2. Bradford Warehouse Roof Repair & Replacement Specifications.pdf

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BRD ADMIN SITE REPAIRS (Warehouse Roof Repair & Replacement)
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12445524Q0133
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This document contains specifications for the repair and replacement of a roof at the Bradford District Office compound in the Allegheny National Forest. The key details are:

The project involves the removal and disposal of the existing roof, inspection and repair of the roof sheathing and support structure, and installation of new roofing materials including asphalt shingles, underlayment, drip edge, and ridge vents. The work is to be completed in one phase. The contractor must provide all equipment, labor, materials, and tools necessary to perform the work. The contractor will have limited use of the site, with restrictions on work hours, noise, and disruption to the owner's operations. The owner will remain partially occupying the premises during construction. The project will be procured using Simplified Acquisition Procedures and awarded as a Firm-Fixed Price contract.

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ANF ROOFING PROJECTS – BRADFORD WAREHOUSE ROOF REPAIR & REPLACEMENT

Allegheny National Forest

Bradford Ranger District

Bradford Warehouse Roof Repair & Replacement

SPECIFICATIONS

TABLE OF CONTENTS

SECTION PAGE

011000 – SUMMARY 2

017419 – CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL 5

024119 – SELECTIVE DEMOLITION 8

070150.19 – PREPARATION FOR ROOFING 11

073113 – ASPHALT SHINGLES 14

077100 – ROOF SPECIALTIES 19

SECTION 011000 – SUMMARY

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes:

1. Project information.

2. Work covered by contract documents.

3. Phased construction.

4. Work under owner's separate contracts.

5. Owner-Furnished/Contractor-Installed (OFCI) products.

6. Contractor's use of site and premises.

7. Coordination with occupants.

8. Work restrictions.

9. Specification and drawing conventions.

B. Related Requirements:

1. Section 015000 – Temporary Facilities and Controls, for limitations and procedures governing temporary use of Owner's facilities.

1.2 PROJECT INFORMATION

A. Project Identification: Bradford District Office – Roofing Repair & Replacement

1. Project Location: Allegheny National Forest / Bradford District Office / Bradford, PA

B. Owner: USDA Forest Service C. Engineer: USDA Forest Service – Allegheny National Forest Engineering

1.3 WORK COVERED BY CONTRACT DOCUMENTS

A. The Work of Project is defined by the Contract Documents and consists of the following:

Contractor shall provide all equipment, labor, materials, tools, and other incidentals to perform all work necessary and required for the construction of the project as indicated. This project is for the repair and replacement of one roof at the Bradford District Office compound. Such work includes but is not limited to removal and disposal of existing shingles; inspection of roof sheathing and support structure; provide and install roof sheathing and support structure repairs, as necessary; provide and install asphalt roofing shingles, and underlayment as specified. Provide update of existing conditions to the Contracting Officer’s Representative (COR). If existing conditions are failing, they will need to be replaced prior to installing new underlayment and shingles. If existing soffit is damaged because of replacing fascia board, the soffit shall be replaced in-kind. After inspection is complete and repairs have been made as necessary, proceed with the roof replacement to include new drip edge, ice and water shield, synthetic roofing underlayment, architectural asphalt shingles and ridge vent. Ice & water shield along with an approved shingle ‘weave’ shall be used in all valleys. All colors shall match existing. Repairs necessary prior to underlayment and shingle replacement shall be brought up to the Contracting Officer, or their representative, for evaluation prior to any work being performed.

1.4 PHASED CONSTRUCTION

A. The Work shall be conducted in one phase.

1.5 CONTRACTOR'S USE OF SITE AND PREMISES

A. Unrestricted Use of Site: Contractor shall have full use of Project Site for construction operations during construction period. Contractor's use of Project Site is limited only by Owner's right to perform work or to retain other contractors on portions of Project.

B. Restricted Use of Site: Contractor shall have limited use of Project Site for construction operations as indicated on Drawings by the Contract limits and as indicated by requirements of this section.

C. Limits On Use of Site: Limit use of Project Site to, as indicated. Do not disturb portions of Project Site beyond areas in which the Work is indicated.

1. Limits On Use of Site: Confine construction operations to roofs being replaced and the area immediately surrounding the buildings receiving the work.

2. Driveways, Walkways, and Entrances: Keep driveways, walkways, and entrances serving premises clear and available to Owner, Owner's employees, and emergency vehicles at-all-times. Do not use these areas for parking or for storage of materials.

D. Condition of Existing Building: Maintain portions of existing building affected by construction operations in a weathertight condition throughout the construction period. Repair any damage caused by construction operations.

E. Condition of Existing Grounds: Maintain portions of existing grounds, landscaping, and hardscaping affected by construction operations throughout the construction period. Repair damage caused by construction operations.

