Specifications.pdf

VOYAGURES NATIONAL PARK

INTERNATIONAL FALLS, MINNESOTA

LOG CABIN REHABILITATION

PMIS 236560

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

APRIL 2021

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

Section 01 10 00 - Division 01 Short Form General Requirements

DIVISIONS 07-13

Section 07 31 13 – Asphalt Shingles Section 08 01 52 - Window Sash Fabrication / Installation Section 09 91 13 – Painting Section 13 31 10 – Log Restoration

DRAWINGS

COVER

A0-1 GENERAL NOTES – REPRESENTATIONAL PHOTOGRAPHS

A1-0 NORTH ELEVATION AND PORCH RESTORATIONS

A2-0 WEST, EAST, SOUTH ELEVATIONS RESTORATIONS

A3-0 INTERIOR CABIN RESTORATIONS – CONSTRUCTION DETAILS

A4-0 CONSTRUCTION DETAILS

A5-0 CONSTRUCTION DETAILS – WINDOW DETAILS

APPENDIX

Appendix A – Reference Historical Photographs

SECTION 01 10 00

DIVISION 1 SHORT FORM GENERAL REQUIREMENTS

PART 1 – GENERAL

ITEM 1 - DESCRIPTION OF WORK

1.1 Background: This project involves the rehabilitation of the historic I.W. Stevens log cabin located on Namakan Lake. The cabin is one of four historic structures located on this National Register property and was originally constructed in 1934. The cabin has received periodic maintenance performed and is currently in overall structurally sound condition. The property is a designated visitor destination and publicly accessed.

1.2 Work Covered by the Contract Documents:

A. Project Location: The project is located within Voyageurs National Park in International Falls, Minnesota. The project is located on an island and reachable by boat only and approximately 4 miles from the nearest landing.

B. Work consists of: The 23"x 33" log structure is sitting on a rock pier foundation. The work includes replacing or repairing 90 feet of deteriorated logs and log crowns. Wood front steps, landing, and porch floor and subfloor will be replaced. An estimated 1000 square foot gable roof coverage to be replaced and any roof decking that is deteriorated will be repaired or replaced.

The door will be repaired and all window voids will receive custom replication window units.

Trim wood members will be scraped and painted. The existing chimney on the exterior will be restored and internally re-supported. A portion of interior wood floor and subfloor will be replaced. See the accompanying construction drawings and technical specifications for further detail of scope of work under this contract.

C. All work will be performed under a single contract.

D. Period of Performance: Work shall be completed within 120 calendar days after issuance of

Notice to Proceed.

ITEM 2 - EXISTING UTILITIES

2.1 Existing Utilities: No existing utilities are present serving the cabin nor will be in conflict with performing the work.

2.2 Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, Contractor shall report any damage to Contracting Officer’s Representative (COR) and the damage will be repaired at the expense of the contractor who caused the damage. If damage occurs to an unknown utility, Contractor must provide a cost estimate for any type of discovery or damage caused. Before contractor moves forward with the repair/installation, the contractor must have written approval by the Contracting Officer (CO) before repair/installation of new materials begins. CO is the only Government Agent with the authority to approve changes to the terms, conditions or price of the contract. NO OTHER PERSON IS AUTHORIZED to approve changes to the terms, conditions or price of the contract.

ITEM 3 - CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations: At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

https://www.nps.gov/voya/learn/management/superintendents-compendium.htm

A. No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park.

B. Smoking is not permitted within any Federal building or within 25 feet of entrances, operable windows, or outdoor air intakes.

C. Pubic Use of Site: Contractor shall at all times conduct operations to ensure the least inconvenience to the public. The contractor shall provide signage, construction fencing, or other methods necessary to protect the public which will be allowed to navigate to the island to visit the other structures. The COR will direct the Contractor of areas to avoid for placement of any fencing. The contractor shall ensure the project site is protected for after work hours potential visits by the public. This includes not leaving the cabin structure suspended by bracing, jacks, or other methods when workers are not present.

3.2 On-site work hours: Work shall be generally performed during normal business working hours of 8 a.m. to 5 p.m., Monday through Friday, except when otherwise indicated. The Contractor is required to leave the worksite at the end of each day – no overnight camping at the project site.

A. Work on Saturdays, Sundays, Federal holidays, early morning, or at night may not be performed without prior consent from the Contracting Officer and/or Contracting Officers Representative.

Submit requests for work outside of the stated normal business hours to the Contracting Officer and/or Contracting Officers Representative. for approval at least 2 business days in advance of the work.

3.3 Contractor Use of Site:

A. General: Contractor shall have limited use of the site beyond the cabin structure for construction operations. Do not disturb portions of Project site beyond areas in which the Work is indicated.

