Attachment 3 - Specifications_BBVC Roof Replacement.pdf

Project Specifications

Begich, Boggs Visitor Center Roof Replacement

US FOREST SERVICE

CHUGACH NATIONAL FOREST

December 18, 2025

SPECIFICATIONS INDEX

SECTION TITLE

012500 Substitution Procedures 013100 Project Management and Coordination 013300 Submittal Procedures 014000 Quality Requirements

024119 Selective Demolition 072220 Roof Boards 075323 EPDM Roofing 076200 Sheet Metal Flashing and Trim 077200 Roof Accessories 221423 Storm Drainage Piping Specialties 260519 Low-Voltage Electrical Power Conductors and Cables 260526 Grounding and Bonding for Electrical Systems 260529 Hangers and Supports for Electrical Systems 260533 Raceways and Boxes for Electrical Systems 260553 Identification for Electrical Systems

Begich, Boggs Visitor Center Roof Replacement 11/2025

SUBSTITUTION PROCEDURES 012500 - 1

SUBSTITUTION PROCEDURES

SECTION 012500

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes administrative and procedural requirements for substitutions after contract award.

1.2 DEFINITIONS

A. Substitutions: Changes in products, materials, and equipment from those required by the Contract Documents and proposed by Contractor.

1. Substitutions for Cause: Changes proposed by Contractor that are required due to changed Project conditions, such as unavailability of product, regulatory changes, or unavailability of required warranty terms.

2. Substitutions for Convenience: Changes proposed by Contractor or Owner that are not required in order to meet other Project requirements but may offer advantage to Contractor or Owner.

1.3 ACTION SUBMITTALS

A. Substitution Requests: Submit electronic copies of requests for consideration. Identify product or fabrication or installation method to be replaced. Include Specification Section number and title and Drawing numbers and titles.

1. Documentation: Show compliance with requirements for substitutions and the following, as applicable:

a. Statement indicating why specified product or fabrication or installation method cannot be provided, if applicable.

b. Coordination of information, including a list of changes or revisions needed to other parts of the Work and to construction performed by Owner and separate contractors that will be necessary to accommodate proposed substitution.

c. Detailed comparison of significant qualities of proposed substitutions with those of the Work specified. Include annotated copy of applicable Specification Section.

Significant qualities may include attributes, such as performance, weight, size, durability, visual effect, sustainable design characteristics, warranties, and specific features and requirements indicated. Indicate deviations, if any, from the Work specified.

d. Product Data, including drawings and descriptions of products and fabrication and installation procedures.

e. Samples, where applicable or requested.

f. Certificates and qualification data, where applicable or requested.

g. List of similar installations for completed projects, with project names and addresses as well as names and addresses of architects and owners.

SUBSTITUTION PROCEDURES 012500 - 2

h. Material test reports from a qualified testing agency, indicating and interpreting test results for compliance with requirements indicated.

i. Detailed comparison of Contractor's construction schedule using proposed substitutions with products specified for the Work, including effect on the overall Contract Time. If specified product or method of construction cannot be provided within the Contract Time, include letter from manufacturer, on manufacturer's letterhead, stating date of receipt of purchase order, lack of availability, or delays in delivery.

j. Cost information, including a proposal of change, if any, in the Contract Cost.

k. Contractor's certification that proposed substitution complies with requirements in the Contract Documents, except as indicated in substitution request, is compatible with related materials and is appropriate for applications indicated.

l. Contractor's waiver of rights to additional payment or time that may subsequently become necessary because of failure of proposed substitution to produce indicated results.

2. Owner's Action: If necessary, the CO will request additional information or documentation for evaluation within seven days of receipt of a request for substitution.

The CO will notify Contractor of acceptance or rejection of proposed substitution within 14 days of receipt of request, or seven days of receipt of additional information or documentation, whichever is later.

a. Forms of Acceptance: Change Order, Construction Change Directive, or CO's Supplemental Instructions for minor changes in the Work.

b. Use product specified if the CO does not issue a decision on use of a proposed substitution within time allocated.

1.4 QUALITY ASSURANCE

A. Compatibility of Substitutions: Investigate and document compatibility of proposed substitution with related products and materials. Engage a qualified testing agency to perform compatibility tests recommended by manufacturers.

1.5 PROCEDURES

A. Coordination: Revise or adjust affected work as necessary to integrate work of the approved substitutions.

1.6 SUBSTITUTIONS

A. Substitutions for Cause: Submit requests for substitution immediately on discovery of need for change, but not later than 15 days prior to time required for preparation and review of related submittals.