1.6 COORDINATION WITH OCCUPANTS

A. Full Owner Occupancy: Owner will occupy site and all buildings on site during entire construction period. Coordinate and cooperate with Owner during construction operations to minimize conflicts and facilitate Owner usage. Perform The Work so as not to interfere with Owner's day-to-day operations. Maintain existing exits unless otherwise indicated.

B. Partial Owner Occupancy: Owner will occupy the premises during entire construction period with-the-exception-of areas under construction. Coordinate and cooperate with Owner during construction operations to minimize conflicts and facilitate Owner usage. Perform The Work so as not to interfere with Owner's day-to-day operations. Maintain existing exits unless otherwise indicated.

C. Owner Limited Occupancy of Completed Areas of Construction: Owner reserves the right to occupy and to place and install equipment in completed portions of The Work, prior to substantial completion of The Work, provided such occupancy does not interfere with completion of The Work. Such placement of equipment and limited occupancy shall not constitute acceptance of the total Work.

1.7 WORK RESTRICTIONS

A. Comply with restrictions on construction operations.

1. Comply with limitations on use of public streets, work on public streets, rights-of-way, and other requirements of authorities having jurisdiction.

B. On-Site Work Hours: Limit work on the existing buildings to normal business working hours of

8:00 a.m. to 5:00 p.m., Monday through Friday, unless otherwise indicated.

C. Noise, Vibration, Dust, and Odors: Coordinate operations that may result in high levels of noise, vibration, dust, odors, or other disruptions to Owner occupancy with Owner.

1. Notify site manager not less than 5 business days in advance of proposed disruptive operations.

2. Obtain site manager’s written permission before proceeding with disruptive operations.

D. Smoking and Controlled Substance Restrictions: Use of tobacco products, alcoholic beverages, and other controlled substances on Project Site is not permitted.

1.8 SPECIFICATION AND DRAWING CONVENTIONS

A. Specification Content: The Specifications use certain conventions for the style of language and the intended meaning of certain terms, words, and phrases when used in-particular situations.

These conventions are as follows:

1. Imperative mood and streamlined language are generally used in the Specifications. The words "shall," "shall be," or "shall comply with," depending on the context, are implied where a colon (:) is used within a sentence or phrase.

2. Text Color: Text used in the Specifications including units of measure, manufacturer and product names, and other text may appear in multiple colors or underlined as part of a hyperlink; no emphasis is implied by text with these characteristics.

3. Hypertext: Text used in the Specifications may contain hyperlinks. Hyperlinks may allow for access to linked information that is not residing in the Specifications. Unless otherwise indicated, linked information is not part of the Contract Documents.

4. Specification requirements are to be performed by Contractor unless specifically stated otherwise.

B. Division 00 Contracting Requirements: General provisions of the Contract, including General and Supplementary Conditions, apply to all Sections of the Specifications.

C. Division 01 General Requirements: Requirements of Sections in Division 01 apply to The Work of all Sections in the Specifications.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 011000

SECTION 017419 – CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

1.1 SUMMARY

A. Section Includes administrative and procedural requirement for the following:

1. Salvaging nonhazardous demolition and construction waste.

2. Recycling nonhazardous demolition and construction waste.

3. Disposing of nonhazardous demolition and construction waste.

1.2 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

1. Carefully salvage in a manner to prevent damage and promptly return to Owner.

1.3 DEFINITIONS

A. Construction Waste: Building and site improvement materials and other solid waste resulting from construction, remodeling, renovation, or repair operations. Construction waste includes packaging.

B. Demolition Waste: Building and site improvement materials resulting from demolition or selective demolition operations.

C. Disposal: Removal off-site of demolition and construction waste and subsequent sale, recycling, reuse, or deposit in landfill or incinerator acceptable to authorities having jurisdiction.

D. Recycle: Recovery of demolition or construction waste for subsequent processing in preparation for reuse.

E. Salvage: Recovery of demolition or construction waste and subsequent sale or reuse in another facility.

F. Salvage and Reuse: Recovery of demolition or construction waste and subsequent incorporation into The Work.

1.4 INFORMATIONAL SUBMITTALS

A. Waste Management Plan: Submit 1 copy of plan within 30 days of date established for the

Notice to Proceed.

B. Waste Reduction Progress Reports: Concurrent with each Application for Payment, submit 3 copies of report. Include separate reports for demolition and construction waste. Include the following information:

1. Material category.

2. Generation point-of-waste.

3. Total quantity of waste in tons.

4. Quantity of waste salvaged, both estimated and actual in tons.

5. Quantity of waste recycled, both estimated and actual in tons.

6. Total quantity of waste recovered (salvaged plus recycled) in tons.

7. Total quantity of waste recovered (salvaged plus recycled) as a percentage of total waste.

C. Waste Reduction Calculations: Before request for Substantial Completion, submit three copies of calculated end-of-Project rates for salvage, recycling, and disposal as a percentage of total waste generated by The Work.