Protect all trees and mature vegetation within the project limits from damage. Isolate carpentry staging and workstations to as few locations reasonably possible and outside the higher densely vegetated understory.

B. Limits: Limit use of premises to within 30-feet of the cabin structure for all material staging and active carpentry work. Any request to expand that limits of use by the Contractor must be approved by the COR in writing.

C. Security and Protection facilities installation:

1. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

1. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project

Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area. Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

2. Site Enclosure Fence: Before construction operations begin, furnish and install portable 42-inch open mesh orange construction fencing in a manner that will prevent people and animals from easily entering site and or storage areas.

a. Extent of Fence: As required to enclose portion determined sufficient to accommodate construction operations and storage

b. Maintain security by limiting number of keys to the cabin and restricting distribution to authorized personnel. Provide Contracting Officer Representative with one set of keys.

3. Security Enclosure and Lockup: Provide lockable entrances to prevent unauthorized entrance, vandalism, theft, and similar violations of security to the cabin.

3.4 Storage - Staging Areas:

A. Confine Storage of materials and equipment to the project area – within 30-feet from the cabin structure in any direction.

3.5 Preservation of Natural Features: The landscape of the island is an ecological and historical asset to Voyageurs National Park and shall be protected from damage to the greatest extent throughout the construction process.

3.6 Hauling Restrictions: Match State and County road requirements for all roads leading to and within the park access. See sheet A0-1 in the construction drawings for parameters for materials and equipment barge transport to the project site as well as personnel transport to be independently procured by the Contractor. https://www.dot.state.mn.us/materials/pvmtdesign/sll/index.html

3.7 Housekeeping:

A. Keep project neat, orderly, and in a safe condition at all times. Store and use equipment, tools, and materials in a manner that does not present a hazard. Immediately remove all hazardous rubbish. Do not allow rubbish to accumulate. Provide onsite containers for collection of rubbish and dispose of it at frequent intervals during progress of work.

B. Dispose of waste materials legally off NPS property.

C. Burning of removed materials and rubbish is prohibited.

3.8 Photo Documentation:

All photos shall be in focus, show maximum range of depth of field general photo and then close up detail photo as needed. Shall be in submitted in the contractors daily reports.

A. Existing Condition Images: Before starting construction, take color, dated, digital images of project site and adjacent property/roads/etc. that may be impacted by construction activity/traffic.

Include existing items to remain or be salvaged from different vantage points and with context for location identification.

B. Construction Images:

1. Document all sub-surface work/ trenches etc. prior to backfill with enough overall field view to show location and then details.

2. Maintain organized index for photos with date, description, etc..

3. Additional images as needed when questions or emergency situations occur. Submit within 1 business day.

3.10 Fire and Life Safety:

As a minimum, conduct one weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the Contracting Officer within one day after the meeting.

A. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations).

B. Store and handle hazardous materials in accordance with manufacturer’s and OSHA 29CFR1926 Subpart D requirements. Maintain readily available, on site, MSDS/Safety Data Sheets (SDS) for each chemical.

i. Immediately report all spills of hazardous materials to the park.

ii. Maintain a spill emergency response kit.

iii. Train employees how to respond to a spill and use the emergency response kit.

3.11 Noise and Acoustics Management:

A. Noise Control: Perform demolition and re-roof operations to minimize noise. Perform noise-producing work in less sensitive hours of the day or week as directed by the Contracting Officer.

B. Repetitive and/or intermittent, high-level noise: Permitted only during Daytime.

1. Do not exceed the following dB(A) limitations at 50 feet:

Sound Level in dB(A) Time Duration of Impact Noise 70 More than 12 minutes in any hour 80 More than 3 minutes in any hour

2. Maximum permissible construction equipment noise levels at 50 feet:

EQUIPMENT dB(A) MATERIALS HANDLING dB(A) Compressors 75 Pneumatic Tools 80 Pumps 75 Saws 75 Generators 75 Vibrators 75

ITEM 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work in accordance with the terms and conditions of the contract.

Period of Performance for this contract will be 120 days after the issuance of the Notice to Proceed.

ITEM 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids. All bidders will be held to have the same knowledge concerning the site and the on ground conditions as if they had inspected the job site. No change orders will be approved for work obvious during a site visit.

Please see FAR 52.236-27 - Site Visit (Construction).

ITEM 6 - ABBREVIATIONS

6.1 The list of abbreviations, which may be used in the Construction Specifications or Special Provisions, refer to the organizations and specifications of the organizations may be found at the below https://www.nps.gov/orgs/1671/do-business-with-us.htm

ITEM 7 - ACCIDENT PREVENTION

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

A. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary personal protective equipment in good repair at all times. As a minimum, maintain four hard hats and all other APP required equipment.

