Attachment 1 - Freetown Specifications.pdf

OBO PROJECT MANUAL & SPECIFICATIONS

June 1st, 2026

NEW OFFICE BUILDING, RECREATION CENTER, & CACs ROOF REPLACEMENT

FREETOWN, SIERRA LEONE

Roof & Façade Management Program

Oversea Building Operations

Washington DC

NOB ROOF REPLACEMENT

FREETOWN, SIERRA LEONE

06.01.2026 2

SECTION 00003 – TABLE OF CONTENTS

Division 1

01010 – Summary of Work

01115 – Construction Security

01120 – Alterations Project Procedures

01022 – Site Information

01500 – Temporary Facilities and Controls

01535 – Roof Construction Safety

01700 – Project Close-out

Division 2

02072 – Minor Removals and Renovation Work

Division 3 - 6

Not used

Division 7

07526 – Hot Rubberized Protected Membrane Roofing

07620 – Sheet Metal Flashing

Division 8

Not used

Division 9

09910 – Exterior Painting

Division 10 – 16

Not Used

Division 17

17000 – Temporary Electromechanical Disconnects

END OF TOC

06.01.2026 SUMMARY OF ROOF WORK 01010 - 1

SECTION 01010 - SUMMARY OF ROOF WORK

PART ONE - GENERAL

1.01 SUMMARY:

A. The U.S. Embassy Freetown and Overseas Buildings Operations (OBO) has a requirement to replace the existing roofs on the New Office Building (NOB), Recreation Building

(REC), and the Compound Access Control Buildings (CACs).

B. The approximate roof areas of each roof are as follows:

1. NOB Floors 2 & 3 10,000 sq. ft.

2. NOB Lower Level 10,500 sq. ft.

3. NOB Upper Level 2,500 sq. ft.

4. REC 2,500 sq. ft.

5. CACs (combined) 7,500 sq. ft.

C. The work includes, but is not limited to, the following:

1. Removal and disposal of existing roofing, flashings, and insulation down to the structural concrete deck.

2. Clean deck to base concrete.

3. Installation of hot rubberized asphalt membrane.

4. Installation of new base flashings and counterflashings at penetrations, curbs, walls, and perimeters.

5. Installation of protection course, drainage course, new XPS insulation, filter fabric, and concrete pavers in a PMR configuration.

6. Lowering of roof drains, scuppers, conductor heads, and downspouts to accommodate new membrane levels.

7. Temporarily disconnecting, rerouting, & reinstalling of existing conduits, lightning protection, and piping on roofs.

8. Removal of abandoned penetrations, curbs, and equipment.

9. Painting of ferrous metals, including drain strainers, pipes, etc.

10. At NOB front and rear entrance canopies, troubleshoot and repair leaks.

11. Apply vapor-permeable coating of inside of parapet above counterflashing

(CACs only).

1.02 SUBMITTALS:

A. Detailed project schedule showing work phasing and proposed daily progress.

B. Applicator's License Certificate: Roofing material manufacturer's agreement indicating date application was approved and expiration date.

C. Material manufacturer's product data sheets, written approval/acceptance of specified tests for project, fastener pattern layout, details, insulation, and all related materials based upon existing site conditions.

D. Shop Drawings of all specific waterproofing details.

E. Construction Accident Prevention Plan (CAPP)

F. Contractor’s & manufacturer’s warranties that are to be issued upon project completion.

1.03 SUBSTITUTIONS AND PRODUCT OPTIONS:

A. Contractor's Representation: Request for substitution constitutes a representation that

Contractor:

06.01.2026 SUMMARY OF ROOF WORK 01010 - 2

1. Has investigated proposed product and determined that it is equal to or superior in all respects to that specified.

2. Shall provide same warranties for substitution as for product specified.

3. Shall coordinate installation of accepted substitution into Work and make such other changes as may be required for Work to be complete in all respects.

4. Waives all claims for additional costs, under his responsibility, related to substitution which subsequently becomes apparent.

5. If substitution is not approved or accepted, Contractor shall furnish specified product.

1.04 QUALITY CONTROL:

A. Overseas Buildings Operations has the right to inspect and test all services, to the extent practicable at all times and places during the work. OBO may perform full-time quality assurance inspections [QAI] and tests during construction to confirm the work is installed according to the Contract Documents.

B. Contractor shall maintain quality control over suppliers, manufacturers, products, services, site conditions, and workmanship to produce work of specified quality.

C. Contractor shall be approved by manufacturer to perform the work for the specified guarantee period.

D. Contractor shall be responsible for the following construction inspections and tests:

1. Roof Metal Manufacturer’s Warranty Inspection

1.05 STORAGE OF MATERIALS:

A. Proper storage of materials is the sole responsibility of Contractor. Protect all materials susceptible to moisture including, but not limited to, all roll goods, insulation, wood, and plywood in dry, above ground, watertight storage. Keep all labels intact and legible, clearly showing the product, manufacturer, and other pertinent information.

B. Store materials on site. Cover and protect materials subject to damage by weather, including during transit. Stored materials shall be available for inspection.

C. Store flammable and volatile liquids in sealed containers located a minimum of 20 feet from existing buildings.

D. Liquid products shall be delivered sealed, in original containers. Store roll goods in an upright position.

E. Distribute material, debris, and equipment over the roof deck to avoid damage to the structural deck. Place materials and equipment to be stored on the roof as nearly direct over structural members as can be determined. Secure equipment, material, and debris on the roof to prevent movement by wind or other elements.

1.06 PROJECT PROCEDURES:

A. Embassy will occupy premises during entire period of construction for the conduct of normal, daily operations. Cooperate with Embassy's Representative in all construction operations to minimize conflict and to facilitate Embassy usage.

B. Contractor shall conduct his operations so as to ensure least inconvenience to

Embassy's operations.