D. Records of Donations: Indicate receipt and acceptance of salvageable waste donated to individuals and organizations. Indicate whether organization is tax exempt.

E. Records of Sales: Indicate receipt and acceptance of salvageable waste sold to individuals and organizations. Indicate whether organization is tax exempt.

F. Recycling and Processing Facility Records: Indicate receipt and acceptance of recyclable waste by recycling and processing facilities licensed to accept them. Include manifests, weight tickets, receipts, and invoices.

G. Landfill and Incinerator Disposal Records: Indicate receipt and acceptance of waste by landfills and incinerator facilities licensed to accept them. Include manifests, weight tickets, receipts, and invoices.

H. LEED Submittal: LEED letter template for Credit MR 2.1, signed by Contractor, tabulating total waste material, quantities diverted and means by which it is diverted, and statement that requirements for the credit have been met.

I. Qualification Data: For waste management coordinator and refrigerant recovery technician.

J. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that recovery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

1.5 CLOSEOUT SUBMITTALS

A. Inventory of items that have been removed and salvaged.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 PLAN IMPLEMENTATION

A. General: Implement approved waste management plan. Provide handling, containers, storage, signage, transportation, and other items as required to implement waste management plan during the entire duration of the Contract.

B. Waste Management Coordinator: Engage a waste management coordinator to be responsible for implementing, monitoring, and reporting status of waste management work plan.

Coordinator shall be present at Project site full time for duration of Project.

C. Training: Train workers, subcontractors, and suppliers on proper waste management procedures, as appropriate, for The Work.

1. Distribute waste management plan to everyone concerned within three days of submittal return.

2. Distribute waste management plan to entities when they first begin work on-site. Review plan procedures and locations established for salvage, recycling, and disposal.

D. Site Access and Temporary Controls: Conduct waste management operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

1. Designate a specific area on Project site necessary for separating materials that are to be salvaged, recycled, reused, donated, and sold.

3.2 SALVAGING DEMOLITION WASTE

A. Salvaged Items for Reuse in the Work: Salvage items for reuse and handle as follows:

1. Clean salvaged items.

2. Pack or crate items after cleaning. Identify contents of containers with label indicating elements, date of removal, quantity, and location where removed.

3. Store items in a secure area until installation.

4. Protect items from damage during transport and storage.

5. Install salvaged items to comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make items functional for use indicated.

B. Salvaged Items for Sale and Donation: Not permitted on Project site.

3.3 DISPOSAL OF WASTE

A. General: Except for items or materials to be salvaged, recycled, or otherwise reused, remove waste materials from Project site and legally dispose of them in a landfill or incinerator acceptable to authorities having jurisdiction.

1. Except as otherwise specified, do not allow waste materials that are to be disposed of accumulate on-site.

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

B. Burning: Do not burn waste materials.

C. Disposal: Remove waste materials from Owner's property and legally dispose of them.

END OF SECTION 017419

SECTION 024119 – SELECTIVE DEMOLITION

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building or structure.

2. Demolition and removal of selected site elements.

3. Salvage of existing items to be reused or recycled.

1.2 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor and shall be disposed of properly in an off-Forest Service property disposal location.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

1. Carefully salvage in a manner to prevent damage and promptly return to Owner.

1.3 PRE-INSTALLATION MEETINGS

A. Pre-Demolition Conference: Conduct conference during pre-construction meeting.

1.4 INFORMATIONAL SUBMITTALS

A. Schedule of selective demolition activities with starting and ending dates for each activity.

B. Pre-Demolition photographs or video.

1.5 CLOSEOUT SUBMITTALS

A. Inventory of items that have been removed and salvaged.

1.6 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.

Conduct selective demolition so Owner's operations will not be disrupted.

B. Notify Contracting Officer’s Representative of discrepancies between existing conditions and drawings before proceeding with selective demolition.

C. Hazardous Materials: It is not anticipated that hazardous materials will be encountered in The Work.

1. If suspected hazardous materials are encountered, do not disturb, immediately notify

Contracting Officer’s Representative and Owner. Hazardous materials will be removed by Owner under a separate contract.

D. Storage or sale of removed items or materials on-site is not permitted.

E. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire protection facilities in service during selective demolition operations.

F. Arrange selective demolition schedule so as not to interfere with Owner's operations.

1.7 WARRANTY

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

PART 2 – PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

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

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

PART 3 – EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

C. Inventory and record the condition of items to be removed and salvaged.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

3.3 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. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping.

Temporarily cover openings to remain.

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire suppression devices during flame cutting operations.

4. Maintain fire watch during and for at least four (4) hours after flame-cutting operations.

5. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

6. Dispose of demolished items and materials promptly. Comply with requirements in Section

017419 "Construction Waste Management and Disposal."