1. Conditions: The CO will consider Contractor's request for substitution when the following conditions are satisfied. If the following conditions are not satisfied, the CO will return requests without action, except to record noncompliance with these requirements:

SUBSTITUTION PROCEDURES 012500 - 3

a. Requested substitution is consistent with the Contract Documents and will produce indicated results.

b. Substitution request is fully documented and properly submitted IAW Section 1.3.A.

c. Requested substitution will not adversely affect Contractor's construction schedule.

d. Requested substitution is compatible with other portions of the Work.

e. Requested substitution has been coordinated with other portions of the Work.

f. Requested substitution provides specified warranty.

g. If requested substitution involves more than one contractor, requested substitution has been coordinated with other portions of the Work, is uniform and consistent, is compatible with other products, and is acceptable to all contractors involved.

B. Substitutions for Convenience: The CO will consider requests for substitution if received within 60 days of the Notice to Proceed, and no less than 15 days prior to the specific product submittal being due. Requests received after that time may be considered or rejected at discretion of the CO.

1. Conditions: The CO will consider Contractor's request for substitution when the following conditions are satisfied. If the following conditions are not satisfied, the CO will return requests without action, except to record noncompliance with these requirements. Approval for a substitution, even with these requirements being satisfied, is at the discretion of the CO:

a. Requested substitution offers the Government a substantial advantage in cost, time, energy conservation, or other considerations, after deducting additional responsibilities the Government must assume. The Government's additional responsibilities may include increased cost of construction or design, and similar considerations.

b. Requested substitution does not require extensive revisions to the Contract Documents.

c. Requested substitution is consistent with the Contract Documents and will produce indicated results.

d. Substitution request is fully documented and properly submitted IAW Section 1.3.A.

e. Requested substitution will not adversely affect Contractor's construction schedule.

f. Requested substitution is compatible with other portions of the Work.

g. Requested substitution has been coordinated with other portions of the Work.

h. Requested substitution provides specified warranty.

i. If requested substitution involves more than one contractor, requested substitution has been coordinated with other portions of the Work, is uniform and consistent, is compatible with other products, and is acceptable to all contractors involved.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 012500

PROJECT MANAGEMENT AND COORDINATION 013100 - 1

PROJECT MANAGEMENT AND COORDINATION

SECTION 013100

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes administrative provisions for coordinating construction operations on Project including, but not limited to, the following:

1. General coordination procedures.

2. RFIs.

3. Project meetings.

B. Each contractor shall participate in coordination requirements. Certain areas of responsibility are assigned to a specific contractor.

1.2 DEFINITIONS

A. RFI: Request from Contracting Officer (CO), or Contractor seeking information required by or clarifications of the Contract Documents.

1.3 INFORMATIONAL SUBMITTALS

A. Subcontractor List: Prepare a written summary identifying individuals or firms proposed for each portion of the Work, including those who are to furnish products or equipment fabricated to a special design, as described in the SOW Section 5.0. Include the following information in tabular form:

1. Name, address, telephone number, and email address of entity performing subcontract or supplying products.

2. Number and title of related Specification Section(s) covered by subcontract.

B. Key Personnel Information: As described in the SOW Section 5.0, submit a list of key personnel assignments, including superintendent and other personnel in attendance at Project site. Identify individuals and their duties and responsibilities; list addresses and telephone numbers, including home, office, and cellular telephone numbers and e-mail addresses. Provide names, addresses, and telephone numbers of individuals assigned as alternates in the absence of individuals assigned to Project.

1.4 GENERAL COORDINATION PROCEDURES

A. Coordination: Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work. Coordinate construction operations included in different Sections that depend on each other for proper installation, connection, and operation.

PROJECT MANAGEMENT AND COORDINATION 013100 - 2

1. Schedule construction operations in sequence required to obtain the best results where installation of one part of the Work depends on installation of other components, before or after its own installation.

2. Coordinate installation of different components to ensure maximum performance and accessibility for required maintenance, service, and repair.

3. Make adequate provisions to accommodate items scheduled for later installation.

1.5 REQUESTS FOR INFORMATION (RFIs)

A. General: Immediately upon discovery of the need for additional information, clarification, or interpretation of the Contract Documents, Contractor shall prepare and submit an RFI in the form specified.

1. CO will return without response those RFIs submitted by other entities controlled by Contractor.

2. Coordinate and submit RFIs in a prompt manner so as to avoid delays in Contractor's work or work of subcontractors.

B. Content of the RFI: Include a detailed, legible description of item needing information or interpretation and the following:

1. Project name.

2. Project/Contract number.

3. Name of Contractor.

4. Date.

5. Name of Contracting Officer.

6. RFI number, numbered sequentially.

7. RFI subject.

8. Specification Section number and title and related paragraphs, as appropriate.

9. Drawing number and detail references, as appropriate.

10. Field dimensions and conditions, as appropriate.

11. Contractor's suggested resolution. If Contractor's suggested resolution impacts the

Contract Time or Cost, Contractor shall state impact in the RFI.

12. Contractor's signature.

13. Attachments: Include sketches, descriptions, measurements, photos, Product Data, Shop

Drawings, coordination drawings, and other information necessary to fully describe items needing interpretation.