7.2 Submittals:

A. Accident Prevention Program: Prior to any work commencing on site, contractor must submit

(as outlined below in Submittal section) an accident prevention plan. This plan must be submitted and approved. The program shall include:

1. Name of responsible supervisor to carry out the program

2. First aid procedures

3. Training, both initial and continuing

4. Planning for possible emergency situations

5. Contractor to identify nearest location of medical facility for emergencies

6. Recognition that work will be performed in remote areas with limited communication or cell phone coverage

B. Meeting and Inspection Reports: Safety Meetings: As a minimum, conduct 15 minute

"toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite. Submit a report of safety meetings and inspections.

Contractor is to document “toolbox” meeting minutes on the Contractor’s Quality Control Daily Reports.

7.3 Qualification of Employees:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner to include operators of vehicles and equipment. .Provide operating instructions for all equipment. .

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

7.4 Accident Reporting: The Contractor shall report all accidents to the Contracting Officer or designee as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

7.5 First Aid Facilities: Provide adequate facilities for the number of employees and appropriate to the hazards associated with the types of ongoing construction work at the site.

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

7.7 Personal Protective Equipment (PPE): It is the Contractor's responsibility to require all those working on or visiting the site to wear necessary protective equipment at all times.

A. PPE must meet requirements of applicable ANSI standards. Selection shall conform to OSHA

29CFR 1926 Subpart E.

B. B. A hard hat use area shall be designated by the Contractor. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting Officer.

C. C. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary PPE. All PPE will be serviceable at all times. At a minimum, maintain 2 sets of PPE including hard hats and all other Accident Prevention Plan required equipment.

7.8 Hazardous Materials: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

ITEM 8 - PRECONSTRUCTION CONFERENCE: See FAR 52.236-26

ITEM 9 - SUBMITTALS

9.1 General Submittal Procedures:

A. General Submittal Procedures: Submittals shall be prepared and provided for the individual Specification Sections. Types of submittals are indicated in individual specific sections. CM-16 Transmittal Form: All submittals shall be transmitted via email using National Park Service form CM- 16 form. The form will be provided by the Contracting Officer. No action will be taken on a submittal item unless accompanied by the CM-16 transmittal form. Contractor shall submit to Contracting Officer (CO) and Contracting Officer Representative (COR).

1. Documents to be submitted to Contracting Office before Notice to Proceed (NTP) will be issued (all are due 10 calendar days after notice of contract award):

1. Signed Contract

2. Alternative Payment Protection - Must provide either a Payment Bond or Irrevocable

Letter of Credit for construction contracts greater than $35,000, but not greater than $150,000

a. Payment Bonds - Must be provided for construction contracts exceeding $150,000

b. Performance Bond - Must be provided for any construction contracts exceeding $150,000

3. Certificate of Liability Insurance

4. Letter Designating the Project Manager and Site Superintendent and their authority as it pertains to this project

5. Safety/Accident Prevention Plan – must be approved before work can commence/start

If all of the documents listed above have not been received, Notice to Proceed will not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to Proceed has been issued.

2. Documents to be submitted to Contracting Office after NTP has been issued and work can be performed on-site/begin (all are due 10 calendar days after issuance of NTP or otherwise specified in the table below):

The following submittals shall be submitted with a CM-16 transmittal cover sheet to the CO/COR and submitted for approval as outlined below:

1. Work/Project Schedule -- delineating the various stages of work by phase

(milestones)

2. Contractor shall provide, when applicable but not limited to, copies of product specifications, manufacturer’s literature and installation instructions of all materials and products to be furnished and installed. COR will verify that product specifications meet contract requirements.

3. Quality Control Plan

4. Schedule of Values (if applicable)

5. Documentation of licensing or certifications as an approved installer by manufacturer of materials for each individual product submittal and shop drawing (if required)

6. List of individuals working on the project

7. SF1413 – Statement of prime contractor/acknowledgement of subcontractor

8. Safety Data Sheets (SDS) for each individual product submittal and shop drawing

(if required)

3. The following submittals are required to be submitted before final payment is made:

1. Unless otherwise specified in the specifications, Contractor is required to provide at the end of the project a series of before, during and after pictures of what was completed. The pictures will include all areas the contractor is authorized to work on.

2. Manufacturers recommended care and cleaning requirements (if applicable)

3. Receipts from recycling companies showing quantity of material being recycled.

4. Warranty documentation for workmanship (as outlined in the Specifications/Statement of Work: Start date of warranty will be the date shown on the Final Inspection Checklist/Report)

5. Product warranties (if applicable)

6. Pay applications

7. Certified payrolls – should be sent weekly

8. Contractor quality control daily reports (any outstanding)

9. Release of Claims - must be for the full amount of the contract (to include modifications)

10. SF1413 (any outstanding) - Statement of prime contractor/ acknowledgement of subcontractor

11. Drawings/pictures (if applicable), etc.

12. Testing Reports (if applicable)

13. Final Inspection Checklist/Report (initiated by the COR, all parties sign once complete)

A. Submittal List: A submittal list has been attached to the end of this Specification Section. The intent is to provide an overall summary of submittal requirements and not a comprehensive list. The requirements of the individual Specification Sections, terms and conditions of the Contract still apply regardless of what is shown on the submittal list.