C. Contractor shall take precautions to avoid excessive noise or vibration that would disturb Embassy's operations. When directed by Embassy, Contractor shall perform certain operations at designated time of day or night in order to minimize disturbance to Embassy's operations.

06.01.2026 SUMMARY OF ROOF WORK 01010 - 3

D. Contractor shall take all necessary precautions to assure a watertight condition in the operation portion of the building during construction.

PART TWO - PRODUCTS

Not Used.

PART THREE - EXECUTION

3.01 PERIOD OF PERFORMANCE: (NOTE: All Days Indicated are Calendar Days)

A. Solicitation:

1. Proposals: 30 days after RFP

2. Site Visit: 3 days on-site

3. Questions & Answers: 30 days

4. Award: DAY ONE

B. Pre-Construction:

1. Product submittals 60 days after award

3. OBO Review: 30 days

4. Products submittal revisions: 30 days after OBO comments

5. OBO Approval: 30 days

6. US & Local Crew Submissions: 10 days

7. OBO & RSO Review: 30 days

C. Construction:

1. Material Procurement: 30 days

2. Shipping & Customs: 30 + 15 days

3. NOB (all Roof Areas): 120 days on-site

4. REC: 30 days on-site

5. CACs: 45 days on-site

5. TOTAL DAYS ON SITE 195 days

D. TOTAL PERIOD of PERFORMANCE 430 DAYS

E. Rainy Season Months: May - November

END OF SECTION

06.01.2026 ALTERATIONS PROJECT PROCEDURES 01120 - 1

SECTION 01120 ALTERATIONS PROJECT PROCEDURES

PART ONE - GENERAL

1.01 DESCRIPTION:

A. Summary: The procedures and administrative requirements of this Section apply to all

Sections of the Specification which are involved in alterations to the existing building.

B. Extent Notes: Cut into or partially remove portions of the existing building as necessary to make way for new construction. Include such work as:

1. Cutting, moving, or removal of items shown to be cut, moved, or removed.

2. Cutting, moving, or removal of items not shown to be cut, moved, or removed, but which must be cut, moved, or removed to allow new work to proceed.

Work or items which are to remain in the finished work shall be patched or reinstalled after their cutting, moving, or removal, and their joints and finishes made to match adjacent or similar work.

3. Removal of existing surface finishes as needed to install new work and finishes.

4. Removal of abandoned items and removal of items serving no useful purpose, such as abandoned piping.

5. Repair or removal of dangerous or unsanitary conditions resulting from alterations work.

1.02 ALTERATIONS, CUTTING AND PROTECTION:

A. Extent:

1. Perform cutting and removal work so as not to cut or remove more than is necessary and so as not to damage adjacent work.

2. Conduct work in such a manner as to minimize noise and to minimize accumulation and spread of dirt and dust.

B. Securement of Openings: Protect all openings made in existing roofs, etc., with barricades to prevent accidents to Owner's and Contractor's personnel. If required by

Owner, provide a workman at ground level inside the building at all times during the tear-off operations and when the roof deck or roofing is being installed. It will be the responsibility of this individual to alert personnel in the area of the work being performed overhead, to watch for falling debris, and to broom clean the area each day of any dirt that may result from the roof replacement operations.

C. Protection:

1. Protect remaining finishes, equipment, and adjacent work from damage caused by cutting, moving, removal, and patching operations. Protect surfaces which will remain a part of the finished work.

2. During demolition, cutting, and construction, provide positive dust control by wetting dusty debris and by completely sealing openings to Owner-occupied areas with temporary seals so as to prevent spread of dust and dirt to interior areas.

D. Special Protection:

1. Provide temporary weather protection over open roof penetrations until final flashing is completed.

2. Provide roof applicator at jobsite continuously during rainstorms which may occur while job is in progress to make temporary or emergency repairs.

06.01.2026 ALTERATIONS PROJECT PROCEDURES 01120 - 2

E. Debris:

1. Removed material becomes property of the Contractor. Load removed material directly on trucks for removal from site. Dispose of removed material legally.

Do not allow debris to enter sewers.

2. Do not allow material accumulations to endanger structure.

3. Cover and secure material accumulations as necessary to prevent the material from spreading over the rooftop or becoming airborne.

1.03 PATCHING, EXTENDING, AND MATCHING:

A. Patch and extend existing work using skilled mechanics who are capable of matching the existing quality of workmanship. The quality of patched or extended work shall not be less than that which exists.

B. In areas where any portion of an existing finished surface is damaged, lifted, stained, or otherwise made or found to be imperfect, patch or replace the imperfect portion of the surface with matching material.

C. Quality:

1. In the Sections of the product and execution of Specifications which follow these General Requirements, no concerted attempt has been made to describe each of the various existing products that must be used to patch, match, extend, or replace existing work. Obtain all such products in time to complete the Work on schedule. Such products shall be provided in quality which is in no way inferior to the existing products.

2. The quality of the products that exist at the building, as apparent during pre-bid site visits, shall serve as the Specification requirement for strength, appearance, and other characteristics.

D. Transitions:

1. Where new work abuts or finishes flush with existing work, make the transition as smooth and workmanlike as possible. Patched work shall match existing adjacent work in texture and appearance so as to make the patch or transition invisible to the eye at a distance of no closer than 3 feet (1m).

2. Where masonry or other finished surface is cut in such a way that a smooth transition with new work is not possible, terminate the existing surface in a neat fashion along a straight line at a natural line of division and provide trim appropriate to the finished surface.

E. Restore existing work that is damaged during construction to a condition equal to its condition at the time of the start of the Work, and to satisfaction of Owner.

PART TWO - PRODUCTS

Not Used.

PART THREE - EXECUTION

Not Used.