C. RFI Forms: Software-generated form with substantially the same content as indicated above, acceptable to the CO. Attachments shall be in Adobe Acrobat PDF format.

D. Contracting Officer's Action: CO will review each RFI, determine action required, and respond.

Allow seven working days for CO’s response for each RFI. RFIs received after 1:00 p.m. will be considered as received the following working day.

1. The following Contractor-generated RFIs will be returned without action:

a. Requests for approval of submittals.

b. Requests for approval of substitutions.

c. Requests for approval of Contractor's means and methods.

PROJECT MANAGEMENT AND COORDINATION 013100 - 3

d. Requests for coordination information already indicated in the Contract Documents.

e. Requests for adjustments in the Contract Time or the Contract Sum.

f. Requests for interpretation of CO’s actions on submittals.

g. Incomplete RFIs or inaccurately prepared RFIs.

2. CO’s action may include a request for additional information, in which case the CO’s time for response will date from time of receipt of additional information.

3. CO’s action on RFIs that may result in a change to the Contract Time or Cost may be eligible for Contractor to submit Change Proposal.

a. If Contractor believes the RFI response warrants change in the Contract Time or Cost, notify the CO in writing within five working days of receipt of the RFI response.

E. RFI Log: Prepare and maintain a tabular log of RFIs organized by the RFI number. Include the following:

1. Project name.

2. Name and address of Contractor.

3. Name and address of Contracting Officer.

4. RFI number including RFIs that were returned without action or withdrawn.

5. RFI description.

6. Date the RFI was submitted.

7. Date CO’s response was received.

F. On receipt of the CO’s action, update the RFI log and immediately distribute the RFI response to affected parties. Review response and notify the CO within seven days if Contractor disagrees with response.

1.6 PROJECT MEETINGS

A. General: Schedule and conduct meetings and conferences at Project site unless otherwise indicated.

B. Post Award/Pre-work Conference: The CO will schedule and conduct a Pre-work Conference before starting work on the contract, at a time convenient to the CO, but typically no later than 15 days after Award. The Notice to Proceed will typically be issued during or immediately following the Pre-work Conference.

1. Conduct the conference to review administrative responsibilities and personnel assignments.

2. Attendees: Authorized representatives of the CO and Government; Contractor and its authorized representatives. Participants at the conference shall be familiar with Project and authorized to conclude matters relating to the contract.

3. Agenda: Discuss items of significance that could affect administrative functions and contract requirements, including the following:

a. Distribution of the Contract Documents.

b. Responsibilities and personnel assignments.

PROJECT MANAGEMENT AND COORDINATION 013100 - 4

c. Lines of communications.

d. Submittal procedures.

e. Designation of key personnel and their duties.

f. Procedures for processing field decisions and Change Orders.

g. Procedures for RFIs.

h. Procedures for testing and inspecting.

i. Procedures for processing Payments and Invoices.

j. Tentative construction schedule.

k. Critical work sequencing and long lead items.

l. Phasing.

m. Use of premises and existing building.

n. Work restrictions.

o. Working hours.

4. Minutes: Entity responsible for conducting meeting will record and distribute meeting minutes.

C. Preconstruction Conference: The CO will schedule and conduct a Preconstruction Conference before starting work on site, at a time convenient to Owner and CO, but typically no later than 15 days prior to work commencing on site.

1. Conduct the conference to review on site work processes, procedures, and roles and responsibilities.

2. Attendees: Authorized representatives of the CO, Contractor and its superintendent;

major subcontractors; suppliers; and other concerned parties shall attend the conference.

Participants at the conference shall be familiar with Project and authorized to conclude matters relating to the Work.

3. Agenda: Review construction activities, including but not limited to the following:

a. Contract Documents.

b. Related RFIs.

c. Related Change Orders.

d. Deliveries.

e. Submittals.

f. Possible conflicts.

g. Time schedules.

h. Weather limitations.

i. Manufacturer's written instructions.

j. Warranty requirements.

k. Compatibility of materials.

l. Temporary facilities and controls.

m. Space and access limitations.

n. Testing and inspecting requirements.

o. Installation procedures.

p. Coordination with other work.

q. Protection of adjacent work.

r. Protection of construction and personnel.

4. Minutes: Entity responsible for conducting meeting will record and distribute meeting minutes.

PROJECT MANAGEMENT AND COORDINATION 013100 - 5

D. The Post Award and Preconstruction Conferences may be combined into one meeting at the discretion of the CO, dependent upon project execution timelines.

E. Progress Meetings: Conduct progress meetings at bi-weekly intervals, or as directed by the CO.

Meeting frequency will depend on the work status (on-site work, winter shutdown, etc) and adequacy of the submitted progress reports.

1. Attendees: In addition to the CO, each contractor, subcontractor, supplier, and other entity concerned with current progress or involved in planning, coordination, or performance of future activities shall be represented at these meetings. All participants at the meeting shall be familiar with Project and authorized to conclude matters relating to the Work.

