Project_Specifications_revised_0001.pdf

BIHO – PMIS #258202 Page 1

SPECIFICATIONS

Replace Housing Unit 5 (A,B,C, and D) Building Roofs

PMIS # 258202

Big Hole National Battlefield

National Park Service May,2021

BIHO – PMIS #258202 Page 2

PART 1 – GENERAL REQUIREMENTS

1.1 DESCRIPTION

The roof components of Housing Unit 5 are failing causing increased corrective maintenance issues to the interior of this housing unit. Repairs are being performed by park staff as needed to protect this unit in the interim. This project will replace years of patch work on a deteriorated metal roof with new updated materials and systems. The roof replacement project will allow for a more efficient and sustainable design, to manufacturer specifications, for Housing Unit 5 at Big hole National Battlefield.

1.2 CONTRACT LINE ITEMS

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cutoff points where one item ends and another begins.

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

CONTRACT LINE ITEM 0001 – Replace Roofs Housing Unit 5 (A,B,C, and D)

Contractor shall provide all labor, materials, equipment, supplies, containers, permits, licensing, insurance and all other items and services required for demolition and replacement of the existing metal roofing system (not original to the building), sheathing, and insulation for approx. 6500 square feet of metal roofing.

A. All materials and details must comply with environmental conditions at the site, to include Seismic Design Category C and ground snow load of 145 psf.

B. All existing sheathing will be replaced.

C. Extant fascia boards, wood trim, and/or siding will be inspected by the COR and contractor, then repaired or replaced, to match original profile, and paint to match as required.

D. Payment will be made at the contract lump sum price.

1.3 PUBLIC USE OF THE SITE

A. General: The project site will be open to the public during installation. The Contractor shall at all times conduct their operations to ensure the least inconvenience to the public.

Temporary closures may be permitted upon specific written approval of the Contracting Officer.

1.4 CONTRACTOR USE OF SITE

A. General: Limit construction operations to the project area limits.

B. Park Regulations: Ensure all personnel (contractors, subcontractors, and vendors) entering or working in the park are familiar with and obey all park regulations. Law enforcement rangers will intervene if they perceive any unsafe or unlawful activity.

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C. Park Entry: Vehicles associated with the Contractor shall be waived the entrance fee upon entering in a marked company vehicle or by providing the names of employees entering in personal vehicle(s). Please note that the entrance fee is waived only for the purpose of reporting directly to a specific work location. Any deviation for recreational purposes is subject to payment of required entrance fees.

D. Site Access: The contractor shall access the project site as instructed by the designated park Point of Contact or Project Inspector assigned by the Contracting Officer’s Representative.

Do not drive vehicles off road or access non-project areas without permission from the Contracting Officer or their representative.

E. Working Hours: Regular work hours shall be limited to daylight hours from 7:00 a.m. until

5:00 p.m. Monday through Friday, excluding government holidays. Work outside regular hours requires advance approval from the Contracting Officer.

F. Property Damage: The Contractor is required to report missing, lost, stolen, or damaged property occurring within the park. This report must be made to a Law Enforcement Ranger or Park Dispatch at the first available opportunity.

G. No Smoking Policy: Smoking is prohibited inside or outside within 25 feet of any buildings in the park. This applies to existing buildings and buildings under construction or renovation.

Discarding of tobacco products or debris anywhere other than into designated tobacco receptacles is considered littering and subject to fines.

H. Emergency Medical & Accident Reporting: In the event of an emergency / medical incident, the Contractor shall Dial 911 as needed. The Contractor shall also contact Park Dispatch for any medical emergency, traffic accident, or personal injury occurring within the Park. Park Dispatch is called so that the entrance station will be prepared should any emergency vehicles need to enter the Park and so that any available Emergency Medical Services personnel in the Park might respond until such time as the ambulance arrives.

1.5 QUALITY REQUIREMENTS

A. Quality Control: The contractor shall develop and maintain a quality control program to ensure the services are performed in accordance with commonly accepted commercial practices. The contractor shall develop and implement procedures to identify, prevent and ensure non-reoccurrence of defective services.

B. Quality Assurance: The Government will evaluate the contractor’s performance in accordance with the PWS and Quality Assurance Surveillance Plan (QASP) to monitor performance and ensure services are received, to be provided by the contractor to the COR prior to construction.

1.5 TEMPORARY FACILITIES

A. General: The contractor will be allowed to set up temporary facilities and controls as outlined. All temporary facilities and controls shall be removed from the site before final acceptance of the work.

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B. Temporary Utilities: The following utilities / services are available for use at the project site:

1. Electrical Power Service: Electrical power service is available from facilities at the project site for use on the contract without charge.