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

C. Removed and Reinstalled Items:

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

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

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

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Engineer, items may be removed to a suitable, protected storage location during selective demolition and reinstalled in their original locations after selective demolition operations are complete.

3.4 CLEANING

A. Remove demolition waste materials from Project Site and National Forest Service Property and dispose of them in an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction [and recycle or dispose of them according to Section 017419 "Construction Waste Management and Disposal”].

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

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

3. Comply with requirements specified in Section 017419 "Construction Waste Management and Disposal”.

B. Burning: Do not burn demolished materials.

C. 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.

END OF SECTION 024119

SECTION 070150.19 – PREPARATION FOR REROOFING

1.1 SUMMARY

A. Section Includes:

1. Full tear-off of roof system at areas indicated on Drawings.

2. Partial tear-off of roof system at areas indicated on Drawings.

3. Re-cover preparation of roof areas indicated on Drawings.

4. Removal of any flashings and counter-flashings.

1.2 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: Before starting removal work, conduct conference at each respective site (CPRS and SRDC).

1.3 INFORMATIONAL SUBMITTALS

A. Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including exterior and interior finish surfaces, that might be misconstrued as having been damaged by reroofing operations.

1. Submit before The Work begins.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Approved by warrantor of existing roofing system to work on existing roofing.

1.5 FIELD CONDITIONS

A. Existing Roof System: Existing roofs for both buildings are asphalt shingles. See Contract Documents, Statement of Work, and Attachments for additional details.

B. Owner will occupy portions of building immediately below reroofing area.

1. Conduct reroofing so Owner's operations are not disrupted.

2. Provide Owner with not less than 72 hours written notice of activities that may affect

Owner's operations.

3. Coordinate work activities daily with Owner so Owner has adequate advance notice to place protective dust and water leakage covers over sensitive equipment and furnishings; shut down HVAC, fire-alarm, or detection equipment, if needed; and evacuate occupants from below work area.

C. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and landscaping from damage or soiling from reroofing operations.

D. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.

E. Conditions existing at time of inspection for bidding will be maintained by Owner as far as practical.

F. Limit construction loads on existing roof areas to-remain and existing roof areas scheduled to be reroofed to 20 psf for loads.

G. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather conditions permit The Work to proceed without water entering existing roofing system or building.

1. Remove only as much roofing in one day as can be made watertight in the same day.

2.1 AUXILIARY REROOFING MATERIALS

A. General: Use auxiliary reroofing preparation materials recommended by roofing system manufacturer for intended use and compatible with components of existing and new roofing system.

3.1 PREPARATION

A. Seal or isolate windows that may be exposed to airborne substances created in removal of existing materials.

B. Shut off rooftop utilities and service piping before beginning The Work.

C. Test existing roof drains to verify that they are not blocked or restricted.

1. Immediately notify Engineer of any blockages or restrictions.

D. Coordinate with Owner to shut down air-intake equipment in the vicinity of The Work.

1. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork.

E. During removal operations, have sufficient and suitable materials on-site to facilitate rapid installation of temporary protection in the event of unexpected rain.

F. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday.

1. Prevent debris from entering or blocking roof drains and conductors.

a. Use roof drain plugs specifically designed for this purpose.

b. Remove roof drain plugs at end of each workday, when no work is taking place, or when rain is forecasted.

2. If roof drains are temporarily blocked or unserviceable due to roofing system removal or partial installation of new roofing system, provide alternative drainage method to remove water and eliminate ponding.

a. Do not permit water to enter-into or under existing roofing system components that are to remain.

3.2 ROOF TEAR-OFF

A. Notify Owner each day of extent of roof tear-off proposed for that day and obtain authorization to proceed.

B. Lower removed roofing materials to lower roof levels and ultimately onto ground, using dust-tight chutes or other acceptable means of removing materials from roof areas.

C. Full Roof Tear-Off: Remove existing roof shingles and other roofing system components down to the existing roof deck.

1. Remove vapor retarder.

2. Remove vent systems.

3. Remove base flashings and counter flashings.

4. Remove perimeter edge flashing and gravel stops.

5. Remove copings.

6. Remove expansion-joint covers.

7. Remove flashings at pipes, curbs, mechanical equipment, and other penetrations.

8. Remove roof drains indicated on Drawings to be removed.

9. Remove wood blocking, curbs, and nailers.

10. Remove fasteners from roof deck.

D. Partial Roof Tear-Off: Where indicated on Drawings, remove existing roof system down to existing cover board and immediately check for presence of moisture.

1. Remove wet or damp materials below existing roofing and above deck as directed by Contracting Officer’s Representative.

2. Inspect wood blocking, curbs, and nailers for deterioration and damage. If wood blocking, curbs, or nailers have deteriorated, immediately notify Engineer.