NOB, REC, & CACs ROOF REPLACEMENT

07/01/2026 CONSTRUCTION SECURITY 01 11 50 - 1

UNCLASSIFIED

SECTION 01 11 50 – CONSTRUCTION SECURITY

PART ONE – GENERAL

1.01 SUMMARY:

A. Drawings and Specifications for this project are UNCLASSIFIED (U).

B. Limit dissemination of unclassified information on a need-to-know basis. Assume responsibility for unclassified information as received, including drawings, sketches, photographs, written descriptions of work requirements, and similar information. Return such information promptly to COR upon request.

C. The work in this section involves interfaces with several security-related Government entities and includes, but is not limited to:

1. Screenings and Background Checks for Local Labor.

2. Access to Site and Work Area.

3. Procurement and Shipping Logistics.

4. Accommodating Surveillance and Inspection by Government.

1.02 DEFINITIONS:

A. CONTROLLED ACCESS AREA (CAA) are areas within a building where classified information will be handled, stored, discussed or processed. For this project, the CAA is the structural roof deck and the office space directly below the roof deck in the Chancery Office Building.

B. CLEARED U.S. CITIZEN possesses a current validated security clearance as required by the

DD-254, the Contractor’s facility clearance, and authorized to be at the project site.

C. SITE SECURITY MANAGER (SSM) is the Regional Security Officer (RSO) or a properly appointed designee responsible for this project.

D. CONSTRUCTION SECURITY PLAN (CSP) is a certification plan for the Project’s security requirements prepared by OBO listing principal actions, clearance levels, materials classification and logistics similar to this specification section. This plan will be sent to the

Post for their use and information during the Project.

1.03 SUBMITTALS:

A. Security Clearances: Submit a Visitation Authorization Request (VAR) to include dates of the project, clearance level, date of birth, social security number and Letters of Consent

(LOC) for each individual traveling to the project site. VAR shall be requested for one year.

B. Where background checks are required for workers and subcontractors including manufacturer’s representatives and others performing work in limited-access, submit information required for securing clearances well in advance of time such accesses will be needed, typically twenty–one (21) days.

C. Vehicle Clearances: Submit authorization requests, to include dates, vehicle type, license number and driver name, for each motorized vehicular construction implement which is required to be on-site. Schedule vehicles to arrive during off hours when possible. Provide one day's advanced notice on vehicle arrivals times.

D. Shipping Plans: Provide written plan for shipment of materials to include the following information:

1. Port(s) of embarkation, debarkation and shipment route.

2. Estimated time of arrival and duration of intermediate stops.

07/01/2026 CONSTRUCTION SECURITY 01 11 50 - 2

UNCLASSIFIED

3. Company names and countries-of-registry for contemplated sea/air carrier(s), and freight forwarder(s).

4. Bill of Materials (SECURE shipments only)

PART TWO – PRODUCTS

Not Used.

PART THREE – EXECUTION

3.01 U.S. CLEARED PERSONNEL:

A. Contractor personnel’s minimum level of security clearance for this Project is SECRET.

B. Obtain security clearances for:

C. Persons involved with performance of work.

D. Persons requiring access to confidential materials/information/equipment.

E. Escort Training may be provided by the Department of State for the contractor’s supervisory personnel who will be escorting uncleared personnel on-site.

F. Contractor's personnel at all levels may be required to attend counter-intelligence briefings and host country briefings, and may be required to attend debriefings when returning from host country.

G. Management personnel are required to attend special security briefings/debriefings concerning the reporting requirements on unusual incidents/activities/information relating to Project Security.

3.02 LOCAL LABOR:

A. An Escort Ratio of the number of host country or third country national uncleared personnel to local security guard force or U.S. cleared citizen shall be determined by

Regional Security Officer.

B. Local labor may be used on this Project, provided that unclear laborers are escorted by

U.S. cleared personnel at all times.

3.03 ACCESS TO SITE:

A. Access to the roof:

1. U.S. cleared citizens shall access from the INTERIOR and EXTERIOR of the building.

2. Uncleared personnel shall access from the INTERIOR and EXTERIOR of the building.

3. Material loading/off loading shall be from the EXTERIOR of the building.

B. Contractor shall be responsible to escort their uncleared personnel, including vehicles, at all times while on the site. Limit personnel movement through the interior. SSM will determine access routes and allowable hours.

C. Identification Badges: The Government will issue identification badges, coded to indicate status and level of security clearance. Require uncleared person(s) to leave their badges upon leaving Project Site each day.

D. Search Procedures: Government reserves the right to conduct search of belongings both at point of entering Project Site and at point of leaving.

07/01/2026 CONSTRUCTION SECURITY 01 11 50 - 3

UNCLASSIFIED

3.04 SHIPPING OF MATERIALS:

A. Materials for this Project are UNCLASSIFIED and shall be shipped NON-SECURE.

B. Use surface and air carriers in the following order of preference:

1. U.S. military (SECURE shipments only)

2. U.S. flag carriers

3. Foreign flag carriers of countries which are not on Designated Countries List.

C. All U.S. purchased materials that will penetrate the outermost plane of the CAA will be procured in the US by minimum Secret cleared US citizens, without the vendor being aware of the ultimate destination. Materials and equipment will be forwarded to a DS approved Consolidated Receiving Point (CRP) for onward SECURE shipping.

D. Government reserves the right, in its sole discretion, to determine whether products have been compromised, and therefore cannot be used in CAAs and adjacent areas. Where such compromise results from Contractor's failure to comply with security procedures, the Contractor shall bear entire cost associated with rectification of compromise and restoration of required security provisions.

3.05 PROTECTION OF MATERIALS:

A. Materials for this Project shall be procured by NON-SECURE or LOCAL means and stored

NON-SECURE.

B. Maintain confidentiality in procurement of products by non-disclosure of destination information until items are fully procured and protected.

C. Approved Procurement Methods for this Project:

1. Secure U.S. Procurement: Select quantity required from chosen supplier. Submit specific Bill of Materials for procurement of products/materials/equipment to be shipped SECURE to the site. For each product identify:

a. Vendor and address

b. Material type and quantity

c. Country of origin, defined as location where end product is produced.

d. Country of purchase for items to be procured outside the U.S.