2. Sanitary Facilities: Restrooms are available at or near the project site for use on the contract without charge.

3. Telephone Cellular Service: The project site does have cellular service.

1.6 EXECUTION

A. Examination: Examine the housing units and verify the work as outlined in the scope of work.

B. Personnel: All Contractor personnel shall be fully clothed at all times while performing the services of this contract. “Fully Clothed” is deemed to mean that a shirt (or T-shirt), trousers, and shoes must be worn at all times. Tact, diplomacy, and courtesy shall be used at all times during contact with the community. Never, under any circumstances, shall the Contractor be unpleasant or use harsh, foul, or improper language. The Contractor shall at all times conduct work to assure the least possible disruption of activities of the general public.

C. Installation: Install all systems or components according to the specifications and manufacturer’s recommendations. All components shall be complete and operable.

D. Correction of the Work: Upon discovery of defects or damage of new work or to existing facilities damaged by new work, repair or replace damaged systems or components and restore substrates and finishes.

E. Final Cleaning & Waste Disposal: At the completion of the work, clean all surfaces and remove all waste materials, trash, tools, equipment, machinery, and surplus items from the project site and legally dispose of all waste items.

1.7 PROJECT SCHEDULE

General: Contractor shall email project schedule to project CO and COR and provide two (2) color copies after award and before design meeting. Schedule shall include detailed design phase with design deliverable submission dates, review periods, and summary construction schedule with important milestones included for both phases.

Fully develop construction portion of project schedule and email to Contracting Officer before Preconstruction meeting or construction begins. Update project schedule monthly throughout contract period until project substantial completion. Status date of each schedule update shall be 10 days before progress payment request date.

Construction work cannot begin until Government approval is obtained for:

• Shop Drawings for all atypical conditions

Purpose: Project schedule ensures adequate planning, coordinating, scheduling, and reporting of Contractor’s design and construction activities. Project schedule will assist Contractor and Contracting

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Officer to monitor work progress, evaluate proposed changes, and process Contractor's monthly progress payment requests.

Schedule Development: Project schedule shall cover entire contract period. Late finish date is same as contract’s established completion date.

Contractor shall use Critical Path Method (CPM) with limited use of lead or lag durations between schedule activities. Contractor's project schedule shall consist of procurement activities (including mobilization, submittal, and fabrication and delivery of key and long-lead procurement items) and construction activities.

Contractor's project schedule shall consist of, but not be limited to, the following for each activity:

• Identify activities and numbers numerically (maximum 5-digit). Number activities in increments of 10.

• Concisely describe work represented by activity (maximum 48 characters). Avoid using non-standard abbreviations. Limit work related to each activity to one work trade.

• Activity duration shall be in whole working days with maximum duration 7 work days each, unless otherwise approved by Contracting Officer, except for non-construction activities including mobilization, shop drawing and sample submittals, fabrication of materials, delivery of materials and equipment, and concrete curing.

Contractor shall ensure project schedule includes own work and Subcontractor work.

Project schedule shall show sequence and interdependence of activities required for complete performance of work and shall be cost and resource loaded. Contractor shall ensure work sequences are logical and project schedule shows a coordinated work plan and weather conditions. Proposed durations assigned to each activity shall be Contractor's best estimate of time required to complete activity, considering scope and resources planned. Resource loading of each activity shall list personnel by labor category and equipment type, and capacity proposed to complete activity in duration shown. Include permit requirements and constraints. Consider and include seasonal weather conditions in planning and scheduling of work influenced by high or low ambient temperatures and wind and/or precipitation, to ensure completion of work within contract time.

Project Schedule Updates

Weekly updates: Weekly updates of project schedule shall be an integral part and basic element of estimate upon which progress payments shall be made under this contract. If, in judgment of Contracting Officer, Contractor fails or refuses to provide schedule of values and complete schedule update or revision as specified hereinafter, Contractor shall be deemed to have not provided required information upon which progress payment may be made and shall be subject to retainage of a portion of the payment.

Narrative: Include in report:

• Brief description actual progress made during update period.

• Actual and potential delaying activities.

• Impediments to progress.

• Issues related to inclement weather.

• Progress toward established milestones.

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• Project float.

• Brief description of work anticipated to be performed in next month.

• Identify minor revisions to schedule for evaluation and accepted or rejected.

As work progresses, indicate Actual Completion percentage for each activity. If schedule update shows late finish date after contract completion date, at a minimum, include the following in narrative with submission:

• Known delays.

• Actions taken to get back on schedule.

• Pending modifications.

• Impediments or constraints affecting progress.

Progress Payments: Update currently accepted construction schedule monthly. If Contractor fails to provide weekly updates or revisions to currently accepted construction schedule, a portion of payment may be retained until updates/revisions made.

Time Impact Analysis for Contract Modifications, Changes, Delays, and Contractor Requests Requirements: When contract modifications or changes are initiated, delays are experienced, or Contractor revises project schedule, Contractor shall submit to Contracting Officer a written time impact analysis illustrating influence of each modification, change, delay, or Contractor’s request on the contract time.

