Section_J_-_Att_No__001_SOW.pdf

SAN FRANCISCO MARITIME NATIONAL

HISTORICAL PARK

AQUATIC PARK BATHHOUSE

REPLACE CEILING TILES

SAFR PMIS NO. 254817

SCOPE OF WORK

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

March 1, 2022

RFQ 140P8622Q0028

Section J - Att No. 001

This page intentionally left blank.

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

011100 Summary of Work 012700 Definition of Contract Line Items…………………………………………………… 013523 Safety Requirements 02070 Protection of Building Fabric and Environment ……………………………………

DIVISION 09 – FINISHES

095100 Acoustic Ceiling Tiles

DRAWINGS

A13 – Third Floor Reflected Ceiling Plan A14 – Ceiling Tile Grid Control Plan

PHOTOGRAPHS

APPENDECIES

Asbestos-Containing Materials Report (partial) – Non-ACM Detail Page 1 of 50; Building 74876 – Homogeneous Material SAFR 74876-009

SECTION 011100 SUMMARY OF WORK

Replace Bathhouse 3rd Floor Ceiling 011100-1

PART 1-GENERAL

1.1 DESCRIPTION:

The Aquatic Park Bathhouse Building, also known as the Maritime Museum Building and the Sala Burton Building, is a major component of the Aquatic Park National Historic Landmark District and is known for its unique integration of interior architectural elements and full height interior wall murals. The murals are considered nationally significant works of art.

The third floor is a large, single room with a coffered ceiling comprised of large plaster beams and acoustic ceiling tiles. The space is approximately 115 feet long by 40 feet wide. There are light fixtures and exit signs mounted to the ceiling tile areas of the ceiling and various conduit and fire/security devices mounted to the plaster beams.

1.2 LOCATION:

The Aquatic Park Bathhouse Building is located at 900 Beach Street in the San Francisco Maritime National Historical Park in San Francisco, California.

1.3 SCOPE OF WORK:

A. Ceiling: removal of existing adhered ceiling tiles, removal of existing adhesive on plaster substrate, preparation of the plaster substrate for new adhesive, and installation of new adhered acoustic ceiling tiles.

B. The scope includes removal of light fixtures, exits signs and other equipment/fixture components as required for ceiling removal/installation, and the reinstallation of such fixtures or components.

C. The work also includes measures to protect the art murals from contact, overpaint or any damage. Removal of such measures, with out damage to the art murals is part of this scope.

1.4 EXISTING CONDITIONS

A. Contractor's examination of the site:

1. A pre-bid site visit will be scheduled during the solicitation phase.

2. All bidders are encouraged to attend the pre-bid site visit.

Replace Bathhouse 3rd Floor Ceiling 011100-2

B. Before starting work, the Contractor shall verify and/or establish all existing conditions, dimensions, variation of wall plumb and square etc. at the site.

Submit discrepancies discovered to Contracting Officer’s Representative for interpretation before proceeding with associated work.

C. Historic Fabric and Murals: The Third Floor walls and columns are decorated with murals painted directly on the plaster surfaces and the floor is a decorative terrazzo. These surfaces must be protected during all operations.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. The existing ceiling tiles and tile adhesive have been tested for asbestos and none was detected, see included report.

2. Due to the age of the existing finishes (prior to 1978), the Contractor shall assume that lead containing paint is present in the area of work unless test results prove otherwise. Comply with current federal, state and local regulations concerning the waste characterization, handling, containerization, transport, and disposal of lead.

3. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify Contracting Officer.

Replace Bathhouse 3rd Floor Ceiling 011100-3

1.5 CONTRACTOR’S USE OF PREMISES:

A. The Contractor's use of the site will be coordinated by the Contractor and the Contracting Officer’s Representative.

B. The site is available to the contractor between 8:00 AM to 4:00 PM.

C. The contractor will have exclusive access to the third floor, the area will be closed to staff and public during the work.

D. Use of the premises for work, storage, and vehicular parking is limited to the areas designated by the Contracting Officer’s Representative. Confine storage of materials to areas approved by Contracting Officer’s Representative.