2. Agenda: Review and correct or approve minutes of previous progress meeting. Review other items of significance that could affect progress. Include topics for discussion as appropriate to status of Project.

a. Contractor's Construction Schedule: Review progress since the last meeting.

Determine whether each activity is on time, ahead of schedule, or behind schedule, in relation to Contractor's construction schedule. Determine how construction behind schedule will be expedited; secure commitments from parties involved to do so. Discuss whether schedule revisions are required to ensure that current and subsequent activities will be completed within the Period of Performance.

b. Review present and future needs of each entity present, including the following:

1) Interface requirements.

2) Sequence of operations.

3) Status of submittals.

4) Deliveries.

5) Off-site fabrication.

6) Access.

7) Site use.

8) Temporary facilities and controls.

9) Progress cleaning.

10) Quality and work standards.

11) Status of correction of deficient items.

12) Field observations.

13) Status of RFIs.

14) Status of Change Orders.

15) Pending claims and disputes.

3. Minutes: Entity responsible for conducting the meeting will record and distribute the meeting minutes to each party present and to parties requiring information.

a. Schedule Updating: Revise Contractor's construction schedule after each progress meeting where revisions to the schedule have been made or recognized. Issue revised schedule concurrently with the report of each meeting.

PROJECT MANAGEMENT AND COORDINATION 013100 - 6

PART 2 - PRODUCTS (Not Used)

END OF SECTION 013100

SUBMITTAL PROCEDURES 013300 - 1

SUBMITTAL PROCEDURES

SECTION 013300

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.

1.2 SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

1. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

a. CO reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for resubmittals follows. Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Allow 10 workdays for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. If intermediate submittal is necessary, process it in same manner as initial submittal.

3. Allow 10 workdays for processing each resubmittal.

4. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

C. Identification: Place title block on each submittal for identification.

1. Include the following information on label for processing and recording action taken:

a. Project name.

b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. Other necessary identification.

D. Deviations: Highlight, encircle, or otherwise identify deviations from the Contract Documents on submittals.

SUBMITTAL PROCEDURES 013300 - 2

E. Use for Construction: Use only final submittals with mark indicating action taken by CO in connection with construction.

PART 2 - PRODUCTS

2.1 ACTION SUBMITTALS

A. General: Prepare and submit Action Submittals required by individual Specification Sections. Documents shall be submitted electronically to the CO and COR.

B. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

1. If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Shop Drawings, not as Product Data.

2. Mark which products and options are applicable.

3. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Manufacturer's catalog cuts.

e. Compliance with recognized trade association standards.

f. Compliance with recognized testing agency standards.

C. Shop Drawings: Prepare Project-specific information, drawn accurately to scale. Do not base Shop Drawings on reproductions of the Contract Documents or standard printed data.

1. Preparation: Include the following information, as applicable:

a. Dimensions.

b. Identification of products.

c. Fabrication and installation drawings.

d. Notation of dimensions established by field measurement.

D. Samples: Prepare physical units of materials or products, including the following:

1. Samples for Initial Selection: Submit manufacturer's color charts consisting of units or sections of units showing the full range of colors available.

2.2 INFORMATIONAL SUBMITTALS

A. General: Prepare and submit Informational Submittals required by other Specification Sections.

1. Certificates and Certifications: Provide a notarized/signed statement that includes signature of entity responsible for preparing certification. Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

SUBMITTAL PROCEDURES 013300 - 3

B. Manufacturer's Instructions: Prepare written or published information that documents manufacturer's recommendations, guidelines, and procedures for installing or operating a product or equipment. Include name of product and name, address, and telephone number of manufacturer.

PART 3 - EXECUTION

3.1 GENERAL

A. Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

END OF SECTION 01330

QUALITY REQUIREMENTS 014000 - 1

QUALITY REQUIREMENTS

SECTION 014000

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes administrative and procedural requirements for quality assurance and quality control.

B. Testing and inspection services are required to verify compliance with requirements specified or indicated. These services do not relieve Contractor of responsibility for compliance with the Contract Document requirements.

1. Specified tests, inspections, and related actions do not limit Contractor's other quality-assurance and quality-control procedures that facilitate compliance with the Contract Document requirements.

1.2 DEFINITIONS

A. Field Quality-Control Tests and Inspections: Tests and inspections that are performed on-site for installation of the Work and for completed Work.

B. Installer/Applicator/Erector: Contractor or another entity engaged by Contractor as an employee, Subcontractor, or Sub-subcontractor, to perform a particular construction operation, including installation, erection, application, assembly, and similar operations.

C. Quality-Assurance Services: Activities, actions, and procedures performed before and during execution of the Work to guard against defects and deficiencies and substantiate that proposed construction will comply with requirements.