• Time Extensions: Activity delays shall not automatically mean an extension of contract time is warranted or due to Contractor. It is possible that modification, change, or delay will not affect existing critical activities or cause non-critical activities to become critical. A modification, change, or delay may result in only absorbing a part of available total float that may exist within an activity chain of the project schedule, thereby not effecting the contract time. Time extensions will be granted according with terms of contract.

• Float: Float is not for exclusive use or benefit for NPS or Contractor. Extension of contract time is granted only to extent the equitable time adjustments to activity or activities affected by modification, change, or delay exceeds total (positive or zero) float available on a particular activity.

1.8 REQUIRED SUBMITTALS

A. No on-site work may occur before the COR approves appropriate submittals and CO issues a Notice to Proceed.

B. All submittals become the property of the Government.

C. Contractor must submit the following to COR at least seven calendar days before the pre- construction meeting.

1. List of proposed subcontractors.

2. List of proposed products showing manufacturers’ recommendations for installation.

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3. Initial Construction Progress Schedule (see construction project schedule above).

4. Accident Prevention Plan.

5. Before beginning work, report to Contracting Officer if any specification requirements conflict with product manufacturer's warranty requirements.

6. Letter designating the Project Superintendent.

7. Quality Control Plan.

8. Construction Waste Management and Disposal Plan

1.9 PRODUCT SELECTION PROCEDURES:

1. Product: Where Specifications name a single product and manufacturer, provide the named product that complies with requirements or approved equal.

2. Manufacturer/Source: Where Specifications name a single manufacturer or source, provide a product by the named manufacturer or source that complies with requirements or approved equal.

3. Products: Where Specifications include a list of names of both products and manufacturers, provide one of the products listed that complies with requirements or approved equal.

4. Manufacturers: Where Specifications include a list of manufacturers' names, provide a product by one of the manufacturers listed that complies with requirements or approved equal.

A. Approved Equals:

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

a. Drawings and samples as appropriate.

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

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

d. Name, address, and telephone number of the vendor.

e. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists.

Describe the availability of maintenance service and state sources of replacement materials.

2. A request for approval constitutes a representation that the Contractor:

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

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

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

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

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

1.10 CLOSEOUT

A. Inspection: Upon completion of the work, notify the Contracting Officer to request an inspection of the work in compliance with the contract.

B. Demonstration & Training: Provide onsite demonstration and training to NPS operators and staff on the proper, safe operation of all new systems and components.

C. As-build Drawings: Provide as-build drawings to the Contracting Officer.

D. Warranty: Provide all manufacturer’s product and warranty information to the Contracting Officer.

E. Weight tickets for recycled materials and for materials sent to landfill.

END OF SECTION

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SECTION 02 41 01 - SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Selective demolition of building elements for alteration purposes, including but not limited to.

1. Standing-Seam Metal Roof Panels

2. Sheathing

3. Insulation

4. Other items as required for completion of the work

1.2 REFERENCE STANDARDS

A. 29 CFR 1926 - U.S. Occupational Safety and Health Standards; current edition.

B. NFPA 241 - Standard for Safeguarding Construction, Alteration, and Demolition Operations; 2013.

PART 2 PRODUCTS – Not Used

PART 3 EXECUTION

3.1 GENERAL PROCEDURES AND PROJECT CONDITIONS

A. Do not begin general demolition until built elements to be salvaged or relocated have been removed.

B. Protect existing elements and finishes that are not to be removed.

C. Structural elements affected by demolition work

1. Expose concealed conditions affected by selective demolition activities to verify that work will not negatively affect or leave unsupported the remaining structural elements.

2. Provide bracing and shoring as required until identified elements can be removed and new support established for remaining components.

3. Prevent movement or settlement of adjacent construction.

4. Stop work immediately if adjacent construction or finishes appear to be in danger.

D. Hazardous Materials: Comply with 29 CFR 1926 and state and local regulations.

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1. If hazardous materials are discovered during removal operations, stop work and notify Contracting Officer; hazardous materials include regulated asbestos containing materials, lead, PCB's, and mercury.

E. Perform demolition in a manner that maximizes salvage and recycling of materials.

1. Dismantle existing construction and separate materials.

2. Set aside reusable, recyclable, and salvageable materials; store and deliver to collection point or point of reuse.

3.2 SELECTIVE DEMOLITION EXECUTION

A. Drawings showing existing construction and utilities are based on casual field observation and existing record documents only.

1. Verify that construction and utility arrangements are as shown.

2. Report discrepancies to Contracting Officer before disturbing existing installation.

3. Beginning of demolition work constitutes acceptance of existing conditions that would be apparent upon examination prior to starting demolition.