3. Remove fasteners from deck.

3.3 DECK PREPARATION

A. Inspect roof deck after tear-off of roofing system.

B. 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 Engineer.

1. Do not proceed with installation until directed by Engineer.

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

1. Do not proceed with installation until directed by Engineer.

D. Provide additional deck securement as indicated on Drawings.

E. Replace plywood/OSB/board roof sheathing as directed by Engineer.

1. Roof sheathing replacement will be paid for by adjusting the Contract Sum according to unit prices included in the Contract Documents.

3.4 ROOF RE-COVER PREPARATION

A. Remove blisters, ridges, buckles, and other substrate irregularities from existing roof that will inhibit new recover boards from conforming to substrate.

1. Remove loose aggregate from aggregate-surfaced, built-up bituminous roofing with a power broom.

2. Broom clean existing substrate.

3. Coordinate with Owner's inspector to schedule times for tests and inspections.

4. Verify that existing substrate is dry.

5. Spot check substrates with an electrical capacitance moisture-detection meter.

6. Remove materials that are wet or damp.

a. Removal will be paid for by adjusting the Contract Sum according to unit prices included in the Contract Documents.

END OF SECTION 070150.19

SECTION 073113 – ASPHALT SHINGLES

1.1 SUMMARY

A. Section Includes:

1. Glass-fiber-reinforced asphalt shingles.

2. Underlayment materials.

3. Ridge vents.

4. Metal flashing and trim.

1.2 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1.3 ACTION SUBMITTALS

A. Product Data for the following:

1. Asphalt shingles.

2. Underlayment materials.

3. Ridge caps/vents.

4. Asphalt roofing cement.

5. Elastomeric flashing sealant.

B. Shop Drawings: For metal flashing and trim.

C. Samples: For each exposed product and for each color and blend specified.

1.4 INFORMATIONAL SUBMITTALS

A. Product test reports.

B. Research reports for synthetic underlayment.

C. Sample warranty.

1.5 CLOSEOUT SUBMITTALS

A. Maintenance data.

1.6 QUALITY ASSURANCE

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

1.7 WARRANTY

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

1. Materials Warranty Period: 30 years from date of Substantial Completion, prorated, with first 10 years non-prorated.

2. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds of up to 110 mph (49 m/s) for five years from date of Substantial Completion.

3. Workmanship Warranty Period: Two years from date of Substantial Completion.

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 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 D3161/D3161M, Class F and with ASTM D7158/D7158M, Class H.

C. Energy Performance, ENERGY STAR: Provide asphalt shingles that are listed on the DOE's "ENERGY STAR Roof Product List" for steep-slope roof products.

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, available manufacturers offering products that may be incorporated into The Work include, but are not limited to, the following:

a. Owens Corning.

b. GAF.

c. CertainTeed.

2. Butt Edge: Straight cut.

3. Strip Size: Manufacturer's standard.

4. Algae Resistance: Granules resist algae discoloration.

5. Color and Blends: Brown or similar; to be selected by the COR.

B. Hip and 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. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into The Work include, but are not limited to, the following:

a. Owens Corning, ProArmor.

b. CertainTeed, Diamonddeck.

c. DuPont, Tyvek Roof Protector.

2.4 RIDGE VENTS

A. Ridge Vent/Cap: Manufacturer's standard, rigid-section, high-density, UV-stabilized plastic ridge vent, or approved other, for use under ridge shingles.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into The Work include, but are not limited to, the following:

a. Owens Corning.

b. CertainTeed.

2. Width: Manufacturers Standard.

3. Thickness: Manufacturers Standard.

2.5 ACCESSORIES

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

B. Elastomeric Flashing Sealant: ASTM C920, Type S, Grade NS, one-part, non-sag, elastomeric polymer sealant; of class and use classifications required to seal joints and remain watertight;

recommended in writing by manufacturer for installation of flashing systems.

C. 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 or extend at least 1/8 inch (3 mm) through sheathing less than 3/4 inch (19 mm) thick.

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

D. Underlayment Nails: Aluminum, stainless steel, or hot-dip galvanized-steel wire nails with low profile metal or plastic caps, 1 inch (25 mm) minimum diameter.

1. Provide with minimum 0.0134 inch (0.34 mm) thick metal cap, 0.010 inch (0.25 mm) thick power-driven metal cap, or 0.035 inch (0.89 mm) thick plastic cap; and with minimum 0.083 inch (2.11 mm) thick ring shank or 0.091 inch (2.31 mm) thick smooth shank of length to penetrate at least 3/4 inch (19 mm) into roof sheathing or to penetrate through roof sheathing less than 3/4 inch (19 mm) thick.