E. Parking will be available approximately 1/8th mile from the building. Parking passes will be available.

F. A utility sink is not available on the third floor. The nearest sink is located on the second floor.

1.6 PRE-CONSTRUCTION CONFERENCE

A. Before start of construction, Contracting Officer will arrange a tele-conference meeting with Contractor. The meeting agenda will include the following as a minimum:

1. Park rules and regulations

2. Authorized Representatives

3. Correspondence procedures

4. Modifications

5. Payments to Contractor

6. Acceptance/rejection

7. Notice to proceed

8. Tentative construction schedule

9. Protection of art murals

10. Safety

1.7 PROGRESS AND COMPLETION

A. The normal work week will be Monday through Friday and no work will be permitted on Federal holidays.

Replace Bathhouse 3rd Floor Ceiling 011100-4

B. Should Contractor desire to carry out part of the work at times other than normal working hours or days, submit written request to do so a minimum of 24 hours in advance to Contracting Officer together with specific calendar days and hours Contractor wishes to work and descriptions of activities Contractor proposes to carry out during those times. Activities will not be permitted at times other than those specified or subsequently approved in writing by the Contracting Officer. Only those activities specifically approved by the Contracting Officer are permitted during hours or on days other than those stipulated as normal working days and hours. Contracting Officer is responsible for managing access to, and security of the building.

1.8 CONTRACTOR FURNISHED ITEMS

A. All materials shall be Contractor furnished from outside the park.

1.9 GOVERNMENT FURNISHED PROPERTY (GFP) AND SERVICES

A. Water and Sewer Service from Existing System: Water from Government's existing water system is available for use without metering and without payment of use charges.

B. Electric Power Service from Existing System: Electric power from Government's existing system is available for use without metering and without payment of use charges. However, availability of electrical outlets is limited. Contractor is responsible for any needed extension cords.

1.10 MATERIALS OWNERSHIP

A. Historic items, relics, and of interest or value to Contracting Officer that may be encountered during removal and dismantling work remain Owner's property. Carefully dismantle and salvage each item or object.

1.11 STORAGE AND PROTECTION OF HISTORIC MATERIALS

A. Historic Materials for Reinstallation:

1. Clean and stabilize historic items as needed to protect functional condition for reuse.

2. Pack or crate items; cushion against damage during handling. Label contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment unless otherwise

Replace Bathhouse 3rd Floor Ceiling 011100-5 indicated. Provide connections, supports, and miscellaneous materials to make item functional for use indicated.

B. Existing Historic Materials to Remain: Protect construction indicated to remain against damage and soiling from construction work. Where permitted by Contracting Officer, items may be dismantled and taken to a suitable, protected storage location during construction work and reinstalled in their original locations after historic treatment and construction work in the vicinity is complete.

C. Storage and Protection: When taken from their existing locations, catalog and store historic items within a stable enclosure.

1. Identify each item with a nonpermanent mark to document its original location. Indicate original locations on plans elevations, sections, or photographs by annotating the identifying marks.

2. Owner will provide a secure storage closet on the third floor of the Bathhouse for storage of only the Owner’s historic items, fixtures and other components.

PART 2 - MATERIALS (NOT USED)

PART 3 - EXECUTION

3.1 DELIVERY AND DEBRIS HAULING

A. All material, supplies and equipment transportation, deliveries and debris removal must be via the elevator to/from the first level. Use of stairwells or the main lobby will not be permitted.

3.2 PROTECTION, GENERAL

A. Ensure that supervisory personnel are on-site and on duty when historic treatment work begins and during its progress.

B. Protect persons and surrounding surfaces of building from harm resulting from the work.

1. Use only proven protection methods, appropriate to each area and surface being protected.

2. Contain dust and debris generated by removal and dismantling work and prevent it from reaching the public or adjacent surfaces.

3. Protect floors and other surfaces from damage, wear, and staining.

Replace Bathhouse 3rd Floor Ceiling 011100-6

C. Temporary Protection of Historic Materials and Art Murals:

1. Protect existing historic materials with temporary protections and construction. Do not deface or remove existing materials.

2. Do not attach temporary protection, tape or adhesives to historic surfaces including the art murals.

3. Art murals are to be completely covered if spraying or rolling paint applications are used.

D. Comply with each product manufacturer's written instructions for protections and precautions. Protect against adverse effects of products and procedures on people and adjacent materials and components.

END OF SECTION

SECTION 012700 DEFINITION OF CONTRACT LINE ITEMS

Replace Bathhouse 3rd Floor Ceiling 012700-0

PART 1 - GENERAL

1.1 DESCRIPTION

A. The intent of this section is to explain, in general, what is and what is not included in a bid item, and the limits or cut-off points where one bid item ends and another begins. Proposals must include costs for each individual Contract Line Item.