4. Report findings of concealed structural damage, deteriorated materials or other unexpected conditions to Contracting Officer before proceeding with the work.

B. Separate areas in which demolition is being conducted from other areas that are still occupied.

C. Maintain weatherproof exterior building enclosure except for interruptions required for replacement or modifications; take care to prevent water and humidity damage.

D. Remove existing work as indicated and as required to accomplish new work.

1. Remove items indicated on drawings.

2. Items to be removed include, but are not limited to: Metal roofing, roof sheathing, underlayment, and insulation.

3. Unless noted as salvaged, all demolition materials become the responsibility of the Contractor and are to be removed from the site.

E. Salvage:

1. Specific items to be salvaged are indicated in the drawings.

2. General items to be salvaged and returned to the Government include:

3. General items to be salvaged for reuse and reinstallation include:

a. Wood siding, Facias, other misc. extant wood trim.

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4. Protect items to be salvaged from damage until they can be removed and relocated.

5. Carefully remove items to be salvaged and protect from damage.

6. Store salvaged items and protect from damage until they can be reinstalled or delivered to the locations designated.

7. Verify with the Contracting Officer where and how salvaged items designated to be returned to the Government are to be delivered.

8. Prepare an itemized list of all salvage items to be returned to the Government.

F. Protect existing work to remain.

1. Protect all finishes not indicated as being removed

2. Prevent movement of structure; provide shoring and bracing if necessary.

3. Perform cutting to accomplish removals neatly and as specified for cutting new work.

4. Repair adjacent construction and finishes damaged during removal work.

5. Patch as specified for patching new work.

3.3 DEBRIS AND WASTE REMOVAL

A. Remove debris, junk, and trash from site.

B. Remove from site all materials not to be reused on site; materials identified as recyclable will be disposed of at a licensed recycle facility.

C. Leave site in clean condition, ready for subsequent work.

D. Clean up spillage and wind-blown debris from public and private lands.

END OF SECTION 02 41 01

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SECTION 06 10 00 - ROUGH CARPENTRY

1.1 SUMMARY

A. Section Includes:

1. Facias and misc. trim.

2. Other items as required for completion of the work

B. Related Requirements:

1. Section 061600 "Sheathing."

1.2 DEFINITIONS

A. Dimension Lumber: Lumber of 2 inches nominal or greater but less than 5 inches nominal in least dimension.

B. Lumber grading agencies, and the abbreviations used to reference them, include the following:

1. NLGA: National Lumber Grades Authority.

2. SPIB: The Southern Pine Inspection Bureau.

3. WCLIB: West Coast Lumber Inspection Bureau.

4. WWPA: Western Wood Products Association.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product. Indicate component materials and dimensions and include construction and application details.

1. Include data for wood-preservative treatment from chemical treatment manufacturer and certification by treating plant that treated materials comply with requirements. Indicate type of preservative used and net amount of preservative retained.

2. Include data for fire-retardant treatment from chemical treatment manufacturer and certification by treating plant that treated materials comply with requirements. Include physical properties of treated materials based on testing by a qualified independent testing agency.

3. For fire-retardant treatments, include physical properties of treated lumber both before and after exposure to elevated temperatures, based on testing by a qualified independent testing agency according to ASTM D 5664.

4. For products receiving a waterborne treatment, include statement that moisture content of treated materials was reduced to levels specified before shipment to Project site.

5. Include copies of warranties from chemical treatment manufacturers for each type of treatment.

1.4 INFORMATIONAL SUBMITTALS

A. Evaluation Reports: For the following, from International Code Council Evaluation Service:

1. Wood-preservative-treated wood.

2. Fire-retardant-treated wood.

3. Power-driven fasteners.

4. Expansion anchors.

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1.5 QUALITY ASSURANCE

A. Testing Agency Qualifications: For testing agency providing classification marking for fire-retardant treated material, an inspection agency acceptable to authorities having jurisdiction that periodically performs inspections to verify that the material bearing the classification marking is representative of the material tested.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Stack lumber flat with spacers beneath and between each bundle to provide air circulation. Protect lumber from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings.

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Certified Wood: Materials shall be produced from wood obtained from forests certified by an FSC-accredited certification body to comply with FSC STD-01-001, "FSC Principles and Criteria for Forest Stewardship.

B. Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, provide lumber that complies with the applicable rules of any rules-writing agency certified by the ALSC Board of Review. Provide lumber graded by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated.

1. Factory mark each piece of lumber with grade stamp of grading agency.

2. Where nominal sizes are indicated, provide actual sizes required by DOC PS 20 for moisture content specified. Where actual sizes are indicated, they are minimum dressed sizes for dry lumber.

3. Provide dressed lumber, S4S, unless otherwise indicated.

C. Maximum Moisture Content of Lumber: 15 percent for 2-inch nominal thickness or less, 19 percent for more than 2-inch nominal thickness unless otherwise indicated.