D. Quality-Control Services: Tests, inspections, procedures, and related actions during and after execution of the Work to evaluate that actual products incorporated into the Work and completed construction comply with requirements. Contractor's quality-control services do not include contract administration activities performed by the Government.

E. Experienced: When used with an entity or individual, "experienced" means having successfully completed a minimum of five previous projects similar in nature, size, and extent to this Project;

being familiar with special requirements indicated; and having complied with requirements of authorities having jurisdiction. Additional experience requirements are identified in individual Specifications Sections for specific components of the Work.

1.3 CONFLICTING REQUIREMENTS

A. Referenced Standards: If compliance with two or more standards is specified and the standards establish different or conflicting requirements for minimum quantities or quality levels, comply with the most stringent requirement and notify the CO and COR of the conflict. Refer conflicting requirements that are different, but apparently equal, to the CO for a decision before proceeding.

QUALITY REQUIREMENTS 014000 - 2

B. Minimum Quantity or Quality Levels: The quantity or quality level shown or specified is the minimum provided or performed. The actual installation may comply exactly with the minimum quantity or quality specified, or it may exceed the minimum within reasonable limits. To comply with these requirements, indicated numeric values are minimum or maximum, as appropriate, for the context of requirements. Refer uncertainties to the CO for a decision before proceeding.

1.4 REPORTS AND DOCUMENTS

A. Manufacturer's Technical Representative's Field Reports: Prepare written information documenting manufacturer's technical representative's tests and inspections specified in other Sections. Include the following:

1. Name, address, and telephone number of technical representative making report.

2. Statement on condition of substrates and their acceptability for installation of product.

3. Statement that products at Project site comply with requirements.

4. Summary of installation procedures being followed, whether they comply with requirements and, if not, what corrective action was taken.

5. Results of operational and other tests and a statement of whether observed performance complies with requirements.

6. Statement whether conditions, products, and installation will affect warranty.

7. Other required items indicated in individual Specification Sections.

1.5 QUALITY ASSURANCE

A. Qualifications paragraphs in this article establish the minimum qualification levels required;

individual Specification Sections may specify additional requirements.

B. Manufacturer Qualifications: A firm experienced in manufacturing products or systems similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capacity to produce required units. As applicable, procure products from manufacturers able to meet qualification requirements, warranty requirements, and technical or factory-authorized service representative requirements.

C. Fabricator Qualifications: A firm experienced in producing products similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capacity to produce required units.

D. Installer Qualifications: A firm or individual experienced in installing, erecting, applying, or assembling work similar in material, design, and extent to that indicated for this Project, whose work has resulted in construction with a record of successful in-service performance.

E. Manufacturer's Technical Representative Qualifications: An authorized representative of manufacturer who is trained and approved by manufacturer to observe and inspect installation of manufacturer's products that are similar in material, design, and extent to those indicated for this Project.

QUALITY REQUIREMENTS 014000 - 3

1.6 QUALITY CONTROL

A. Owner Responsibilities: Where quality-control services are indicated as Owner's responsibility, Owner will engage a qualified testing agency to perform these services.

1. Costs for retesting and reinspecting construction that replaces or is necessitated by Work that failed to comply with the Contract Documents will be charged to Contractor.

B. Contractor Responsibilities: Tests and inspections not explicitly assigned to Owner are Contractor's responsibility. Perform additional quality-control activities, whether specified or not, to verify and document that the Work complies with requirements.

C. Retesting/Reinspecting: Regardless of whether original tests or inspections were Contractor's responsibility, provide quality-control services, including retesting and reinspecting, for construction that replaced Work that failed to comply with the Contract Documents.

D. Manufacturer's Field Services: Where indicated, engage a factory-authorized service representative to inspect field-assembled components and equipment installation, including service connections. Report results in writing as specified in Section 013300 "Submittal Procedures."

E. Manufacturer's Technical Services: Where indicated, engage a manufacturer's technical representative to observe and inspect the Work. Manufacturer's technical representative's services include participation in preinstallation conferences, examination of substrates and conditions, verification of materials, observation of Installer activities, inspection of completed portions of the Work, and submittal of written reports.

F. Coordination: Coordinate sequence of activities to accommodate required quality-assurance and quality-control services with a minimum of delay and to avoid necessity of removing and replacing construction to accommodate testing and inspection.

1. Schedule times for tests, inspections, obtaining samples, and similar activities.

PART 2 - PRODUCTS (Not Used)

END OF SECTION 014000

SELECTIVE DEMOLITION 024119 - 1

SELECTIVE DEMOLITION

SECTION 024119

PART 1 - GENERAL

1.1. SUMMARY

A. This Section includes demolition and removal of the following:

1. Removal of all roofing system materials scheduled for removal or replacement.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

1.3 SUBMITTALS

A. Demolition and Safety Plan

1. No later 30 days prior to on-site work commencing, the Contractor must submit a plan for managing on-site safety. On-site work cannot begin until this plan is approved by the CO. This plan shall outline demolition and safety requirements as described in these specifications. Additionally, it must describe the Contractor’s traffic control plans, hazard reduction strategies, visitor disruption minimization strategy, and plan to limit polyurethane overspray.