B. If no bid item exists for a portion of the work, include the costs in a related bid item.

1.2 CONTRACT LINE ITEM NO.1 – REPLACEMENT OF CEILING TILES

This bid item consists of all work for the removal of existing adhered ceiling tiles, removal of existing adhesive on plaster substrate, preparation of the plaster substrate for new adhesive soffits and installation of new adhered acoustic ceiling tiles. It includes removal of light fixtures, exits signs and other equipment/fixture components as required to access surfaces under such fixtures for ceiling removal/installation, and the reinstallation of such fixtures or components.

PART 2 - MATERIALS

NOT USED

NOT USED

SECTION 013523 SAFETY REQUIREMENTS

Replace Bathhouse 3rd Floor Ceiling 013523-1

PART 1 - GENERAL

A. The work of this section consists of establishing an effective accident prevention program and providing a safe environment for all personnel and visitors.

1.2 QUALITY ASSURANCE

A. Comply with all contract clauses entitled "Safety Plan". In case of conflicts between Federal, state, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

1.3 SUBMITTALS

A. Safety Plan - Prior to start of work, Contractor to provide a Site Specific Safety Plan. See document “Guidance on Site Specific Safety Plans”.

1.4 ACCIDENT REPORTING

A. Reportable Accidents: A reportable accident is defined in the General Provisions and includes fires. Within 7 days of a reportable accident, fill out and forward to the Contracting Officer a DI-134 form, which may be obtained from Contracting Officer.

B. All Other Accidents: The Contractor shall report all other accidents to the

Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

1.5 QUALIFICATIONS OF EMPLOYEES

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

C. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment. Provide operating instructions for all equipment. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

SECTION 013523 SAFETY REQUIREMENTS

Replace Bathhouse 3rd Floor Ceiling 013523-2

PART 2 - MATERIALS

2.1 FIRST AID FACILITIES

A. Provide adequate facilities for the number of employees and the type of work at the site.

2.2 PERSONNEL PROTECTIVE EQUIPMENT

A. Meet requirements of NIOSH and OSHA, where applicable, as well as ANSI.

3.1 EMERGENCY INSTRUCTION

A. Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

3.2 PROTECTIVE EQUIPMENT

A. Inspect personal protective equipment daily and maintain in a serviceable condition. Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

B. Inspect and maintain other protective equipment and devices before use and on a periodic basis to insure safe operation.

C. The third floor does not have mechanical ventilation. Depending on the contractor’s methods and products used, the contractor may need to provide mechanical ventilation of the space.

3.3 TRAINING

A. First Aid: Provide adequate training to ensure prompt and efficient first aid.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury.

SECTION 020700 PROTECTION OF BUILDING FABRIC AND ENVIRONMENT

Replace Bathhouse 3rd Floor Ceiling 02070-1

PART I - GENERAL

1.1 DESCRIPTION:

The work of this section consists of protection of historic fabric and furnishings from construction operations and protection of the interior building environment and furnishings from dust and other contaminants during construction operations.

1.2 RELATED WORK:

The provisions of this section apply to all other sections of these specifications. Also see other divisions of these specifications.

1.3 SUBMITTALS:

A. Submit proposed equipment, methods, procedures and schedules for providing required protection of walls, murals, terrazzo floor/stairs and windows.

1.4 QUALITY ASSURANCE:

Printed instructions of manufacturers of protection and containment systems and compliance with approved submittals.

1.5 PROJECT CONDITIONS:

A. Protection and containment systems may be manufactured systems or Contractor provided; in either case systems and methods require an approved submittal for implementation. Systems listed in this specification are suggested for consideration only -- these systems may have limitations not meeting the requirements for all situations. Contractor shall ascertain the best system(s) for the project as the basis for submittal.

B. Ensure safety of persons in work area. Provide temporary barricades as required.

C. Provide adequate fire protection. Keep area clear of hazardous substances and debris.

D. Maintain access to exits at all times.

E. Building materials, including plaster, painted murals, terrazzo, stone and wood, are easily soiled, stained, burned and marred. Accidental spills, contaminants, stains, scorches and mars cannot be removed from these materials. Do not touch, lean on, lean tools or materials against or on building surfaces. Provide protection during all operations to protect all building materials and surfaces. Keep clothing and footwear

Replace Bathhouse 3rd Floor Ceiling 02070-2 clean, wear clean disposable gloves to prevent stains from materials such as galvanized metals or manufacturer's protective coatings; wash hands frequently.