2.2 WOOD-PRESERVATIVE-TREATED LUMBER

A. Preservative Treatment by Pressure Process: AWPA U1; Use Category UC2.

1. Preservative Chemicals: Acceptable to authorities having jurisdiction and containing no arsenic or chromium.

B. Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. Do not use material that is warped or that does not comply with requirements for untreated material.

C. Mark lumber with treatment quality mark of an inspection agency approved by the ALSC Board of Review.

D. Application: Treat the following:

1. Wood facias, curbs, blocking, stripping, and similar members in connection with roofing, flashing, vapor barriers, and waterproofing.

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2.3 MISCELLANEOUS LUMBER

A. General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following:

1. Facias.

2. Blocking.

3. Nailers.

4. Furring.

5. Trim.

B. For items of dimension lumber size, provide Construction or No. 2 grade lumber and any of the following species:

1. Hem-fir (north); NLGA.

2. Mixed southern pine; SPIB.

3. Hem-fir; WCLIB or WWPA.

C. For blocking and nailers used for attachment of other construction, select and cut lumber to eliminate knots and other defects that will interfere with attachment of other work.

2.4 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture.

1. Where rough carpentry is exposed to weather, in ground contact, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M or of Type 304 stainless steel.

2. At pressure-preservative treated or fire-retardent treated wood locations, use Type 304 stainless steel.

B. Nails, Brads, and Staples: ASTM F 1667.

C. Power-Driven Fasteners: Fastener systems with an evaluation report acceptable to authorities having jurisdiction, based on ICC-ES AC70.

D. Screws for Fastening Sheathing to Wood Framing: ASTM C 1002.

E. Wood Screws: ASME B18.6.1.

F. Lag Bolts: ASME B18.2.1.

G. Bolts: Steel bolts complying with ASTM A 307, Grade A; with ASTM A 563 hex nuts and, where indicated, flat washers.

H. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated below with capability to sustain, without failure, a load equal to six times the load imposed when installed in unit masonry assemblies and equal to four times the load imposed when installed in concrete as determined by testing per ASTM E 488 conducted by a qualified independent testing and inspecting agency.

1. Material: Carbon-steel components, zinc plated to comply with ASTM B 633, Class Fe/Zn 5.

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PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Set rough carpentry to required levels and lines, with members plumb, true to line, cut, and fitted.

Fit rough carpentry to other construction; scribe and cope as needed for accurate fit. Locate furring, nailers, blocking, grounds, and similar supports to comply with requirements for attaching other construction.

B. Framing Standard: Comply with AF&PA's WCD 1, "Details for Conventional Wood Frame Construction," unless otherwise indicated.

C. Do not splice members between supports unless otherwise indicated.

D. Provide blocking and framing as indicated and as required to support facing materials, fixtures, specialty items, and trim.

E. Sort and select lumber so that natural characteristics will not interfere with installation or with fastening other materials to lumber. Do not use materials with defects that interfere with function of member or pieces that are too small to use with minimum number of joints or optimum joint arrangement.

F. Comply with AWPA M4 for applying field treatment to cut surfaces of preservative-treated lumber.

1. Use inorganic boron for items that are continuously protected from liquid water.

2. Use copper naphthenate for items not continuously protected from liquid water.

G. Securely attach rough carpentry work to substrate by anchoring and fastening as indicated, complying with the following:

1. NES NER-272 for power-driven fasteners.

2. Table 2304.9.1, "Fastening Schedule," in ICC's International Building Code.

H. Use screw or bolt fasteners unless otherwise indicated. Make tight connections between members. Install fasteners without splitting wood. Slightly countersink fastener heads, unless otherwise indicated.

3.2 WOOD BLOCKING AND NAILER INSTALLATION

A. Install where required for attaching other work. Form to shapes indicated and cut as required for true line and level of attached work. Coordinate locations with other work involved.

B. Attach items to substrates to support applied loading. Recess bolts and nuts flush with surfaces unless otherwise indicated.

3.3 PROTECTION

A. Prevent direct contact between preservative-treated wood members and aluminum building components with either a minimum 1/4 inch polyethylene or nylon spacer or a minimum 10 mil polyethylene separation film.

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B. Protect rough carpentry from weather. If, despite protection, rough carpentry becomes wet, apply EPA-registered borate treatment. Apply borate solution by spraying to comply with EPA-registered label.

END OF SECTION 06 10 00

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SECTION 06 16 00 - SHEATHING

1.1 SUMMARY

A. Section Includes:

1. Roof sheathing.

B. Related Requirements:

1. Section 061000 "Rough Carpentry" for plywood backing panels.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product. Indicate component materials and dimensions and include construction and application details. All existing sheathing will be replaced.