1.4 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain Government property, demolished materials shall become Contractor's property and shall be removed from National Forest System lands.

1.5 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI A10.6 and NFPA 241.

1.6 PROJECT CONDITIONS

A. Government will occupy buildings onsite during this construction. Conduct selective demolition to limit impact to Government operations onsite. Provide not less than 72 hours' notice to CO of activities that will affect Government operations.

1. The BBVC is open to the public starting Memorial Day weekend through early-mid September. If work is taking place on site during this time, there will be visitors from the

SELECTIVE DEMOLITION 024119 - 2

general public present. The contractor must limit impacts to the public and interruptions to the visitor center operations.

2. The contractor must make all reasonable efforts to eliminate hazards to include falling debris, wind blown debris, overspray of chemicals and adhesives, and any other hazard identified by the COR and/or CO. A detailed Demolition Plan must be submitted at least two weeks prior to demolition starting. The plan shall outline the contractor’s planned efforts to minimize disturbances and hazards.

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

1. If materials suspected of containing hazardous materials are encountered, do not disturb and immediately notify the Contracting Officer Representative (COR).

C. Storage or sale of removed items or materials on-site will not be permitted.

1.7 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials damaged during selective demolition, by methods and with materials so as not to void existing warranties.

PART 2 - PRODUCTS

2.1 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. If identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equals or surpasses that of existing materials.

3. Submit any deviations to the CO and COR for approval, prior to purchase and installation of new materials.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict.

Promptly submit a written report to CO.

SELECTIVE DEMOLITION 024119 - 3

3.2 PATCHING AND REPAIRS

A. General: Promptly repair damage to adjacent construction caused by selective demolition operations.

B. Repairs: Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

C. Finishes: Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

3.3 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government property and legally dispose of them.

END OF SECTION 024119

ROOF BOARDS 072220 - 1

ROOF BOARDS

SECTION 072220

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

Fiberglass-mat faced gypsum roof boards for application directly under roof membrane systems.

1.2 REFERENCES

A. ASTM International (ASTM):

1. ASTM C209 Standard Test Method for Cellulosic Fiber Insulating Board

2. ASTM C472 Standard Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete.

3. ASTM C473 Standard Test Methods for Physical Testing of Gypsum Panel Products.

4. ASTM C1177 Standard Specification for Glass Mat Gypsum Substrate for Use as

Sheathing.

5. ASTM D3273 Standard Test Method for Resistance to Growth of Mold on the Surface of

Interior Coatings in an Environmental Chamber.

6. ASTM E84 Standard Test Method for Surface Burning Characteristics of Building

Materials

7. ASTM E96 Standard Test Methods for Water Vapor Transmission of Materials.

8. ASTM E108 Standard Test Methods for Fire Tests of Roof Coverings

9. ASTM E136 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C.

10. ASTM E661 Standard Test Method for Performance of Wood and Wood-Based Floor and Roof Sheathing Under Concentrated Static and Impact Loads.

B. Underwriters Laboratories (UL): UL 790 Standard Test Methods for Fire Tests of Roof Coverings.

1.3 SUBMITTALS

A. Product Data and Installation Instructions: Submit manufacturer’s product data including installation instructions and substrate preparation recommendations.

1.4 QUALITY ASSURANCE

A. Inspection: Where applicable, allow for COR inspection and moisture testing and reporting prior to installation of roof boards.

1.5 DELIVERY, STORAGE, AND HANDLING

A. All components used in roofing systems, including roof boards, shall be protected from exposure to moisture before, during and after installation.

ROOF BOARDS 072220 - 2

B. Remove any plastic packaging from roof boards immediately upon receipt of delivery. Failure to remove plastic packaging may result in entrapment of condensation or moisture, which may cause application problems that are not the responsibility of manufacturer

C. Any protective, plastic factory packaging that is used to wrap roof boards for shipment is intended to provide temporary protection from moisture exposure during transit only and is not intended to provide protection during storage after delivery.

D. Roof boards stored outside shall be stored level and off the ground and protected by a waterproof covering. Provide means for air circulation around and under stored bundles of roof boards. Use adequate supports to keep the bundles flat, level, and dry.

E. Care should also be taken during installation to avoid the accumulation of moisture in the system. Roof boards shall be covered the same day as installed. Avoid application of roof boards during rain, heavy fog and any other conditions that may deposit moisture on the surface, and avoid the overuse of non-vented, direct-fired heaters during winter months.

1.6 FIELD CONDITIONS

A. Application standards where applicable are in accordance with design assembly specifics, system manufacturer requirements and the roof board technical documents.