F. Do not use floors or other building surfaces for a work surface to perform any construction operation.

G. All equipment and tools, including cords, shall be free of dirt, grease and oils and shall be maintained in clean operating condition at all times. Dirty, greasy, oily or leaking equipment will not be permitted at any time.

H. Should accidental damage to building fabric occur, stop work immediately and notify Contracting Officer. Consult with Contracting Officer to determine repair procedures, materials, methods, expertise required, quality control and schedule.

Secure approval of repair program before execution. Restore damaged areas, repairing or replacing damaged materials or items, in the approved manner at no additional expense to the Government. If repair requires expertise not readily available to Contractor, the repair will be accomplished by qualified expertise chosen by the National Park Service at the expense of the Contractor. This will include any shipping or travel costs for those services.

PART 2 - PRODUCTS

2.1 GENERAL PROTECTION REQUIREMENTS:

Provide protective barriers to prevent damage or breakage of building components, attached fixtures and furnishings that cannot be removed, including decorative structural members, ceilings, walls, floors, lighting fixtures, cabinets, shelving, furnishings, equipment and similar items. Protect from falling objects, dirt, dust, liquids, chemicals, heat, abrasion or impacts that could be generated by construction operations. Systems and methods must be approved prior to execution of the work and may require adjustment as the work progresses.

A. Use fire retardant sheeting, panels and padding or other necessary materials for protective enclosures and protection of building surfaces and fabric at the work location.

B. Do not fasten, tape or otherwise secure protective systems or materials to building surfaces, murals and fabric.

C. Use only approved materials and methods to protect plaster, painted murals, terrazzo, stone and wood and other building fabric at work locations from abrasion, equipment, dust, dirt, lubricants, stains, impacts or any other sources of damage.

Replace Bathhouse 3rd Floor Ceiling 02070-3

D. Use approved materials and methods of padding all construction equipment, especially metal items, including but not limited to ladders, tool carts, equipment stands, supports and guides. Do not lay tools on, or lean them against, unprotected floors, walls or other building elements.

1. Provide approved padding on ladders and equipment stands. Use ladders only at approved locations. Ladders can not be leaned against or on walls, columns or other building surfaces.

2. Scaffolding shall be provided with rubber tired wheels having lock-down mechanisms. Secure platform panels or planks to scaffolding. Provide side panels, secured to scaffolding, to aid in preventing dropping of tools and materials.

3. Provide rubber tired wheels on tool and equipment carts. Provide approved protective pads or other devices on equipment stands.

4. Secure approval for use of other means of access to work locations, such as work platforms or platform lifts.

5. Handle materials carefully, and carry long materials with a worker at each end, to prevent dropping and impacts against building surfaces and elements. The Contracting Officer may require modification of methods as required to prevent damage.

6. Ceiling tiles shall be removed individually by hand and not allowed to fall, drop to the floor or contact the wall murals.

2.2 FURNISHINGS PROTECTION:

A. Provide protective structures for fixtures and furnishings which cannot be removed from the work areas. Submit for approval materials, construction and erection details for each type of protective system or structure. Design and construct protective structures to discourage use as a working surface and to discourage temporary storage of materials or tools which could otherwise fall or slide off of a protective structure. Materials, construction and erection and dismantling details shall be as approved.

1. Protection will be required for lighting fixtures which cannot be relocated because of size and weight. Such items include, but are not limited to, Replace Bathhouse 3rd Floor Ceiling 02070-4 chandeliers and lighting fixtures in all areas.

2.3 DUST CONTAINMENT AND VENTILATION SYSTEM:

A. Provide containment of dust generated during removal of ceiling tiles and surface preparation for painting. Dust and contaminants shall not collect on the wall murals or migrate to other areas of the building including the Third Floor Elevator Lobby, Second Floor and Fourth Floor.

B. System must provide seal against walls, floor and ceiling without requiring physical attachment (including mechanical fasteners or adhesives) to building surfaces by providing pressure against building surfaces and include use of a compression gasket of protective foam or other material to prevent scratching, marring or other damage of building surfaces.