2. Non-Secure U.S. Procurement: No restrictions on U.S. procured inspectable or non-inspectable products/materials/equipment shipped to the site.

3. Local Random Procurement: Procure limited quantities of inspectable or non-inspectable products/materials/equipment randomly from local suppliers.

Repeated procurements of same items or from same supplier shall be limited.

Select quantity required from random chosen supply, and amounting to not more than 25 percent of supply available.

a. Local random procurement of project materials and equipment will be performed by minimum Secret cleared US citizen, only be used on a limited basis, and will comply with DS regulations.

b. The selection of a vendor for specific materials shall be made from at least three vendors capable of providing the necessary materials and/or equipment. One vendor from the list shall be selected without referral or prior notification.

4. Local Unrestricted Procurement: Procure raw materials locally and without security restrictions on handling and storage; these are subject to Government's reasonable inspection and requirement for random daily selections in use.

a. Water, and other bulk-contained fluid/gas products.

07/01/2026 CONSTRUCTION SECURITY 01 11 50 - 4

UNCLASSIFIED

b. Temporary materials and services, including scaffolding and concrete formwork.

c. The ingredients and premixing of poured-in-place concrete, excluding reinforcing steel.

d. Sand, gravel, crushed stone, mortar, plaster, stucco, grout, and similar work.

D. Storage Procedures:

1. Location and locked control of storage and staging area belongs exclusively to

SSM.

2. Place incoming products in staging area, and immediately inspect selected items for signs of tampering or alteration before placing in storage or other SECURE areas as designated by SSM.

3.06 INSPECTIONS:

A. Government reserves the right to require suspension of work where introduction or attempted introduction of unauthorized materials into the work has been detected. At

Government's option and direction, Contractor is responsible for costs and time losses associated with rectification of work to correct such unauthorized actions.

B. The use of photographic equipment and taking of photographs is restricted on and nearby

Project Site. Request permission from the RSO to carry equipment on-site and take photographs.

06.01.2026 TEMPORARY FACILITIES AND CONTROLS 01500 - 1

SECTION 01500 TEMPORARY FACILITIES AND CONTROLS

PART ONE - GENERAL

1.01 STORAGE OF MATERIALS:

A. Do not use building interiors as storage facility.

B. Store materials on site and roof top. Stored materials shall be available for inspection by

Owner at all times.

C. Cover and protect materials subject to damage by weather, including during transit.

D. Provide suitable non combustibles, watertight/weather tight coverings for storage of materials subject to damage by weather. Covering shall be of sufficient size to hold materials required on site at one time. Pallets shall be raised at least 150mm above ground, on heavy joists or sleepers.

E. If temporary storage sheds are used, locate storage areas where directed, maintain in good condition, and remove storage sheds when so directed. Store flammable and volatile liquids in sealed containers located a minimum of 10 meters from existing buildings.

F. Provide additional storage at no cost to Owner in the event that additional storage area is required beyond that provided at project site.

G. Deliver material and equipment in manufacturer's original packaging with all tags and labels intact and legible. Handle and store material and equipment in such a manner as to avoid damage. Liquid products shall be delivered sealed, in original containers. Store roll goods in an upright position.

H. Proper storage of materials is the sole responsibility of Contractor. Protect all materials susceptible to moisture including, but not limited to, all roll goods, insulation, cant strip, wood, and plywood in dry, above ground, watertight storage. Keep all labels intact and legible, clearly showing the product, manufacturer, and other pertinent information.

I. Reject any materials becoming wet or damaged and remove from the jobsite immediately. Random samples of all materials susceptible to moisture will be taken at various stages of the installation to ensure no significant variations in moisture.

J. Distribute material, debris, and equipment over the roof deck to avoid damage to the structural deck. Not more than two weeks supply of material shall be stored on a roof at any given time. Place materials and equipment to be stored on the roof as nearly direct over structural members as can be determined. Secure equipment, material, and debris on the roof to prevent movement by wind or other elements. Contractor assumes full responsibility for loading on the structural deck or roofing materials during roof replacement operations.

1.02 SANITARY FACILITIES:

A. Provide adequate temporary chemical toilets at time Work is commenced.

B. Maintain facilities in compliance with applicable health laws and regulations. Keep clean and unobtrusive.

C. Upon completion of Work, remove these facilities and all traces thereof.

1.03 TEMPORARY WATER:

A. Make arrangements with Owner for water required for construction. Owner will pay for costs of water.

B. Provide hoses for conveyance.

06.01.2026 TEMPORARY FACILITIES AND CONTROLS 01500 - 2

1.04 TEMPORARY ELECTRICAL ENERGY:

A. Make arrangements with Owner for temporary electrical service for completion of the

Work. Owner will pay energy charges for temporary power and lighting.

B. Provide all necessary temporary wiring (in conduit if requested by Owner), extensions, and temporary lighting devices.

C. Provide necessary provisions to avoid disruptions to Owner's electrical service and daily operations.

1.05 TEMPORARY LADDERS, SCAFFOLDS, STAIRS AND HOISTS:

A. Furnish and maintain temporary ramps, scaffolds, hoists, or chutes as required for proper execution of Work.

B. Such apparatus, equipment, and construction/installation shall meet requirements of applicable federal, state, and local safety and labor laws.

C. Temporary Stair and Scaffold:

1. In addition to daily roof access from ladders or man-lifts, Contractor may provide perimeter scaffolding to access the roof, debris removal, material handling, and to protect building access entrances from the work area(s).

Provide scaffold, stairs, platforms, and barricades constructed of suitable materials.

2. Scaffold shall not be allowed to encompass entire building perimeter at one time. Erection of scaffold in one or two different locations or sections shall be sequenced and phased corresponding to the Contractor's roof area schedule.