1. Include data for fire-retardant treatment from chemical treatment manufacturer and certification by treating plant that treated plywood complies with requirements. Include physical properties of treated materials.

2. For fire-retardant treatments, include physical properties of treated plywood both before and after exposure to elevated temperatures, based on testing by a qualified independent testing agency according to ASTM D 5516.

3. Include copies of warranties from chemical treatment manufacturers for each type of treatment.

1.3 QUALITY ASSURANCE

A. Testing Agency Qualifications: For testing agency providing classification marking for fire-retardant-treated material, an inspection agency acceptable to authorities having jurisdiction that periodically performs inspections to verify that the material bearing the classification marking is representative of the material tested.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Stack panels flat with spacers beneath and between each bundle to provide air circulation. Protect sheathing from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Fire-Test-Response Characteristics: For assemblies with fire-resistance ratings, provide materials and construction identical to those of assemblies tested for fire resistance per ASTM E 119 by a testing and inspecting agency acceptable to authorities having jurisdiction.

1. Fire-Resistance Ratings: Indicated by design designations from UL's "Fire Resistance

Directory.".

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2.2 WOOD PANEL PRODUCTS

A. Plywood: Shall bear APA grade-trademark

B. Thickness: As needed to comply with requirements specified, but not less than thickness indicated under “2.4 Roof Sheathing”.

C. Factory mark panels to indicate compliance with applicable standard.

2.3 FIRE-RETARDANT-TREATED PLYWOOD

A. General: Where fire-retardant-treated materials are indicated, use materials complying with requirements in this article that are acceptable to authorities having jurisdiction and with fire-test-response characteristics specified as determined by testing identical products per test method indicated by a qualified testing agency.

B. Fire-Retardant-Treated Plywood by Pressure Process: Products with a flame-spread index of 25 or less when tested according to ASTM E 84, and with no evidence of significant progressive combustion when the test is extended an additional 20 minutes, and with the flame front not extending more than 10.5 feet beyond the centerline of the burners at any time during the test.

1. Use treatment that does not promote corrosion of metal fasteners.

2. Interior Type A: Treated materials shall have a moisture content of 28 percent or less when tested according to ASTM D 3201 at 92 percent relative humidity. Use where exterior type is not indicated.

C. Kiln-dry material after treatment to a maximum moisture content of 15 percent. Do not use material that is warped or does not comply with requirements for untreated material.

D. Identify fire-retardant-treated plywood with appropriate classification marking of qualified testing agency.

E. Application: Treat all plywood unless otherwise indicated.

2.4 ROOF SHEATHING

A. Plywood Sheathing: APA grade-trademark, Exterior sheathing.

1. Span Rating: Not less than 40/20.

2. Nominal Thickness: Not less than 5/8 inch (16 mm).

2.5 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture.

1. For roof sheathing, provide fasteners with hot-dip zinc coating complying with

ASTM A 153/A 153M or Type 304 stainless steel.

2. For roof sheathing, provide fasteners with organic-polymer or other corrosion-protective coating having a salt-spray resistance of more than 800 hours according to ASTM B 117.

B. Nails, Brads, and Staples: ASTM F 1667.

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C. Power-Driven Fasteners: Fastener systems with an evaluation report acceptable to authorities having jurisdiction, based on ICC-ES AC70.

D. Screws for Fastening Sheathing to Wood Framing: ASTM C 1002.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Do not use materials with defects that impair quality of sheathing or pieces that are too small to use with minimum number of joints or optimum joint arrangement. Arrange joints so that pieces do not span between fewer than three support members.

B. Cut panels at penetrations, edges, and other obstructions of work; fit tightly against abutting construction unless otherwise indicated.

C. Securely attach to substrate by fastening as indicated, complying with the following:

1. Table 2304.9.1, "Fastening Schedule," in the ICC's International Building Code.

2. Table R602.3(1), "Fastener Schedule for Structural Members," and Table R602.3(2), "Alternate Attachments," in the ICC's International Residential Code for One- and Two- Family Dwellings.

3. ICC-ES evaluation report for fastener.

D. Coordinate roof sheathing installation with flashing and joint-sealant installation so these materials are installed in sequence and manner that prevent exterior moisture from passing through completed assembly.

E. Do not bridge building expansion joints; cut and space edges of panels to match spacing of structural support elements.

F. Coordinate sheathing installation with installation of materials installed over sheathing so sheathing is not exposed to precipitation or left exposed at end of the workday when rain is forecast.

3.2 WOOD STRUCTURAL PANEL INSTALLATION

A. General: Comply with applicable recommendations in APA Form No. E30, "Engineered Wood Construction Guide," for types of structural-use panels and applications indicated.