3.1 PREPARATION:

A. In advance of construction operations, determine in consultation with the Contracting Officer, elements or fixtures which cannot be removed and require special protective measures. Protect with approved systems and methods.

B. Protect building surfaces, fixtures, furnishings and equipment within and adjacent to work areas and containment systems in accordance with the approved submittals.

3.2 INSTALLATION:

A. Install in accordance with approved submittal and in accordance with manufacturer's instructions when applicable.

B. Avoid excessive pressure loads on walls, ceilings and other building elements by careful location and erection of temporary dust control and containment systems.

3.3 REMOVAL AND CLEAN-UP:

A. Upon completion of the work in the protected area, completely remove protective systems and equipment.

B. If any cleaning of building surfaces is necessary after removal of protective systems, Replace Bathhouse 3rd Floor Ceiling 02070-5 secure approval of cleaning materials, equipment and methods. Upon approval, clean in presence of Contracting Officer.

END

SECTION 095100 ACOUSTICAL CEILING TILES

Replace Bathhouse 3rd Floor Ceiling 095100-1

PART 1-GENERAL

A. Scope: Work under this Section includes all materials and installation necessary to provide Acoustical Ceilings, as shown and detailed on the drawings and specified herein.

B. Related Work Specified Elsewhere:

1. Division 011100 – Summary of Work

2. Division 020500 – Protection of Building Fabric and Environment

1.2 QUALITY ASSURANCE

A. References:

1. Ceilings and Interior Systems Contractors Association (CISCA):

Acoustical Ceilings, Use and Practice.

2. Underwriters Laboratory (UL): Fire Resistance Directory and Building Material Directory.

B. Qualifications: Installer specializing in the work of this Section with minimum three (3) years documented experience.

C. Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

1. Provide one 10 foot by 10 foot minimum mock-up area that includes full and cut tiles.

2. Do not proceed with remaining work until workmanship is approved.

3. Refinish mock-up area as required to produce acceptable work.

4. Mock-up may be incorporated into final installation if approved.

1.3 SUBMITTALS

A. Shop Drawings: Submit shop drawings showing reflected ceiling plans indicating tile grid pattern, location of light fixtures, mechanical air supply and return outlets and other items affecting ceiling construction. Identify locations of access panels, where required.

Replace Bathhouse 3rd Floor Ceiling 095100-2

B. Samples:

1. Acoustical Board: Submit in specified color.

C. Product Data: Manufacturer's data sheets on each product to be used, including:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Installation methods.

D. Certificates: Manufacturer's certified test reports for each specified NRC and STC requirement.

1.4 PRODUCT HANDLING

A. Delivery: Deliver material in the manufacturer's original, unopened, undamaged containers with identification labels intact.

B. Provide labels indicating brand name, source of procurement, style, size and thickness.

C. Storage and Protection: Store materials protected from exposure to harmful environmental conditions and at temperature and humidity conditions recommended by the manufacturer.

D. Handling: Handle materials to avoid damage.

1.5 PRE-INSTALLATION MEETING

A. Convene minimum two week prior to starting work.

1.6 SITE CONDITIONS

A. Environmental Requirements: Maintain temperature approximating operational conditions, before, during and after installation; humidity not more than 70%.

1.7 MAINTENANCE

A. Extra Stock: Deliver one (1) percent or a minimum of one full container of each kind and type of acoustical material installed.

Replace Bathhouse 3rd Floor Ceiling 095100-3

B. Guarantee: Provide one (1) year written guarantee commencing from date of final acceptance.

PART II - PRODUCTS

2.1 MATERIALS

A. Manufacture:

1. USG Interiors, Inc., Armstrong World Industries, Inc., CertainTeed or approved equal.

B. Acoustical Tiles:

1. Basis of Design: The design is based on the following: USG Interiors, LLC, “F Fissured Basic”.

2. Classification: Provide ceiling panels complying with ASTM E 1264 for type, form and pattern as follows:

a. Type: III, mineral base with painted finish

b. Form: 4, Cast or Molded

c. Pattern: D, Fissured

3. Color: Flat White 050.

4. LR: Not less than 0.79.

5. NRC: Not less than 0.70.

6. CAC: Not less than 25.

7. Edge/Joint Detail: BESK Beveled, kerfed and rabbeted.

8. Panel Thickness: 3/4 inch.

9. Modular Size: 12 by 12 inches.

10. Recycled Content: 69%

11. High Recycled Content: Classified as containing greater than 50% total recycled content. Total recycled content is based on product composition of post-consumer and pre-consumer post-industrial recycled content per FTC guidelines.