B. The items in the Submittal List shall be submitted in accordance with the “Date Completed” column. If all of these documents have not been received in the timeframe outlined in the column, the Notice to Proceed will not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to Proceed has been issued. Contracting Officer will notify the Contractor of tentative date for the Pre-Construction Conference after contract award.

Description Quantity/ Format

Date Completed

Signed Contract.

Electronic Copy

10 calendar days after Notice of Award

Payment Bond/Performanc e Bond or irrevocable letter of credit.

Electronic Copy

10 calendar days after Notice of Award

Satisfactory evidence of liability insurance coverage and workman’s compensation for the Contactor and all subcontractors.

Electronic Copy

10 calendar days after Notice of Award

Letter designating Project Superintendent and Site Superintendent and their authority as it pertains to this project.

10 calendar days after Notice of Award

Documentation of licensing or certification as an approved installer by manufacturer of materials to be used.

10 calendar days after Notice to Proceed

Project Schedule Electronic Copy

10 calendar days after Notice to Proceed

List of individuals working on the project

10 calendar days after Notice to Proceed

Safety/ Accident Prevention Plan

Electronic Copy

10 calendar days after Notice to Proceed; before any work is conducted/begins

Product Specifications manufacturer’s literature and installation instructions of all materials (when applicable)

Electronic

10 calendar days after Notice to Proceed

List of all subcontractors

Electronic Copy

10 calendar days after Notice to Proceed

Written statements from subcontractors certifying compliance with applicable labor standard clauses

(SF1413).

Electronic Copy

10 calendar days after Notice to Proceed

Safety Data Sheets (SDS) for all applicable materials (if applicable)

Electronic Copy

10 calendar days after Notice to Proceed

Required photographs -before, during and after pictures of what was completed.

Electronic Copy

At the time of contract acceptance/completion or as specified in the specifications

Manufacturers recommended care and cleaning requirements (if applicable)

Electronic Copy

At the time of contract acceptance/completion

Receipts from recycling companies showing quantity of material being recycled (if applicable)

Electronic Copy

At the time of contract acceptance/completion

Warranty documentation for workmanship

Electronic Copy

At the time of contract acceptance/completion

Product warranties (if applicable)

Electronic Copy

At the time of contract acceptance/completion

Pay applications Electronic Copy

At the time of contract acceptance/completion or as needed for progress payments

Certified payrolls Electronic Copy

At the time of contract acceptance/completion or as needed for progress payments

Contractor quality control daily reports (any outstanding)

Electronic Copy

At the time of contract acceptance/completion or as needed for progress payments

Release of Claims

- must be for the full amount of the contract (to include modifications)

Electronic Copy

At the time of contract acceptance/completion

SF1413 (any outstanding) - Statement of prime contractor/ acknowledgement of subcontractor

Electronic Copy

At the time of contract acceptance/completion or as needed before and throughout the life of the contract

Drawings/pictures Electronic At the time of contract acceptance/completion or as specified in

(if applicable), etc.

Copy the specifications

Testing Reports (if applicable)

Electronic Copy

At the time of contract acceptance/completion or as specified in the specifications

Final Inspection Checklist/Report

Electronic Copy

At the time of contract acceptance/completion

Technical Section specified documents as outlined in the Specifications/S

OW

Electronic Copy

As required to maintain the project schedule and with product lead times

9.2 Shop Drawings, Product Data, and Samples: Contracting Officer will provide sample cover sheet in the form of the CM-16 transmittal cover sheet.

A. Shop Drawings: See technical specifications

B. Product Data: See technical specifications

C. Samples: See technical specifications

D. For submittals specified above, forward submittals to CO and COR: See technical specifications

E. Submittals are to be provided electronically, except in the case of otherwise specified physical color or materials samples (if required). After approving submittals, Contracting Officer will return one copy of the approved submittal to the Contractor. If submittals are not approved, Contracting Officer will return copy of the disapproved submittal that was provided electronically, not to include color and material samples submitted, to Contractor with reasons for rejection. Contractor will be required to resubmit, correcting the identified reasons in the returned disapproved submittal. Any work done before approval shall be at Contractor's own risk.

9.3 Approved Equals: If an item in this solicitation is identified as “brand name or equal” or lists more than 3 manufacturers, the product description reflects the characteristics and level of quality that will satisfy the Government’s needs. The salient physical, functional, or performance characteristics that “equal” products must meet are specified in the solicitation or relevant specification.