B. Fastening Methods: Fasten panels as indicated below:

1. Roof Sheathing:

a. Nail to wood framing.

b. Space panels 1/8 inch apart at edges and ends, with PSCL 5/8 in. 20-Gauge

Galvanized Panel Sheathing Clip to brace unsupported panel edges where sheathing meets edge-to-edge without a rafter for support.

END OF SECTION 06 16 00

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SECTION 07 21 00 - THERMAL INSULATION

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Spray polyurethane foam insulation.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

1.4 INFORMATIONAL SUBMITTALS

A. Evaluation Reports: For spray-applied polyurethane foam-plastic insulation, from ICC-ES.

1.5 QUALITY ASSURANCE

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

1.6 DELIVERY, STORAGE, AND HANDLING

A. Protect insulation materials from physical damage and from deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's written instructions for handling, storing, and protecting during installation.

B. Protect foam-plastic board insulation as follows:

1. Do not expose to sunlight except to necessary extent for period of installation and concealment.

2. Protect against ignition at all times. Do not deliver insulation materials to Project site before installation time.

3. Quickly complete installation and concealment of insulation in each area of construction.

PART 2 - PRODUCTS

2.1 SPRAY POLYURETHANE FOAM INSULATION

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

1. BASF Corporation.

2. BaySystems NorthAmerica, LLC.

3. Demilec, Inc.

4. Dow Chemical Company (The).

5. Henry Company.

6. Icynene Inc.

BIHO – PMIS #258202 Page 21

7. Johns Manville.

8. NCFI; Division of Barnhardt Mfg. Co.

B. Closed-Cell Spray Polyurethane Foam Insulation: ASTM C 1029, Type II, with minimum density of 2.0 lb/cu. ft. and minimum aged R-value at 1-inch thickness of 7 deg F x h x sq. ft./Btu at 75 deg F.

1. Fire Propagation Characteristics: Passes NFPA 285 testing as part of an approved assembly.

2. Water Vapor Transmission: ASTM E 96 (Desiccant Method), not greater than 1.0 perms at 1-1/2-inch thickness.

3. Provide spray applied thermal barrier over spray foam insulation at exposed locations as required by applicable code.

4. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

a. Flame-Spread Index: 25 or less.

b. Smoke-Developed Index: 450 or less.

C. Primer: Material recommended by insulation manufacturer where required for adhesion of insulation to substrates.

D. Thermal Barrier: Spray-applied thermal and ignition barrier tested to the criteria of an NFPA 286, UL 1715, UL 1040, or FM 4880 for duration of 15 minutes by an accredited fire testing facility;

approved for use over spray polyurethane foam insulation by spray foam manufacturer;

containing no formaldehyde; and in compliance with the following:

1. Passed CAL 1350 safe for use in schools and high occupancy buildings.

2. Passed strict EPA – V.O.C. and AQMD air emission requirements (for all 50 states).

PART 3 - EXECUTION

3.1 PREPARATION

A. Clean substrates of substances that are harmful to insulation, including removing projections capable of puncturing insulation, or that interfere with insulation attachment.

3.2 INSTALLATION, GENERAL

A. Comply with insulation manufacturer's written instructions applicable to products and applications indicated.

B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

C. Install insulation with manufacturer's R-value label exposed after insulation is installed.

D. Extend insulation to envelop entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

E. Provide sizes to fit applications indicated and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units unless multiple layers are otherwise shown or required to make up total thickness or to achieve R-value.

BIHO – PMIS #258202 Page 22

F. Chemical Temperature: Chemical temperatures inside the tanks/kits must be between 70°–90°F (21°–32°C) during use. Warming chemicals inside the tanks to proper temperatures may require up to 36 hours. Store at room temperature (60°–90°F / 16°–32°C), in a dry area, for at least one day prior to use. Do not expose kits or cylinders to open flame, temperatures above 120°F (49°C) or kerosene heaters. Gently rock tanks during warming process to evenly distribute chemical temperature.

G. Surface Temperature: All surfaces should be clean/dry and temperature between 60°–90°F (16°– 32°C) prior to application. Low surface temperatures will absorb heat from the foam’s chemical reaction, which will both prevent the foam from adhering to the surface and reduce the yield of your foam kit.

H. Ambient Air Temperature: Ensure the ambient air temperature of your work area is between 60°– 90°F (16°–32°C) during application.

3.3 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION

A. Apply insulation units to substrates by method indicated, complying with manufacturer's written instructions. If no specific method is indicated, bond units to substrate with adhesive or use mechanical anchorage to provide permanent placement and support of units.

B. Blanket Insulation: Install in cavities formed by framing members according to the following requirements:

1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members.

C. Spray-Applied Insulation: Comply with insulation manufacturer's written instructions applicable to products and applications.

1. Prime substrates where recommended by insulation manufacturer. Confine primers to areas to be insulated; do not allow spillage or migration onto adjoining surfaces.