3. Scaffold structure shall be constructed with anti-climb barricades to three (3) meters from grade. Anti-climb elements shall be secured to prevent displacement during work, and shall include a lockable access doorway(s).

Provide suitable exterior finish on side exposed to public.

1.06 GUARDRAILS, BARRICADES, AND TEMPORARY COVERINGS:

A. Temporary Barricades:

1. Provide and erect barricades as necessary at front entrance and two rear entrances to protect ground personnel, employees, passersby, etc., from hazards resulting from the Work during construction operation.

2. Prevent public access to construction activities, equipment, and storage areas using warning tape and/or fencing.

B. Provide barricades as required to protect natural resources, site improvements, existing property, adjacent property, and passers by.

C. Where pedestrian traffic is through or adjacent to work areas, provide necessary guardrails and barricades to protect pedestrians and to prevent pedestrian access to

Work areas.

D. Provide suitable temporary watertight coverings over windows and roof openings as required to protect interior equipment from inclement weather.

E. Provide suitable protection for stairs, elevator, and/or walls and floors in areas used for contractor roof access.

F. Provide temporary 2m (6 foot) chain link fence around kettle and setup areas.

G. Remove stairs, scaffold, guardrails and barricades at completion of construction.

1.07 PROTECTION:

A. Maintain bench marks, monuments, and other reference points. If disturbed or destroyed, replace as directed.

06.01.2026 TEMPORARY FACILITIES AND CONTROLS 01500 - 3

B. Protect existing adjacent streets, sidewalks, curbs, buildings, and property including trees, lawns, and plants.

1.08 TEMPORARY FIRE PROTECTION:

A. During construction, Contractor and his subcontractors and sub subcontractors and their agents and employees shall comply with fire safety practices as outlined in NFPA

Pamphlet 241 and local fire protection codes, and in addition shall:

1. Provide following stored pressure extinguishers during entire construction period:

a. One U.L. rating 4A-60B:C dry chemical fire extinguisher.

b. One U.L. rating 2A 4 liter water fire extinguisher.

c. One U.L. rating 10B:C carbon dioxide fire extinguisher with horn and hose assembly.

2. Provide fire extinguishers together in each of following areas:

a. Each 300 square meters of work area or fraction thereof.

b. Each temporary structure including construction office and storage and tool and workshop sheds.

3. Contractor's superintendent or other assistant superintendents shall be appointed as project fire warden for entire construction period.

4. Train workmen in proper use of each type fire extinguisher.

5. Post telephone number of fire department, specific information regarding location of on-site firefighting equipment, and procedures to be followed in event of fire.

6. Maintain free access at all times to fire extinguisher equipment, street fire hydrants, and outside connections for standpipe hose systems.

7. Maintain all exit facilities and access thereto, free of material and other obstructions.

1.09 EMPLOYEE CONTROL:

A. Do not allow construction employees to enter Owner-occupied areas. Maintain construction traffic in designated access routes.

1.10 LEAK (WATER) DAMAGE CONTROL:

A. In the event of rain during roof replacement construction operations, immediately inspect interior of building for leaks. Coordinate with Owner for access to building.

B. Continue to inspect building on a regular basis until rain ceases.

C. If leaks are discovered during rains, assist Owner to immediately cover and protect equipment and finishes located within building interior with fire retardant sheeting in the area of the leak.

D. Contractor is to be aware of the potential for roof leaks on the existing roof. As a result, Contractor is to take necessary precautions to prevent damage to the existing roof.

Damage to the existing roof that could result in roof leaks is to be repaired on a daily basis by Contractor. Perform emergency repairs on roofing to stop leaks.

1.11 CLEANING DURING CONSTRUCTION:

A. Oversee cleaning and ensure that building and grounds are maintained free from accumulations of waste materials and rubbish.

B. Sprinkle dusty debris with very fine water mist to control accumulation of dust. Do not use water in quantity so as to puddle.

06.01.2026 TEMPORARY FACILITIES AND CONTROLS 01500 - 4

C. At not less than every day during progress of work, clean up work areas and access areas and dispose of waste materials, rubbish, and debris.

D. Lower waste materials in a controlled manner with as few handlings as possible. Do not drop or throw materials from heights.

E. At Contractor's option, on-site dump containers may be used for collection of waste materials, rubbish, and debris. Locate containers a minimum of 10 meter (30 feet) away from building entrances at a location acceptable to Owner. If used, remove containers when filled. Keep streets and access to site free of rubbish and debris.

F. Remove waste materials, rubbish, and debris from site and legally dispose of at public or private dumping areas off Owner's property.

1.12 FINAL CLEANING:

A. Employ skilled workmen for final cleaning.

B. Remove grease, mastics, adhesives, dust, dirt, stains, labels, fingerprints, and other foreign materials from sight exposed interior and exterior surfaces.

C. Repair, patch, and touch-up marred surfaces to match adjacent finishes.

D. Broom clean paved surfaces; rake clean other surfaces of grounds. Power wash or utilize other acceptable method to remove contaminations on paved surfaces due to work activities.

E. Clean building areas affected by work activities.

F. Prior to final completion or Owner occupancy, conduct an inspection of sight exposed interior and exterior surfaces and all work areas to verify that entire Work area is clean.

PART TWO - PRODUCTS

Not Used.

PART THREE - EXECUTION

06.01.2026 ROOF CONSTRUCTION SAFETY 01535 - 1

SECTION 01535 – ROOF CONSTRUCTION SAFETY

PART ONE - GENERAL

1.01 SUMMARY

A. The Contractor is responsible and shall continue management and implementation of a safety and health program throughout construction.

B. The Contracting Officer and the Post Occupational Safety and Health Officer [POSHO] reserve the right to suspend work when and where Contractor's safety and health program is considered to be operating in an inadequate or non-complying manner.