A. For each item proposed as an “approved equal,” submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the characteristics of the proposed item with that specified.

3. Changes required in other elements of the work because of the substitution.

4. Name, address, and telephone number of vendor.

5. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

B. A request for approval constitutes a representation that Contractor:

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

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

C. Approved Equals will be evaluated and approved/disapproved during the submittal process.

9.4 Project Schedule: Within 10 calendar days after issuance of NTP and before beginning any work, submit Project Schedule. Contracting Officer Representative and Contracting Officer will review the Project Schedule for format and content. Submit Project Schedule electronically (normally in Gantt Chart format) showing estimated starting and completion dates for each part of the work. The first progress payment will not be issued until an acceptable project schedule is submitted. The following information must accompany submission of project schedule prior to processing any pay application:

A. Daily/weekly progress reports during construction as part of the administration process.

B. Schedule of Values: Breakdown each lump-sum item into component work activities used in the schedule, for which progress payments may be requested. The Schedule of Values will form the basis for payment. The work activities broken out within the schedule of values shall be integrated into and made a logical part of the construction baseline schedule submitted under this specification. The total costs for the component work activities shall equal the contract price for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values. A sample Schedule of Values will be provided by the Contracting Officer Representative.

ITEM 10 – TEMPORARY SERVICES

10.1 Description: The Contractor shall be required to provide all necessary power generation, water hydration, and contractor support services necessary being remotely located from any available services.

The contractor will be allowed to utilize the existing vault toilet on the island located within 50-yards of the project site; however is required to provide their own sanitary and personal hygiene materials (paper, soap, sanitizer, etc). All rules of use posted for the vault toilet that apply to the public shall apply to the Contractor (no trash in the vault, proper use of the facility, etc.).

10.2 Fire Prevention and Protection:

A. Hazard Control: Take all necessary precautions to prevent fire during construction. Any approved fuel operated generators or equipment shall have a secondary containment plan for any spills. Provide adequate ventilation during use of volatile or noxious substances.

ITEM 11 - PROJECT CLOSEOUT

11.1 Description: The work of this section consists of final cleanup, closeout submittals, final inspection procedures, and safety precautions.

11.2 Cleaning: Remove all tools, equipment, surplus materials, and rubbish. At time of final inspection, project shall be thoroughly clean and ready for use.

11.3 Final Inspection/Project Closeout: Submit written certification that project is complete, and a final inspection must be requested to the Contracting Officer and/or Contracting Officer Representative in writing. The Contracting Officer or designee will inspect within 10 days of receipt of request or at a mutually agreeable time.

A. If the work is determined to be complete, following the final inspection, the Contracting Officer Representative will prepare and complete the Final Project Closeout Checklist/Inspection document and provide acceptance of the work to the Contracting Officer. Contracting Officer will then make final approval of the Final Project Closeout Checklist/Inspection document issuing final acceptance of the project.

B. If the work is not determined to be complete following the final inspection, the Contracting Officer and/or Contracting Officer Representative will notify Contractor in writing and prepare the Punchlist Items on the Final Project Closeout Checklist/Inspection document.

Contractor shall request a new final inspection after completing the work. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

C. Contractor shall complete the Punch List items as documented on the final project closeout checklist/inspection document.

D. If Contractor completes all items of work on the Punch List and all contractually required items, Contracting Officer will issue documentation of final acceptance/project completion of the work by issuing final approval on the Final Project Closeout Checklist/Inspection document, resulting in issuing final acceptance of the project.

E. If the Contractor fails to complete the work within the time frame, the Contracting Officer may correct the work with an appropriate reduction in contract price or charge for re-inspection costs in accordance with the Inspection of Construction contract clause.

F. Disposition of any permits and warranties required by the specifications in this section.

11.4 Final Acceptance: After all deficiencies have been corrected, a Letter of Acceptance will be issued.

Contractor will be required to submit all items as outlined in the submittal section above before final payment will be approved and finalized.

11.5 Warranty

A. 1-year Construction Warranty on all labor and workmanship shall be based on date of final acceptance. This is determined/issued by COR/CO and contractor during the project closeout phase. This warranty does not include the individual manufacturer’s part or product implied warranties.

B. Provide All Warranty information of products installed organized by Division. All contact information, extents and conditions shall be clearly noted as well as date of overall final acceptance/project completion.

C. Information shall include operation and maintenance manuals for each warranted material.

END OF SECTION

VOYA 236560 APRIL 2021

ASPHALT SHINGLES 073113 -

All product/materials contained in the below sections are subject FAR Clause 52.211-6 Brand Name or Equal.

Despite a manufacturer and product being listed, it is a suggested product, but all products/materials are brand name or “or equal”.

Brand name or equivalent product must use manufacturer’s instructions and recommendations for product installation/application.