Replace Bathhouse 3rd Floor Ceiling 095100-4

12. VOC Emissions: Third party (GREENGUARD Gold) certified for low-emitting performance, meets California Department of Department of Public Health’s (CDPH) Standard Method v1.1-2010 (CA Section 01350).

‘Certificates of Compliance’ for Low VOC Emissions are available on usg.com and at productguide.ulenvironment.com.

C. Ceiling Tile Adhesive

1. As recommended by ceiling tile manufacture.

2. The following is a list of manufacturers that recommend the use of their products with Basis of Design USG 12” x 12” acoustical ceiling tiles.

a. Franklin International - Titebond Acoustical Ceiling Tile Adhesive (800 347-4583)

b. ICI - MACCO - Liquid Nails Latex Adhesive for Ceiling Tile (800

634-0015)

c. TACC International - Miracle Ceiling Tile Adhesive (800 503-6991)

PART III - EXECUTION

3.1 PREPARATION

A. Examination: Examine conditions of work in place before beginning work; report defects.

3.2 INSTALLATION

A. General: Install in conformance with referenced standards, manufacturer's written directions, as shown, and as specified. Installation shall be performed by trained crews under the direction of a trained foreman. Finished appearance in all cases shall be in exact conformance with the contract documents.

B. Acoustical Tile:

1. Tile: Install smooth, level or plumb, as shown; with exposed tile joints true and straight, and junctures neat, tight and properly trimmed. Unevenness, edge or corner offsets, cupping, scratches, broken tile or other imperfections, not acceptable.

Replace Bathhouse 3rd Floor Ceiling 095100-2

2. Adhesive:

a. Follow guidelines in the CISCA Ceiling Systems Handbook, Chapter 5, for general preparation, planning and installation instructions for cemented acoustical tile ceilings.

b. To prepare a ceiling tile for installation, brush off any loose dust from the tile back and prime coat the back of the tile with a quality wall and ceiling primer.

c. Prepare the ceiling surface according to the recommendations of the tile adhesive manufacturer.

d. Once the primer is dry, apply a 1-¼” diameter, minimum, spots of adhesive at corners and press firmly into place (follow CISCA recommendations for panel installation).

e. Insert splines in the tile kerfs to obtain a level appearance and to minimize lipping.

3.3 CLEANING

A. General: Upon completion, thoroughly clean exposed surfaces per manufacturer's instructions.

END OF SECTION 09510

Replace Bathhouse 3rd Floor Ceiling & Paint Photos Oct. 28, 2021

Overview of third floor ceiling looking east.

Overview of third floor ceiling looking west.

PHOTOGRAPHS – THIRD FLOOR CEILING

Replace Bathhouse 3rd Floor Ceiling Photos March 1, 2022

Chandelier light fixture, one of five, note smoke detectors on beams.

Replace Bathhouse 3rd Floor Ceiling Photos March 1, 2022

Partial view of ceiling – note curved tile cuts, exit sign and conduit mounted flush with ceiling tiles.

tbloch Polygonal Line tbloch Rectangle tbloch Callout

AREA OF WORK

tbloch Text Box

CEILING TILE REPLACEMENT

tbloch Callout

GRILLE

tbloch Callout

HATCH AREA IS LOCATION OF CEILING TILES - TYP.

tbloch Callout

LIGHT FIXTURE - TYP.

tbloch Text Box 4/23/2020 tbloch Rectangle tbloch Text Box

CEILING TILE GRID CONTROL PLAN

tbloch Text Box A14 tbloch Text Box

CEILING TILE REPLACEMENT

tbloch Text Box 4/23/2020 tbloch Callout CEILING TILE GRID JOINT CENTERED IN LARGER BAY IN BOTH DIRECTIONS, LAYOUT TILE EQUALLY ON BOTH SIDES OF CENTER JOINTS tbloch Callout

CEILING TILE GRID JOINTS CONTINUE ALIGNMENT FROM LARGER BAYS INTO SMALLER BAYS

tbloch Line tbloch Line tbloch Line tbloch Line tbloch Text Box

ALIGN