1.02 REGULATIONS AND STANDARDS

A. Governing regulations: Latest edition of U.S. Army Corps of Engineers (COE) Safety and

Health Requirements Manual, EM 385-1-1

1.03 SUBMITTALS

A. Construction Accident Prevention Plan (CAPP) is a job site specific safety and health policy and program management document. Submit a CAPP to ensure safety of all persons at the site in event of an emergency.

B. Management Commitment: Provide introductory policy statement signed by senior officers of design/build firm stating that implementation and management of the CAPP has full cooperation and support of management.

C. The CAPP shall include the following:

1. Statement of safety and health policy.

2. Administrative responsibilities for implementing the plan.

3. Identification of personnel responsible for accident prevention.

4. Plans for hazard communication, and continued safety and health training.

5. Provisions for inspections of work sites, materials, and equipment.

6. Emergency response capabilities to minimize consequences of accidents.

7. Public safety requirements.

1.04 QUALITY ASSURANCE

A. Safety and Health Program Manager:

1. Appoint a manager whose duties shall include effective implementation, coordination, and enforcement of CAPP.

2. The manager shall be qualified to anticipate, identify, evaluate, and implement corrective action in relation to potential safety and health hazards and dangerous exposures for accident prevention.

3. The manager shall meet with the POSHO and Owner’s representative to discuss site specific safety and health issues.

B. Inspections:

1. Provide for frequent safety, health, and housekeeping inspections conducted by the Safety and Health Program Manager, temporary structures, fabrication shops, material, machinery, and equipment.

2. POSHO or Quality Assurance Inspectors, as part of their QA responsibilities, shall conduct and document daily safety, health, and housekeeping inspections.

06.01.2026 ROOF CONSTRUCTION SAFETY 01535 - 2

C. Toolbox Meetings: Hold safety meetings once each week. Require attendance by all laborer, and supervisors; include those of separate contractors. Contractor shall consider the following checklist:

1. Who is trained in CPR

2. Level of local hospital services

3. Do local doctors speak English

4. Type of emergency vehicles and distances

5. Are cell phones or radios available

6. Level of embassy doctor or nurse services

7. Family contact names and telephone numbers for all crew

PART TWO - PRODUCTS

2.01 TOOLS, EQUIPMENT, AND MACHINERY

A. Quality: Hand tools, power tools, equipment, machinery, materials, and personal protective apparatus shall be of manufacture listed by U.S. or internationally recognized testing laboratory for specific application for which they are to be used. They shall be quality products recognized for professional construction use, applications, and work practices.

B. Scaffolding: Shall be a standard tubular frame and clamp system manufactured and tested according to international standards. The Scaffold system shall include the scaffold manufacturers integrated access stairway sections, handrails, toe boards and walking platforms.

C Safe Clearance Procedure: Prior to initial use, and periodically thereafter at times of continued use, provide inspections of construction tools, equipment, and machinery.

Do not permit continued use of tools, equipment, and machinery that are not in good condition.

D. Fall Protection: On unprotected sides of the building edge provide workers with warning lines, guardrail, safety net or personal fall arrest systems or a combination of safety monitoring systems.

C. Hazardous work shall be brought to the attention of the QAI and POSHO prior to commencing the work.

1. Hot Work: Includes all work that results in open flame such as welding, cutting, brazing, and burning. The Contractor shall provide effective fire protection and prevention at all times during such operations.

2. Confined Space: Work in enclosed areas such as sewers, vaults, vessels, manholes, pits, etc.

3. Internal Combustion: The use of cranes, forklifts, hoists, or generators powered by petroleum fuel when used on or near the building.

4. Explosive Actuated Tools: These include powder charged tools used for fastening purposes.

PART THREE - EXECUTION

Not Used

06.01.2026 CONTRACT CLOSEOUT 01700 - 1

SECTION 01700 CONTRACT CLOSEOUT

PART ONE - GENERAL

1.01 GENERAL:

A. Comply with requirements stated in Conditions of the Contract and in Specifications for administrative procedures in closing out the Work.

1.02 SUBSTANTIAL COMPLETION:

A. Contractor shall submit written request to the Contracting Officer’s Representative

[COR] stating the proposed date of Substantial Completion and schedule Final

Inspection.

B. Written certification shall include:

1. Contract Documents have been reviewed.

2. Project has been inspected for compliance with Contract Documents.

3. Work has been completed in accordance with Contract Documents.

4. Equipment and systems have been tested in presence of Owner's

Representative and are operational.

5. Project is complete and ready for final inspection.

C. Quality Assurance Inspector or Embassy Facilities Manager will make a pre-inspection after notification. Should the work not be complete, they will issue an inspection list to

Contractor with noted items requiring further consideration.

1.03 FINAL INSPECTION:

A. Contracting Officer’s Representative will make final inspection after notification from

Contractor.

B. Should COR consider Work complete in accordance with requirements of Contract

Documents, he will request Contractor to begin Final Clean-up and Project Closeout submittals.

C. Should COR consider Work not complete:

1. Contractor shall take immediate steps to remedy the stated deficiencies and submit initialed inspection list to the COR certifying Work is complete.

2. COR will re-inspect Work.

1.04 REINSPECTING COSTS:

A. Should the Contracting Officer’s Representative be required to perform subsequent inspections of the Work due to the failure of the Contractor to correct deficient work, the additional services will be deducted from the final payment to Contractor.

1.05 WARRANTY/GUARANTEE:

A. Submit original and duplicate copies of both Contractor's Warranty and Manufacturer's

Guarantee for review. After review, Contracting Officer’s Representative shall approve final pay application upon receipt of both Contractor's Warranty and Manufacturer's

Guarantee.

1.06 EVIDENCE OF PAYMENTS AND RELEASE OF LIENS:

A. Contractor’s Release and Waiver of Liens:

1. Contractor's Waiver of Liens.

06.01.2026 CONTRACT CLOSEOUT 01700 - 2

2. Separate waivers of liens for subcontractors, suppliers, and others with lien rights against property of Owner, together with complete list of those parties.