Prior to application of stain per these specifications, proper cure time of the fencing materials must have occurred on the fencing section(s) in which stain is being applied thereto. The Period of Performance set forth takes into consideration any/all lumber cure times that may be required for these various fencing sections ensuring the successful completion of the fence replacement project.

SECTION 07 31 13

ASPHALT SHINGLES

PART 1 - GENERAL

1.1 SCOPE OF WORK

A. Work consists of the following:

1. Remove and replace the existing asphalt shingle roof system and associated roof flashings, down to deck and patch any openings in the structural decking as required before installing the new roof system, associated metal roof flashings and trims. Replace.

2. National Park Service (NPS) requires the existing roof decks to be walked after demolition has been completed with their onsite Contracting Office Representative (COR) or designated Project Inspector prior to installation of any new roof materials to ascertain if any water penetration has caused deterioration or corrosion of the existing decks which are to remain. If there are areas of concern the COR may require the Contractor to perform pull out of deck members to determine if the existing decking in question can remain or if it will need to be replaced. This can include visible areas of water damage or insect related damage. Replacement of these types of unforeseen damaged areas will be by Change Order if required.

B. Roof Area:

1. Refer to Construction Documents with general dimensions ±.

2. Note the Contractor is encouraged to field verify roof dimensions prior to bidding.

1.2 SUMMARY

A. Section Includes:

1. Selective Demolition.

2. Asphalt shingles.

3. Underlayment materials.

4. Sheet metal flashing and trim.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1.4 ACTION SUBMITTALS

A. Product Data: For the following:

1. Three Tab Asphalt shingles.

2. Underlayment materials.

3. Sheet metal flashing and trim.

B. Product Samples: For the following:

1. Three Tab Asphalt shingles.

1.5 INFORMATIONAL SUBMITTALS

A. Sample warranty.

1. Material warranty.

2. Roofing installer warranty.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance data.

1.7 QUALITY ASSURANCE

A. Installer Qualifications: An authorized installer who is trained and approved by manufacturer.

1.8 WARRANTY

A. Materials Warranty: Manufacturer agrees to repair or replace asphalt shingles that fail within specified warranty period.

1. Materials Warranty Period: 25 years from date of Final Completion, prorated, with first

10 years nonprorated.

2. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds of up to 130 mph (58.1 m/s) for 15 years from date of Final Completion.

3. Algae-Resistance Warranty Period: Asphalt shingles will not discolor for 10 years from date of Final Completion.

B. Roofing Installer’s Warranty: Roofing installer to provide and sign a Roofing Installer’s

Warranty in which Installer agrees to repair or replace components of asphalt-shingle roofing that fail in materials or workmanship within specified warranty period.

1. Warranty Period: Five years from date of Final Completion.

2.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Exterior Fire-Test Exposure: Provide asphalt shingles and related roofing materials identical to those of assemblies tested for Class A fire resistance in accordance with American Society of Testing Materials (ASTM) E108 or UL 790 by Underwriters Laboratories or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency.

B. Wind Resistance: Provide asphalt shingles that comply with requirements of

ASTM D7158/D7158M, Class H.

C. Shingles:

1. Mineral granular-surfaced asphalt shingles.

a. Self-sealing.

b. Square tab.

c. Fungus-resistant.

d. Impact resistant shingles, Class 4.

e. Type I, weighing not less than 290 pounds per 100 square feet.

2.2 GLASS-FIBER-REINFORCED ASPHALT SHINGLES

A. Laminated-Strip Asphalt Shingles: ASTM D3462/D3462M, laminated, multi-ply overlay construction; glass-fiber reinforced, mineral-granule surfaced, and self-sealing.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Atlas Molded Products; a Division of Atlas Roofing Corporation.

b. CertainTeed Corporation.

c. GAF.

d. Owens Corning.

e. Tamko Building Products, Inc.

f. Other Approved Equals.

2. Strip Size: Manufacturer's standard approximately 42 inch.

3. Algae Resistance: Granules resist algae discoloration.

4. Impact Resistance: Underwriters Laboratory (UL) 2218, Class 4.

5. Fire Resistance: UL 790 for Class A.

6. Color and Blends: Match existing roof shingle red tone color to greatest extent possible.

B. Ridge Shingles: Manufacturer's standard units to match asphalt shingles.

2.3 UNDERLAYMENT MATERIALS

A. Synthetic Underlayment: UV-resistant polypropylene, polyolefin, or polyethylene polymer fabric with surface coatings or treatments to improve traction underfoot and abrasion resistance;

evaluated and documented to be suitable for use as a roof underlayment under applicable codes by a testing and inspecting agency acceptable to authorities having jurisdiction.

1. Basis of design: RhinoRoof U20, as manufactured by InterWrap, Inc.

a. Product requirements include the following minimum characteristics listed below:

1) Permeability ASTM E96 - .05 perms.