2.6 METAL FLASHING AND TRIM

A. Comply with requirements in Section 076200 "Sheet Metal Flashing and Trim."

1. Sheet Metal: Stainless steel, Anodized aluminum, or Aluminum, mill finished.

B. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's

"Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of the item unless otherwise indicated on Drawings.

1. Vent-Pipe Flashings: ASTM B749, Type L51121, at least 1/16 inch (1.6 mm) thick. Provide lead sleeve sized to slip over and turn down into pipe, soldered to skirt at slope of roof, and extending at least 4 inches (102 mm) from pipe onto roof.

3.1 INSTALLATION OF UNDERLAYMENT MATERIALS

A. Comply with asphalt shingle and underlayment manufacturers' written installation instructions and with recommendations in NRCA's "The NRCA Roofing Manual: Steep-Slope Roof Systems" applicable to products and applications indicated unless more stringent requirements are specified in this Section or indicated on Drawings.

B. Synthetic Underlayment:

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

a. Lap sides and ends as recommended in writing by manufacturer, but not less than 4 inches (102 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.

4. Install synthetic underlayment on roof deck not covered by self-adhering, polymer modified bitumen sheet unless otherwise specified in this Section or indicated on Drawings.

a. Lap sides of underlayment over self-adhering sheet not less than 4 inches (102 mm) in direction to shed water.

b. Lap ends of underlayment not less than 6 inches (152 mm) over self-adhering sheet.

5. Install fasteners in a grid pattern of 12 inches (305 mm) between side laps with 6 inch (152

mm) spacing at side and end laps.

6. Terminate synthetic underlayment flush against sidewalls, curbs, chimneys, and other roof projections.

C. Metal-Flashed, Open-Valley Underlayment: Install two layers of minimum 36 inch (914 mm) wide underlayment centered in valley (self-adhering and synthetic).

1. Use same underlayment as installed on field of roof.

2. Stagger end laps between layers at least 72 inches (1829 mm).

3. Lap ends of each layer at least 12 inches (305 mm) in direction that sheds water and seal with asphalt roofing cement.

4. Fasten each layer to roof deck with underlayment nails located as far from valley center as possible and only to extent necessary to hold underlayment in place until installation of valley flashing.

5. Lap roof-deck underlayment over first layer of valley underlayment at least 6 inches (152 mm).

3.2 INSTALLATION OF METAL FLASHING AND TRIM

A. Install metal flashings and trim to comply with requirements in Section 076200 "Sheet Metal

Flashing and Trim."

1. Install metal flashings in accordance with recommendations in NRCA's "NRCA Guidelines for

Asphalt Shingle Roof Systems."

2. Bed flanges of metal flashings using asphalt roofing cement or elastomeric flashing sealant.

B. Pipe Flashings: Form flashing around pipe penetrations and asphalt shingles. Fasten and seal to asphalt shingles as recommended by manufacturer.

3.3 INSTALLATION OF ASPHALT SHINGLES

A. Install asphalt shingles in accordance with manufacturer's written instructions and recommendations in NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

B. Install starter strip along lowest roof edge, consisting of an asphalt shingle strip with tabs removed at least 7 inches (178 mm) wide with self-sealing strip face up at roof edge.

1. Extend asphalt shingles 1/2 inch (19 mm) over drip edge.

C. Install first and remaining courses of laminated asphalt shingles stair-stepping diagonally across roof deck with manufacturer's recommended offset pattern at succeeding courses maintaining uniform exposure.

D. Install first and remaining courses of architectural asphalt shingles stair-stepping diagonally across roof deck with manufacturer's recommended offset pattern at succeeding courses maintaining uniform exposure.

E. Fasten asphalt shingle strips with a minimum of five 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.

F. Closed-Cut Valleys: Extend asphalt shingle strips from one side of valley 12 inches (305 mm) beyond center of valley.

1. Use one-piece shingle strips without joints in valley.

2. Fasten with extra nail in upper end of shingle. Install asphalt shingle courses from other side of valley and cut back to a straight line 2 inches (51 mm) short of valley centerline.

3. Trim upper concealed corners of cut-back shingle strips.

4. Do not nail asphalt shingles within 6 inches (152 mm) of valley center.

5. Set trimmed, concealed-corner, asphalt shingles in a 3 inch (76 mm) wide bed of asphalt roofing cement.

G. Ridge Vents: Install continuous ridge vents over asphalt shingles in accordance with manufacturer's written instructions. Fasten with roofing nails of sufficient length to penetrate sheathing. Match existing configuration of ridge vent/cap utilization.

H. 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.

2. Fasten ridge cap asphalt shingles to cover ridge vent without obstructing airflow.

END OF SECTION 073113

SECTION 077100 – ROOF SPECIALTIES

1.1 SUMMARY

A. Section Includes:

1. Copings.

2. Roof-edge specialties.

3. Roof-edge drainage systems.

4. Reglets and counterflashings.

B. Preinstallation Conference: Conduct conference at CPRS and SRDC.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Sustainable Design Submittals.