3. Consent of Surety

B. All submittals shall be notarized and sealed before delivery to the COR.

1.08 FINAL ADJUSTMENT OF ACCOUNTS:

A. Submit final statement of accounting to the COR.

B. Statement shall reflect all adjustments.

1. Original Contract Sum.

2. Additions and Deductions resulting from:

a. Previous Change Orders.

b. Deductions for uncorrected Work.

c. Deductions for Reinspection Payments.

3. Total Contract Sum, as adjusted.

4. Previous payments.

5. Sum remaining due.

1.09 FINAL APPLICATION FOR PAYMENT:

A. The Contractor shall submit one copy of all payment invoices, with the appropriate backup documents to the COR. The Contractor shall submit receipts for all allowance costs and reimbursable expenses incurred. The COR also will determine if billed services have been satisfactorily performed and if expenses billed are correct. If it is determined that the amount billed is incorrect, the COR will within seven days, request the

Contractor to submit a revised invoice.

B. Final payment will not be approved or released until receipt of proper close-out documents.

PART TWO - PRODUCTS

Not Used.

PART THREE - EXECUTION

06.01.2026 CONTRACT CLOSEOUT 01700 - 3

06.01.2026 REMOVALS AND RENOVATION WORK 02072 - 1

SECTION 02072 - REMOVALS AND RENOVATION WORK

PART ONE - GENERAL

1.01 SECTION INCLUDES:

A. Removal of existing roofing, insulation, flashing, and sheet metal.

B. Required minor deck repair or replacement for roof repair work.

C. Modification of existing roof penetrations, equipment supports or curbs, pitch pans, reglets, piping, and electrical service to provide proper flashing height and flashing detail.

D. All other miscellaneous and incidental work required to install complete roofing system as specified and to obtain specified manufacturer's warranty.

1.02 PROJECT CONDITIONS:

A. Environmental Requirements:

1. Do not remove existing roofing and flashing in inclement weather or when rain is predicted with 30 percent possibility.

2. When ambient temperature is below 15 degrees Celsius (60 degrees

Fahrenheit), expose only enough cement and adhesive required within four-hour period.

3. Do not expose membrane and accessories to constant temperature in excess of

82 degrees Celsius (180 degrees Fahrenheit).

B. Emergency Equipment: Maintain on-site materials necessary to apply emergency temporary seal in event of sudden storms or inclement weather.

1.03 SEQUENCING AND SCHEDULING:

A. Sequence removals and renovation with sequence of new work to maintain facility in dry, watertight condition.

B. Coordinate roof work so that no more existing items are removed in one day than can be replaced with new roofing work in same day.

PART TWO - PRODUCTS

2.01 MATERIALS:

A. Wood Treatment: Pressure preservative treated in accordance with AWPA C2, C9 standards, Ground Contact using Chromated Copper Arsenate (CCA) at 0.1kg per 0.03cm

(0.40 pounds per cubic foot) wood. Preservatives shall be compatible with roof membrane.

B. Lumber (Members, Nailers, and Blocking):

1. Standard Grade Fir or No. 2 Southern Yellow Pine bearing UL label. Size shall be appropriate for application, minimum 50mm (2 inch) (nominal) thickness.

2. Complying with American Lumber Standards of manufacturer's association under whose rules lumber is produced.

3. Marked with mill identification.

4. Moisture Content: 19 percent maximum at time of installation.

C. Plywood: Minimum 19mm (3/4-inch) APA rated sheathing, EXP 1 or "CDX", fire rated, bearing APA trademark.

06.01.2026 REMOVALS AND RENOVATION WORK 02072 - 2

D. Fasteners:

1. Wood Substrate:

a. Securement of metal flanged items shall be nails, No. 10 gauge, galvanized steel wire with 10mm (13/32-inch) diameter head and ring shank such as No. 3255 by Dickson Weatherproof Nail Co. (800/572

9351).

b. Securement of wood to wood shall be nails, No. 9 gauge, galvanized steel wire nail with ring shank and 8mm (5/16-inch) diameter head such as No. 3055 by Dickson Weatherproof Nail Co. (800/572-9351); length required to provide 25mm (1-inch) penetration minimum into substrate.

c. Securement of exposed items to wood substrate shall be nails, No. 10 gauge, galvanized steel wire nail with 9mm (3/8-inch) diameter head, ring shank, and EPDM rubber washer such as No. 955 by Dickson

Weatherproof Nail Co. (800/572 9351); length required to provide

25mm (1-inch) penetration minimum into substrate.

d. Fasteners for securing roofing materials to wood substrate shall be a hardened steel nail with a 25mm (1-inch) diameter round head and ring shank; length to provide 25mm (1-inch) penetration into substrate, as manufactured by Simplex Nail Co.

e. Fasteners for securing steel to wood substrate shall be steel wood screw with steel washer and integral rubber seal.

2. Concrete Substrate:

a. Fasteners for securing sheet metal items to concrete substrate shall be a pre-assembled drive anchor with a stainless steel drive screw, a lead/zinc alloy expansion anchor body (6mm [1/4-inch] diameter, 38mm

[1-1/2-inch] length) and a stainless steel washer with integral rubber seal (1-1/8-inch diameter) such as "Zamac Hammer-Screw" as manufactured by Powers Rawl.

b. Fasteners for securing wood blocking to concrete substrate shall be sleeved stud expansion bolt, 13mm (1/2-inch) diameter (minimum), with 19mm (3/4-inch) diameter steel washer such as "Kwik Bolt II" by

Hilti.