B. Do not install roof boards that are moisture damaged. Indications that panels are moisture damaged include, but not limited to, discoloration, sagging, or irregular shape.

C. Installed roof boards shall be dry, with free moisture content of less than 1% using a moisture meter that has been set to the gypsum scale, before applying adhesive, asphalt, or membrane.

D. All components used in roofing systems shall be protected from exposure to moisture before, during and after installation.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Georgia-Pacific Gypsum LLC product, DensDeck Prime, or an approved equal that meets or exceeds all specifications.

2.2 FIBERGLASS MAT FACED GYPSUM ROOF BOARD

A. Meet or exceed the following specifications:

1. Thickness: 5/8 inch.

2. Weight: 2.5 lb/sq. ft.

3. Surfacing: Fiberglass Mat.

4. Flexural Strength, Parallel (ASTM C473): 100 lbf, minimum.

5. Flute Span (ASTM E661): 8 inches.

6. Permeance (ASTM E96): Greater than 32 perms.

7. R-Value (ASTM C518): 0.67.

8. Water Absorption (ASTM C473): Less than 10 percent of weight.

ROOF BOARDS 072220 - 3

9. Surface Water Absorption (ASTM C473): Nominal 2.5 grams.

10. Compressive Strength (Applicable Sections of ASTM C472): Nominal 900 pounds per square inch.

11. Flame Spread/ Smoke Development (ASTM E84): Not more than 0 Flame Spread, 0

Smoke Development

12. Combustibility (ASTM E136): Noncombustible

13. Fire resistance rating (UL 790 and ASTM E108): Class A

14. Mold Resistance (ASTM D3273): Scored a 10

PART 3 - EXECUTION

3.1 INSTALLATION

A. Apply only as many roof boards as can be covered by a roof membrane system in the same day.

B. Board edges and ends shall be butted tightly together; do not gap edges or ends.

C. Adhesive Installation over Thermal Insulation, under Single-Ply Roofing Systems:

1. Stagger roof board end and edge joints minimum 12" over installed insulation layers.

2. Stagger roof board end and edge joints minimum 6".

3. Adhere roof boards over installed insulation using adhesive as recommended by roofing system manufacturer’s product data.

4. Apply overall pressure to ensure full adhesion. Do not slide into place.

D. Installation Directly on Metal Decking:

1. Install roof boards with long edges bearing on and parallel to top flutes, so that edges are supported.

2. Stagger roof board end and edge joints minimum 6".

3. Mechanically fasten roof board in accordance with system Manufacturer’s recommendations.

E. Following roofing system installation, avoid leaks and properly manage water accumulation.

1. Eliminate moisture vapor movement by convection and control the flow of water by gravity through imperfections in the roof system.

2. After a leak has occurred, do not allow condensation on the upper surface of the roof membrane, and all moisture accumulations as a result of the leak shall be removed, leaving dry substrates and materials.

3.2 PROTECTION

A. Protect roof board installations from damage and deterioration until the project is complete and has been accepted by the Government.

END OF SECTION 072220

EPDM ROOFING 075323 - 1

EPDM ROOFING

SECTION 075323

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Fleece-backed, fully adhered ethylene-propylene-diene-terpolymer (EPDM) roofing system.

2. Coverboard.

3. Roof insulation.

4. Fastening components.

5. Adhesives, cleaners, and sealants.

6. Metal edging.

B. SYSTEM DESCRIPTION

1. The basis of design for this project is the Carlisle Sure-Seal FleeceBACK system. The Contractor may submit, for approval, a comparable system that meets or exceeds all technical and performance requirements outlined in these specifications as well as the salient characteristics of the Carlisle products.

2. Concrete deck portion consisting of the following layers:

a. Membrane: 145 mil fleece-backed EPDM membrane. Carlisle FleeceBACK Sure- Seal or approved equal.

b. Coverboard: 5/8” gypsum roof board. Densdeck Prime or approved equal. See specification section 072220 Roof Boards for full requirements.

c. Adhesive: Two-part polyurethane adhesive, full coverage, between all layers.

Carlisle Flexible FAST adhesive or approved equal.

d. Insulation: Polyisocyanurate or Expanded Polystyrene insulation – R-50 total insulation value. All layers secured with the two-part polyurethane adhesive.

e. Vapor barrier: Self-adhering rubberized asphalt (35 mils) laminated to a woven polypropylene film (5 mils). Carlisle VapAir Seal 725TR or approved equal.

f. Primer: Appropriate primer in accordance with vapor barrier manufacturer’s instructions. Cav-Grip III or approved equal.

3. Metal deck portion consisting of the following layers:

a. Membrane: 145 mil fleece-backed EPDM membrane. Carlisle FleeceBACK Sure- Seal or approved equal.

b. Top Coverboard: 5/8” gypsum roof board. Densdeck Prime or approved equal. See specification section 072220 Roof Boards for full requirements.

c. Adhesive: Two-part polyurethane adhesive, full coverage, between all layers.

