fasteners, including pop rivets, on moldings and trim.

G. Ensure level installation with maximum 1/8 inch deviation in 12 feet.

H. Arrange directionally patterned acoustical tiles as indicated on reflected ceiling plans.

I. Coordinate ceiling installation with all MEP trades prior to placing any tiles.

J. Ensure all grid openings properly match device sizes and layouts.

K. Direct-Mount:

1. Establish centerline layout and fasten perimeter wall channels to studs.

2. Install main tees directly to substrate using approved direct-mount clips.

3. Insert cross-tees into main tees until audible click is heard, confirming full engagement.

4. Shim clips as necessary to maintain level grid when substrate is uneven.

5. Ensure tiles fit within limited clearance typical of direct-mount systems.

3.3 INSTALLATION OF ACOUSTICAL UNITS

A. Install acoustical units in accordance with manufacturer's instructions.

B. Fit acoustical units in place, free from damage edges or other defects detrimental to appearance and function.

C. Fit border trim neatly against abutting surfaces. Reinstall salvaged ceiling trim. Install new trim where is missing.

D. Install acoustical units level, in uniform plane, and free from twist, warp, and dents.

E. Cutting Acoustical Units:

1. Make field cut edges of same profile as factory edges and field paint.

END OF SECTION 095123

Doniphan Office:

Figure 1 Ceiling - Hallway to Boiler Room

Figure 2 Ceiling - Keith Holland's Office

Figure 3 Ceiling - Small Conference Room

Salem Main Floor:

Salem Basement:

b. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace.

b. If grid system does not work with selected ceiling tile, inform COR and provide shortest possible drop ceiling suspensions system hangers to maximize headspace.