2. Do not apply insulation until installation of pipes, ducts, conduits, wiring, and electrical outlets in walls is completed and windows, electrical boxes, and other items not indicated to receive insulation are masked.

3. Spray insulation to envelop entire area to be insulated and fill voids.

4. Apply in multiple passes to not exceed maximum thicknesses recommended by manufacturer. Do not spray into rising foam.

5. Framed Construction: Install into cavities formed by framing members to achieve R-value indicated on Drawings.

6. Where full depth of cavity is filled, make insulation flush with face of studs by using method recommended by insulation manufacturer.

D. Miscellaneous Voids: Install insulation in miscellaneous voids and cavity spaces where required to prevent gaps in insulation using the following materials:

1. Spray Polyurethane Insulation: Apply according to manufacturer's written instructions.

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3.4 PROTECTION

A. Protect installed insulation from damage due to harmful weather exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation.

END OF SECTION 07 21 00

BIHO – PMIS #258202 Page 24

SECTION 07 41 13.16 - STANDING-SEAM METAL ROOF PANELS

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Standing-seam metal roof panels.

2. Underlayment materials.

3. Gutters and downspouts.

4. Flashings and trim.

5. Snow guards.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1. Meet with Owner, metal panel Installer, metal panel manufacturer's representative, structural-support Installer, and installers whose work interfaces with or affects metal panels, including installers of roof accessories and roof-mounted equipment.

2. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

3. Review methods and procedures related to metal panel installation, including manufacturer's written instructions.

4. Examine support conditions for compliance with requirements, including alignment between and attachment to structural members.

5. Review structural loading limitations of deck and roof structure during and after roofing.

6. Review flashings, special details, drainage, penetrations, equipment curbs, and condition of other construction that affect metal panels.

7. Review governing regulations and requirements for insurance, certificates, and tests and inspections if applicable.

8. Review temporary protection requirements for metal panel systems during and after installation.

9. Review procedures for repair of metal panels damaged after installation.

10. Document proceedings, including corrective measures and actions required, and furnish copy of record to each participant.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of panel and accessory. Metal panels must comply with EPA CPG recycled content requirement.

2. Provide manufacturer’s cut sheet or statement that metal panels comply with EPA CPG recycled content requirement.

Comprehensive Procurement Guidelines for Construction Products | US EPA https://www.epa.gov/smm/comprehensive-procurement-guidelines-construction-products

BIHO – PMIS #258202 Page 25

B. Shop Drawings:

1. Include fabrication and installation layouts of metal panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details.

2. Accessories: Include details of the flashing, trim, and anchorage systems, at a scale of not less than 1-1/2 inches per 12 inches.

C. Samples for Initial Selection: For each type of metal panel indicated with factory-applied color finishes.

1. Include similar Samples of trim and accessories involving color selection.

D. Samples for Verification: For each type of exposed finish required, prepared on Samples of size indicated below.

1. Metal Panels: 12 inches long by actual panel width. Include clips, fasteners, closures, and other metal panel accessories.

1.5 INFORMATIONAL SUBMITTALS

A. Sample Warranties: For special warranties.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For metal panels to include in maintenance manuals.

1.7 QUALITY ASSURANCE

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Deliver components, metal panels, and other manufactured items so as not to be damaged or deformed. Package metal panels for protection during transportation and handling.

B. Unload, store, and erect metal panels in a manner to prevent bending, warping, twisting, and surface damage.

C. Stack metal panels horizontally on platforms or pallets, covered with suitable weathertight and ventilated covering. Store metal panels to ensure dryness, with positive slope for drainage of water. Do not store metal panels in contact with other materials that might cause staining, denting, or other surface damage.

D. Retain strippable protective covering on metal panels during installation.

1.9 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit assembly of metal panels to be performed according to manufacturers' written instructions and warranty requirements.

B. Field Measurements: Verify actual dimensions of construction contiguous with metal roof panels by field measurements before fabrication.

BIHO – PMIS #258202 Page 26

1.10 COORDINATION

A. Coordinate sizes and locations of roof curbs, equipment supports, and roof penetrations with actual equipment provided.

B. Coordinate metal panel installation with rain drainage work, flashing, trim, construction of soffits, and other adjoining work to provide a leakproof, secure, and noncorrosive installation.

1.11 WARRANTY

A. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal panels that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following:

a. Color fading more than 5 Delta E units when tested according to ASTM D2244.

b. Chalking in excess of a No. 8 rating when tested according to ASTM D4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

2. Finish Warranty Period: 20 years from date of Substantial Completion.

B. Special Weathertightness Warranty: Manufacturer's no-dollar-limit warranty in which manufacturer agrees to repair or replace standing-seam metal roof panel assemblies, including related trim, that fail to remain weathertight, including leaks, within specified warranty period.

1. Warranty Period: 20 years from date of Substantial…