Carlisle Flexible FAST adhesive or approved equal.

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d. Insulation: Polyisocyanurate or Expanded Polystyrene insulation – R-50 total insulation value. All layers secured with the two-part polyurethane adhesive.

e. Vapor barrier: Self-adhering rubberized asphalt (35 mils) laminated to a woven polypropylene film (5 mils). Carlisle VapAir Seal 725TR or approved equal.

f. Primer: Appropriate primer in accordance with vapor barrier manufacturer’s instructions. Cav-Grip III or approved equal.

g. Base Coverboard: 5/8” gypsum core coverboard, mechanically fastened IAW manufacturer’s instructions for system warranty. Densdeck Prime or approved equal. See Specifications Section 072220 for full roof board requirements.

1.2 SUBMITTALS

A. All submittals shall be processed in accordance with specifications Section 013300.

B. Prior to ordering materials and no later than 60 days after NTP, the roofing contractor must submit the following:

1. Shop drawings showing layout, details of construction and identification of materials.

2. Catalog and technical data for all materials included in the roofing system.

3. A sample of the manufacturer's Membrane System Warranty.

4. Submit a letter of certification from the manufacturer which certifies the roofing contractor is authorized to install the manufacturer's roofing system and lists foremen who have received training from the manufacturer along with the dates training was received.

5. Certification of the manufacturer's warranty reserve.

C. Upon completion of the installed work, submit copies of the manufacturer's final inspection to the specifier prior to the issuance of the manufacturer's warranty.

1.3 QUALITY ASSURANCE

A. Refer to specifications Section 014000 Quality Requirements for additional information on administrative and procedural requirements for quality assurance and quality control.

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

C. The roofing contractor shall be fully knowledgeable of all requirements of the contract documents and shall make themselves aware of all job site conditions that will affect their work.

D. The roofing contractor shall confirm all given information and advise the government, prior to bid, of any conflicts that will affect their cost proposal.

E. Pre-Application/Pre-Construction Conference: Prior to beginning work, convene a conference to review conditions, installation procedures, schedules and coordination with other work. Refer

EPDM ROOFING 075323 - 3

to Specification Section 013100 Project Management and Coordination for additional information regarding the Pre-Construction Conference.

F. The Membrane Roofing System must achieve a UL Class A.

G. The specified roofing assembly must have been successfully tested by a qualified testing agency to resist the design uplift pressures calculated according to:

American Society of Civil Engineers (ASCE 7)

International Building Code (IBC)

H. The membrane must be manufactured by the material supplier. Manufacturers supplying membrane made by others are not acceptable.

I. Unless otherwise noted in this specification, the roofing contractor must strictly comply with the manufacturer's current specifications and details.

J. The roofing system must be installed by an applicator authorized and trained by the manufacturer in compliance with shop drawings as approved by the manufacturer. The roofing applicator shall be thoroughly experienced and upon request be able to provide evidence of having at least five (5) years successful experience installing single-ply EPDM roofing systems and having installed at least one (1) roofing application or several similar systems of equal or greater size within one year.

K. Provide adequate number of experienced workmen regularly engaged in this type of work who are skilled in the application techniques of the materials specified. Provide at least one thoroughly trained and experienced superintendent on the job at all times roofing work is in progress.

L. There shall be no deviations made from this specification or the approved shop drawings without the prior written approval of the CO. Any deviation from the manufacturer's installation procedures must be supported by written certification on manufacturer's letterhead and presented for the CO’s approval.

M. Upon job start, during the application of the first polyurethane layer, the applicator shall arrange for an in-progress inspection to be made by a manufacturer’s fleece-backed EPDM specialist with a minimum of 5 years’ experience with dual component adhesive application, to ensure proper application procedures and conditions are followed.

N. Upon completion of the installation, the applicator shall arrange for an inspection to be made by a non-sales technical representative of the membrane manufacturer in order to determine whether or not corrective work will be required before the warranty will be issued. Notify the COR seventy-two (72) hours prior to the manufacturer's final inspection.

O. Inspection: Upon completion of work and the manufacturer’s inspection, conduct an inspection with the Government and contractor to ascertain that the waterproofing system was installed according to specifications and details.

EPDM ROOFING 075323 - 4

1.4 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to the job site in the manufacturer's original, unopened containers or wrappings with the manufacturer's name, brand name and installation instructions intact and legible. Deliver in sufficient quantity to permit work to continue without interruption.

B. Prior to handling or storing any material, consult the product’s Safety Data Sheet and Technical Data Bulletin for cautions and warnings.

C. Comply with the manufacturer's written instructions for proper material storage.

1. Store EPDM membrane in a dry area. Moisture absorbed by the fleece backing must be removed using a wet-vac system prior to membrane adhesive.

2. Store other materials between 60°F and 80°F in dry areas protected from water and direct sunlight.