C. Shop Drawings: For roof specialties.

1. Include plans, elevations, expansion-joint locations, keyed details, and attachments to other work. Distinguish between plant and field assembled work.

D. Samples: For each type of roof specialty and for each color and texture specified.

1.3 INFORMATIONAL SUBMITTALS

A. Product Test Reports: For tests performed by a qualified testing agency.

B. Sample warranty.

1.4 CLOSEOUT SUBMITTALS

A. Maintenance Data: For roofing specialties to include in maintenance manuals.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: A qualified manufacturer offering products meeting requirements that are FM Approvals listed for specified class and SPRI ES-1 tested to specified design pressure.

1.6 WARRANTY

A. Roofing System Warranty: Roof specialties are included in warranty provisions in Section

074113.16 "Standing Seam Metal Roof Panels"

B. Special Warranty on Painted Finishes: Manufacturer agrees to repair finish or replace roof specialties that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Fluoropolymer 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.

PART 2 – PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. FM Approvals' Listing: Manufacture and install copings roof-edge specialties that are listed in FM Approvals' "RoofNav" and approved for windstorm classification, Class 1-90. Identify materials with FM Approvals' markings.

B. SPRI Wind Design Standard: Manufacture and install copings and roof-edge specialties tested according to SPRI ES-1 and capable of resisting the following design pressures:

1. Design Pressure: 30 psf.

C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, hole elongation, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Provide clips that resist rotation and avoid shear stress as-a-result-of thermal movements. Base calculations on surface temperature of materials due to both solar heat gain and nighttime sky heat loss.

1. Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.

2.2 COPINGS

A. Metal Copings: Manufactured coping system consisting of metal coping cap in section lengths not exceeding 12 feet (3.6 m), concealed anchorage; with corner units, end cap units, and concealed splice plates with finish matching coping caps.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into The Work include, but are not limited to, the following:

a. ATAS International, Inc.

b. Architectural Products Company.

c. Berridge Manufacturing Company.

d. Castle Metal Products.

e. Cheney Flashing Company.

f. Drexel Metals.

g. EXCEPTIONAL Metals.

h. Merchant & Evans Inc.

i. Metal-Era, Inc.

j. PAC-CLAD; Petersen Aluminum Corporation, a Carlisle company.

k. SAF (Southern Aluminum Finishing Company, Inc.).

2. Metallic-Coated Steel Sheet Coping Caps: Zinc-coated (galvanized) steel, nominal thickness as required to meet performance requirements.

a. Surface: Smooth, flat finish.

b. Finish: Two-coat fluoropolymer.

c. Color: To be selected by COR, Brown or similar.

3. Formed Aluminum Sheet Coping Caps: Aluminum sheet, thickness as required to meet performance requirements.

a. Surface: Smooth, flat finish.

b. Finish: Two-coat fluoropolymer.

c. Color: To be selected by COR, Brown or similar.

4. Corners: Factory mitered and mechanically clinched and sealed watertight.

5. Coping-Cap Attachment Method: Snap-on or face leg hooked to continuous cleat with back leg fastener exposed, fabricated from coping-cap material.

a. Snap-on Coping Anchor Plates: Concealed, galvanized-steel sheet, 12 inches (300 mm) wide, with integral cleats.

b. Face-Leg Cleats: Concealed, continuous galvanized-steel sheet or stainless steel.

2.4 REGLETS AND COUNTERFLASHINGS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into The Work include, but are not limited to, the following:

1. ATAS International, Inc.

2. Berridge Manufacturing Company.

3. Castle Metal Products.

4. Cheney Flashing Company.

5. Drexel Metals.

6. EXCEPTIONAL Metals.

7. Fry Reglet Corporation.

8. Heckmann Building Products, Inc.

9. Keystone Flashing Company, Inc.

10. Metal-Era, Inc.

11. OMG Roofing Products; a Division of OMG, Inc.; a subsidiary of Steel Partners Holdings L.P.

B. Reglets: Manufactured units formed to provide secure interlocking of separate reglet and counterflashing pieces, from the following exposed metal:

1. Zinc-Coated Steel: Nominal 0.022-inch (0.56-mm) thickness.

2. Formed Aluminum: Nominal 0.024 inch (0.61 mm) thickness.

3. Stainless Steel: Nominal 0.0250 inch (0.635 mm) thickness.

4. Copper: Nominal 16 oz./sq. ft. (0.55 mm).

5. Corners: Factory mitered and soldered, continuously welded, or mechanically clinched and sealed watertight.

6. Surface-Mounted Type: Provide reglets with slotted holes for fastening to substrate, with neoprene or other suitable weatherproofing washers, and with channel for sealant at top edge.