2) Water Transmission ASTM D4869 – pass.

3) Tear Strength ASTM D4533 – MD 30 lbs (14 kg).

4) Tensile Strength ASTM D751 – MD 80 lbs (36 kg).

5) Bursts Strength ASTM D751 – 150 psi (1033 kPa)

6) Nominal Thickness ASTM D1777 – 6 mils (0.15 mm).

7) Width Per Roll – 36 inches.

2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Atlas Roofing Corporation.

b. CertainTeed Saint-Gobain.

c. GAF.

d. Owens Corning.

e. Tamko Building Products, Inc.

f. Other Approved Equals.

2.4 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D4586/D4586M Type II, asbestos free.

B. Roofing Nails: ASTM F1667, aluminum, stainless steel, copper, or hot-dip galvanized-steel wire shingle nails, minimum 0.120-inch- (3-mm-) diameter, sharp-pointed, with a 3/8- to 7/16-inch- (10- to 11-mm-) diameter flat head and of sufficient length to penetrate 3/4 inch (19 mm) into solid wood decking.

1. Where nails are in contact with metal flashing, use nails made from same metal as flashing.

C. Synthetic Underlayment Fasteners: As recommended in writing by synthetic-underlayment manufacturer for application indicated.

2.5 SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Full Roof Tear-off: Removal of existing roofing system down to existing roof deck or structure.

2. Temporarily protect existing roofing system and components that are to remain as required from damage.

3. Do not remove more roof than can be replace in a day, and the roof will be made watertight each night.

4. Remove debris and materials so as not to impose excessive loads on supporting roof, structure or framing.

5. Dispose of demolished items and materials promptly.

B. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Reinstall items in locations indicated, or in original locations as required. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

C. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition.

D. Inspect deck after tear-off of roofing system.

1. If broken or loose fasteners that secure deck panels to one another or to structure are observed, or if deck appears or feels inadequately attached, immediately notify COR.

a. Do not proceed with installation until directed by COR.

2. If deck surface is unsuitable for receiving new roofing or if structural integrity of deck is suspect, immediately notify COR.

a. Do not proceed with installation until directed by COR.

E. Disposal of Demolished Materials:

1. General: Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain NPS's property, remove demolished materials from Project site.

a. Do not allow demolished materials to accumulate on-site.

b. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

2. Burning: Do not burn demolished materials.

3. Disposal: Transport demolished materials off NPS's property and legally dispose of them.

F. Cleaning:

1. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

2.6 SHEET METAL FLASHING AND TRIM

A. Performance Requirements:

1. General: Sheet metal flashing and trim assemblies shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction.

Completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

2. Sheet Metal Standard for Flashing and Trim: Comply with National Roofing Contractors

Association’s (NRCA's) "The NRCA Roofing Manual" and Sheet Metal and Air Conditioning Contractors National Association’s (SMACNA's) "Architectural Sheet Metal Manual" requirements for dimensions and profiles shown unless more stringent requirements are indicated.

3. Single Ply Roofing Industry (SPRI) Wind Design Standard: Manufacture and install copings and roof edge flashings tested according to SPRI ES-1 and capable of resisting the following design pressure:

a. Design Pressure: 30 psf vertical design pressure.

4. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

B. Drip Edge Flashing Metal:

1. Metallic-Coated Steel Sheet: Provide zinc-coated (galvanized) 30 gauge steel.

C. Underlayment Materials:

1. Synthetic Underlayment: Laminated or reinforced, woven polyethylene or polypropylene, synthetic roofing underlayment; bitumen free; slip resistant; suitable for high temperatures over 111 deg C (220 deg F); and complying with physical requirements of ASTM D 22/D 226M for Type I and Type II felts.

PART 3 - EXECUTION

3.1 INSTALLATION OF UNDERLAYMENT MATERIALS

A. General: Comply with underlayment manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

B. Synthetic Underlayment:

1. Install on roof deck parallel with and starting at the eaves.

a. Lap sides and ends and treat laps as recommended in writing by manufacturer, but not less than 2 inches (51 mm) for side laps and 6 inches (152 mm) for end laps.

b. Stagger end laps between succeeding courses at interval recommended in writing by manufacturer, but not less than 72 inches (1829 mm).

c. Fasten with underlayment nails in accordance with manufacturer's written instructions.

d. Cover underlayment within period recommended in writing by manufacturer.