3. Masonry Substrate:

a. Fasteners for securing wood to solid masonry shall be galvanized steel expansion anchor, 9mm (3/8-inch) diameter (minimum), with 19mm

(3/4-inch) diameter steel washer such as "Countersunk Kwik Bolt II" by

Hilti.

b. Fasteners for securing wood to hollow base masonry shall be 9mm (3/8 inch) diameter (minimum), threaded rod, with 9mm (3/4-inch) diameter washer, nut, and screen tube such as "HIT C 20 Adhesive Anchor" by

Hilti.

c. Fasteners for securing sheet metal items to concrete substrate shall be a pre-assembled drive anchor with a stainless steel drive screw, a lead/zinc alloy expansion anchor body (6mm [1/4-inch] diameter, 38mm

[1-1/2-inch] length) and a stainless steel washer with integral rubber seal (1-1/8-inch diameter) such as "Zamac Hammer-Screw" as manufactured by Powers Rawl.

06.01.2026 REMOVALS AND RENOVATION WORK 02072 - 3

4. Steel Substrate:

a. Fasteners for securing wood to steel substrate shall be self-drilling coated heavy duty screw, 6mm (1/4-inch) diameter (minimum), with

16mm (5/8 inch) diameter washer such as "#14 Heavy Duty Screw" by

Olympic.

b. Fasteners for securing steel to steel substrate shall be self tapping steel screw with steel washer and integral rubber seal.

5. Plywood Clip: 18 gauge galvanized steel H-clip such as "PSCL Plywood Sheathing

Clip" by Simpson Strong-Tie Co., Inc.

E. Rust Inhibitive Primer: 100 percent acrylic resin primer such as “Metalclad Interior-

Exterior Acrylic Latex Flat Primer & Finish #41702”, Devoe & Raynolds Co. [Note: Custom

Color]

F. Asphalt Primer: Quick-drying type, ASTM D 41.

G. Equipment Supports: Pre-manufactured supports constructed from 47mm by 47mm (1

7/8 inch by 1 7/8 inch) 12 gauge channel steel with rectangular support bases and steel angle supports. Provide threaded rod to connect supports such as "Type RTU-20" as manufactured by Portable Pipe Hangers, Houston, Texas (800/797 6585).

H. Pipe Hanger: Pre-manufactured pipe supports constructed from 1-7/8-inch by 1 7/8-inch (47mm by 47mm) 12 gauge channel steel with rectangular support bases. Use roller pipe hangers for supporting steel pipes and clevice (saddle) type hanger for supporting insulated pipe such as Models “Type PS-1-2”, “Type PSE-2-2”, and “Type PS-E-Custom” as manufactured by Portable Pipe Hangers, Houston, Texas (800/797-6585).

I. Duct Support: Pre-manufactured supports constructed from 1-7/8-inch by 1-7/8-inch

(47mm by 47mm) 12 gauge steel with rectangular molded plastic/rubber support bases such as Model “Type PPH-D” as manufactured by Portable Pipe Hangers, Houston, Texas

(800/797-6585).

J. Non-shrink Grout: Nonshrink, noncorrosive, grouting compound; CRD-C-621, Type D, such as “Sonogrout 10K”, Sonneborn Building Products, or approved equal.

K. Deck Repair Materials - Lightweight Insulating Concrete and Poured Gypsum Repair

Material: Quick-setting, cementitious-based material such as "Pyrofil", as manufactured by U.S. Gypsum Co. or “Strong Seal Quick Leveling Roof Material” by The Strong Co., Inc.

(800/982-8009).

L. Roof Drain Grates: Josum or equal, Cast Iron to match retaining ring sizes and lock-in attachment fit.

PART THREE - EXECUTION

3.01 EXAMINATION:

A. Examine existing building and existing roofing to determine existing physical conditions that affect removal of existing roofing and installation of new roofing.

B. Verify that required barricades and other protective measures are in place.

3.02 PREPARATION:

A. Take measures to maintain watertight conditions during term of Contract.

B. Install interior protection and dust partitions where deck penetrations shall be removed or replaced.

C. Protect adjacent surfaces.

06.01.2026 REMOVALS AND RENOVATION WORK 02072 - 4

D. Roof Drains:

1. Examine existing drain lines for debris or blockage.

2. Clean drains and drain lines, removing debris, excessive bitumen, or aggregate.

Flush with water to ensure that drains flow freely.

3. Cap drains with drain plugs during daily operations.

4. Remove plugs after daily clean-up and prior to onset of rainfall.

3.03 REMOVAL OPERATIONS:

A. Execute demolition in careful and orderly manner with least possible disturbance or damage to adjoining surfaces and structure.

B. Avoid excessive vibrations in demolition procedures that would be transmitted through existing structure and finish materials.

C. Roof Removal:

1. Remove existing roofing, insulation, and flashings; abandoned and obsolete equipment; pitch pans, vents, curbs, and other such items; and sheet metal down to roof deck.

2. Trim existing counterflashing as required for installation of new materials.

3. Do not stockpile debris on roof surface. Promptly dispose of obsolete equipment and debris at authorized disposal site each day. Use chutes to transfer debris from roof surface to dumpsters.

4. Provide protective method, such as plywood set on minimum 25mm (1 inch)

EPS insulation, when hauling debris over existing roof membrane.

3.04 RENOVATION WORK:

A. Prepare substrates in accordance with roofing manufacturer's recommendations.

B. Decking:

1. Install new decking of like type, weight, gauge, and dimensions to provide suitable substrate in areas of deteriorated deck or where penetrations through deck are removed.

2. Remove and dispose of existing lightweight concrete and/or other granular, cementitious fill materials down to the structural concrete deck.

3. Concrete Decking:

a. Perform repairs to concrete deck in accordance with patching material manufacturer's recommendations.

b. Apply rust inhibitor to exposed rebar.

c. Remove loose and defective concrete.

d. Patch spalled areas and exposed rebar areas with non-shrink grout.

e. Trowel smooth the properly placed grout.

f. Seal cracks and/or joints in concrete deck with modified bitumen membrane prior…