C. Counterflashings: Manufactured units of heights to overlap top edges of base flashings by 4 inches (100 mm) and in lengths not exceeding 12 feet (3.6 m) designed to snap into reglets and compress against base flashings with joints lapped, from the following exposed metal:

1. Zinc-Coated Steel: Nominal 0.022-inch (0.56-mm) thickness.

2. Formed Aluminum: Nominal 0.024 inch (0.61 mm) thickness.

3. Stainless Steel: Nominal 0.0250 inch (0.635 mm) thickness.

4. Copper: Nominal 16 oz./sq. ft. (0.55 mm) thickness.

D. Accessories:

1. Flexible-Flashing Retainer: Provide resilient plastic or rubber accessory to secure flexible flashing in reglet where clearance does not permit use of standard metal counterflashing or where reglet is provided separate from metal counterflashing.

2. Counterflashing Wind-Restraint Clips: Provide clips to be installed before counterflashing to prevent wind uplift of counterflashing lower edge.

E. Zinc-Coated Steel Finish: Two-coat fluoropolymer.

1. Color: To be selected by COR, Brown or similar.

F. Aluminum Finish: Two-coat fluoropolymer.

1. Color: To be selected by COR, Brown or similar.

2.5 MATERIALS

A. Zinc-Coated (Galvanized) Steel Sheet: ASTM A653/A653M, G90 (Z275) coating designation.

B. Aluminum Sheet: ASTM B209 (ASTM B209M), alloy as standard with manufacturer for finish required, with temper to suit forming operations and performance required.

C. Stainless Steel Sheet: ASTM A240/A240M or ASTM A666, Type 304.

D. Copper Sheet: ASTM B370, cold-rolled copper sheet, H00 or H01 temper.

2.6 UNDERLAYMENT MATERIALS

A. Self-Adhering, High-Temperature Sheet: Minimum 30 to 40 mils (0.76 to 1.0 mm) thick, consisting of slip-resisting polyethylene-film top surface laminated to layer of butyl or SBS modified asphalt adhesive, with release-paper backing; cold applied. Provide primer when recommended by underlayment manufacturer.

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2. Thermal Stability: ASTM D1970/D1970M; stable after testing at 240 deg F (116 deg C).

3. Low-Temperature Flexibility: ASTM D1970/D1970M; passes after testing at minus 20 deg F

(29 deg C).

B. Felt: ASTM D226/D226M, Type II (No. 30), asphalt-saturated organic felt, nonperforated.

C. Slip Sheet: Rosin-sized building paper, 3 lb/100 sq.ft. (0.16 kg/sq.m) minimum.

2.7 MISCELLANEOUS MATERIALS

A. Fasteners: Manufacturer's recommended fasteners, suitable for application, and designed to meet performance requirements. Furnish the following unless otherwise indicated:

1. Exposed Penetrating Fasteners: Gasketed screws with hex washer heads matching color of sheet metal.

2. Fasteners for Copper Sheet: Copper, hardware bronze, or passivated Series 300 stainless steel.

3. Fasteners for Aluminum: Aluminum or Series 300 stainless steel.

4. Fasteners for Stainless Steel Sheet: Series 300 stainless steel.

5. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Series 300 stainless steel or hot-dip zinc-coated steel according to ASTM A153/A153M or ASTM F2329.

B. Elastomeric Sealant: ASTM C920, elastomeric silicone polymer sealant of type, grade, class, and use classifications required by roofing-specialty manufacturer for each application.

C. Butyl Sealant: ASTM C1311, single-component, solvent-release butyl rubber sealant;

polyisobutylene plasticized; heavy bodied for hooked-type joints with limited movement.

D. Bituminous Coating: Cold-applied asphalt emulsion complying with ASTM D1187/D1187M.

E. Asphalt Roofing Cement: ASTM D4586, asbestos free, of consistency required for application.

2.8 FINISHES

A. Coil-Coated Galvanized-Steel Sheet Finishes:

1. High Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with ASTM A755/A755M and coating and resin manufacturers' written instructions.

a. Two-Coat Fluoropolymer: AAMA 621, Fluoropolymer finish containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in color coat.

b. Three-Coat Fluoropolymer: AAMA 621, Fluoropolymer finish containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in both color coat and clear topcoat.

c. Two-Coat Mica Fluoropolymer: AAMA 621, Fluoropolymer finish with suspended mica flakes containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in color coat.

d. Three-Coat Metallic Fluoropolymer: AAMA 621, Fluoropolymer finish with suspended metallic flakes containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in both color coat and clear topcoat.

B. Coil-Coated Aluminum Sheet Finishes:

1. High-Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.

a. Two-Coat Fluoropolymer: AAMA 2605, Fluoropolymer finish containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in color coat.

b.…

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