2. Install in single layer on roofs sloped at 4:12 and greater.

3. Install in double layer on roofs sloped at less than 4:12.

3.2 INSTALLATION OF ASPHALT SHINGLES

A. General: Install asphalt shingles in accordance with manufacturer's written instructions and recommendations in ARMA's "Asphalt Roofing Residential Manual - Design and Application Methods" and NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

B. Install starter strip along lowest roof edge, consisting of an asphalt shingle strip at least 7 inches

(178 mm) wide with self-sealing strip face up at roof edge per manufacturer’s written

1. Extend asphalt shingles 1/2 inch (13 mm) over fasciae at eaves and rakes.

2. Install starter strip along rake edge.

3. Provide 5” shingle exposure to match existing roof shingle lap.

C. Fasten asphalt shingle strips with a minimum of four roofing nails, but not less than the number indicated in manufacturer's written instructions for roof slope and design wind speed indicated on Drawings and for warranty requirements specified in this Section.

1. Locate fasteners in accordance with manufacturer's written instructions.

2. When ambient temperature during installation is below 50 deg F (10 deg C), hand seal self-sealing asphalt shingles by applying asphalt roofing cement spots between course overlaps after nailing the upper course.

D. Hip and Ridge Shingles: Maintain same exposure of cap shingles as roofing-shingle exposure.

Lap cap shingles at ridges to shed water away from direction of prevailing winds.

1. Fasten with roofing nails of sufficient length to penetrate sheathing.

END OF SECTION

08 01 52 -

WINDOW SASH FABRICATION

SECTION 08 05 52

WINDOW SASH FABRICATION / INSTALLATION

1.1 SUMMARY

A. This Section includes:

1. Fabrication and Installation of new window sashes for inward swinging casement win-dow units

2. Installation of bronze weather stripping for all windows

3. Painting new sashes. Painting on existing frames.

B. Related Sections include the following:

1. Division 9 Section "Painting" for painting and refinishing of wood windows.

1.2 SUBMITTALS

A. General: Submit the following in accordance with Conditions of the Contract and Division 1 Specification Sections:

B. Provide sample of glazing putty and paint manufacturer’s application requirements.

C. Shop Drawings:

1. Show restoration techniques and workmanship.

2. Submit complete shop drawings to the COR incorporating new sashes, weather stripping and miscellaneous window unit components.

D. Hardware and Weather Stripping: Provide Material Submittal Sheets and samples for all re-placement hardware for review and approval by the COR.

1.3 QUALITY ASSURANCE

A. Glazing Standards: Comply with recommendations of GANA's "Glazing Manual" and "Sealant Manual," unless more stringent requirements apply.

1.4 PROJECT CONDITIONS

A. Temporary enclosures shall be provided to maintain the building’s security and weather-tightness.

1.5 WARRANTY

A. Field Measurements: Field verify all measurements. Coordinate field measurements with con-struction drawings and resolve differing information with owner prior to commencing with shop drawing production.

2.1 MATERIALS

A. General: Comply with NWWDA I.S. 2.

B. Wood: Clear suitable fine-grain lumber, kiln dried to a moisture content of 6 to 12 percent at time of fabrication and free of visible finger joints, blue stain, knots, pitch pockets, and surface checks. Match size and profile of wood window components based on best discernable historical photographic information.

1. Window sashes, stops and parting Stops: Northeastern white pine species, grade C or better

(for opaque finish).

C. Fasteners: Comply with NWWDA I.S. 2 for fabrication and with manufacturer's recommenda-tions and standard industry practices for type and size of installation fasteners.

1. Use zinc-coated or nonferrous nails and screws for window fabrication and installation.

2. Use brass slotted screws for hardware installation.

D. Weather Stripping: Bronze metal (fastened with copper-plated steel nails)

1. Casement windows: V-shaped spring weather stripping at bottom rail and sill and L-slot profile at hinge side.

E. Glass and Glazing Materials: 3/16” clear thickness governed by size and/or wind and suction loads.

F. Glazing Putty and Accessories:

1. Glazing Putty: Oil-based glazing putty. Latex putty will NOT be acceptable.

2. Glazing points, galvanized steel, appropriately sized for glass units.

G. Glazing Primer: Boiled linseed oil brushed on prior to setting the glass.

2.2 HARDWARE

A. Hardware for casement windows shall be as follows and as indicated on the drawings.

1. Window sash Hardware:

Latch: Brass oxidized Bronze casement latch with lever hinge. Approximate size 2”x2”. Provide latch with historical replicative aesthetic and limited ornamentation.

Sash Lock: Brass oxidized bronze sliding barrel bolt. Approximate size 3” x 1”.

Hinges: 4” brass oxidized bronze butt hinges.

2.3 FINISHES

A. Wood Finish: Finishes are specified in Division 9 Section “Painting”.

3.1 GENERAL

A. Lead paint: The existing paint coatings on the existing frame wood and trim is not confirmed to contain lead. The Contractor shall follow the proper regulatory requirements for handling and maintaining a lead safe work place.

3.2 VERIFY CONDITIONS

A. Verify condition of existing rough openings prior to starting…