Attachment2_Specifications.pdf

PDF 271 KB Posted Jun 24, 2026

Attached to: LOLO NATIONAL FOREST Roof & Foundation Repair at Savenac Historic Site
Solicitation number: 1240LU26Q0100
Issued by: Department of Agriculture Forest Service

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Written by GovTribe AI · Jun 24, 2026

This document comprises technical specifications for a federal construction contract related to roof repairs at the Historic Savenac building located at Lolo National Forest. The solicitation number is 1240LU26Q00100, with work scheduled for April 2026.

The project encompasses two distinct work scopes: repairs to the administrative building roof and restoration work on the east cottage. For the administrative building, the contractor must remove damaged roofing materials, repair damaged rafters and sheathing, install new underlayment, and install Government-furnished metal shingles that match the historic character of the existing structure. For the east cottage, work includes removing and replacing a rotten sill log, repairing the concrete patio as necessary, and repairing or replacing siding while maintaining historic quality standards. The contractor is responsible for all labor, materials, equipment, and transportation, and must verify all measurements before ordering materials. A preliminary roofing conference with the Forest Service is required 10 days prior to commencing work.

The specifications detail extensive technical requirements across multiple sections: roof preparation and tear-off procedures (Section 070150.19), self-adhering sheet waterproofing installation (Section 071326), vapor retarders (Section 072600), shingles and underlayment (Section 073113), sheet metal flashing and trim (Section 076200), and roof specialties (Section 077100). Key requirements include weather-dependent work scheduling with no operations outside 7:00 a.m. to 6:30 p.m., 72-hour advance notice to the building occupant, full protection of adjacent structures and landscaping, and immediate disposal of demolished materials. The Government will furnish metal shingles; new shingles must match or closely match the color of existing shingles on the historic administrative building. Materials specified include Grace Ice & Water Shield underlayment, Owens Corning Deck Defense vapor retarder, ASTM-compliant roofing cement, and elastomeric flashing sealants. Roof sheathing replacement is limited to no more than 10 percent of overall roof area per building, with the Contracting Officer to be notified if additional damage is discovered.

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File	Type	Posted
SF_30_Amendment0001.pdf	PDF	Jul 7, 2026
1240LU26Q0100.pdf	PDF	Jun 24, 2026
Attachment1_Statement of Work.pdf	PDF	Jun 24, 2026
Attachment3_Plans.pdf	PDF	Jun 24, 2026
Attachment4_DB WageDetermination.pdf	PDF	Jun 24, 2026

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MasterSpec Short Form

PREPARATION FOR REROOFING 070150.19 - 1

Copyright © 2019 by the American Institute of Architects. Warning: This AIA MasterSpec based document is protected by U.S. Copyright Law and International Treaties. A valid, current MasterSpec license is required for editing or use of this document.

Solicitation # 1240LU26Q00100

LOLO NATIONAL FOREST

HISTORIC SAVENAC REPAIRS

APRIL 2026

SECTION 070150.19 - PREPARATION FOR REROOFING

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PREPARATION FOR REROOFING 070150.19 - 2

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

The work on the administrative building shall include repairing the damaged area shown on the plans. Work shall include but is not limited to removing all damaged material, repairing damaged rafters, repairing and replacing damaged sheathing, installing new underlayment material, and installing Government Furnishing metal shingles. All work shall match the historic character of the building.

The work on the east cottage shall include but is not limited to removing and replacing rotten sill log, removing and repairing concrete patio as necessary to complete sill log replacement, and repairing and replacing siding. Contractor is responsible for the means and methods for achieving this work. Contractor is responsible for replacing incidental material tear-off to match existing historic quality.

The precise details of performing the work are not stipulated, except as considered essential for the successful completion of the work. Furnish all labor, material, equipment, tools, transportation, and supplies necessary to complete the work according to the contract. All work shall be completed in accordance with the content of this scope of work, specifications, and attached drawings.

B. The Contractor shall be responsible for verifying all measurements to determine necessary quantities and sizes of materials to be furnished.

1.2 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: The contractor shall meet with the Forest Service 10 days prior to starting any work.

B. Contractor shall field verify all new and existing dimensions affecting the work of this contract before ordering materials.

1.3 FIELD CONDITIONS

A. Existing Roofing System: Built-up metal shingle roofing.

B. Owner will occupy entire building immediately below reroofing area.

1. Conduct reroofing so Owner's operations are not disrupted. Work shall not be performed outside of 7:00 am to 6:30 pm. Weekdays and weekends are acceptable.

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 and fire-alarm or -detection equipment if needed, and evacuate occupants from below work area.

4. Before working over structurally impaired areas of deck, notify Owner to evacuate occupants from below affected area.

PREPARATION FOR REROOFING 070150.19 - 3

a. Verify that occupants below work area have been evacuated before proceeding with work over impaired deck 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.

1. Construction Drawings for existing roofing system are provided for Contractor's convenience and information, but they are not a warranty of existing conditions. They are intended to supplement rather than serve in lieu of Contractor's own investigations. Contractor is responsible for conclusions derived from existing documents.

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

1. Unless agreed otherwise by the CO, remove only as much roofing in one day as can be made watertight in the same day.

PREPARATION FOR REROOFING 070150.19 - 4

PART 2 - PRODUCTS

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 new roofing system.

PART 3 - EXECUTION

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 Contracting Officer 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 forecast.

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.

PREPARATION FOR REROOFING 070150.19 - 5

3.2 ROOF TEAR-OFF

A. Notify Owner each day of extent of roof tear-off proposed for that day.

B. Lower removed roofing materials to ground using acceptable means of removing materials from roof areas.

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

1. Remove base flashings and counter flashings.

2. Remove perimeter edge flashing.

3. Remove expansion-joint covers.

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

5. Remove wood blocking, curbs, and nailers.

3.3 DECK PREPARATION

A. Inspect 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 Contracting Officer.

1. Do not proceed with installation until directed by Contracting Officer.

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

1. Do not proceed with installation until directed by Contracting Officer.

D. Provide additional deck securement as necessary.

E. Replace roof sheathing as directed by Contracting Officer.

1. Roof sheathing replacement will be required for a small areas not to exceed 10% of the overall roof area for each building. The CO shall be notified if further damage is encountered and additional work is required.

3.4 BASE FLASHING REMOVAL

A. Remove existing base flashings.

1. Clean substrates of contaminants, such as metal, sheet materials, dirt, and debris.

B. Do not damage metal counter flashings that are to remain.

1. Replace metal counterflashing’s damaged during removal with counterflashing’s specified in Section 077100 "Roof Specialties."

PREPARATION FOR REROOFING 070150.19 - 6

3.5 DISPOSAL

A. Collect demolished materials and place in containers.

1. Promptly dispose of demolished materials.

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

3. Storage or sale of demolished items or materials on-site is not permitted.

B. Transport and legally dispose of demolished materials off Owner's property.

END OF SECTION 070150.19

SELF-ADHERING SHEET WATERPROOFING 071326 - 1

SECTION 071326 - SELF-ADHERING SHEET WATERPROOFING

1.1 SUMMARY

A. Section Includes:

1. Synthetic Vapor Barrier Waterproofing.

1.2

PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1.3

ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Samples: For each exposed product and for each color and texture specified.

1.4

INFORMATIONAL SUBMITTALS

A. Sample warranties.

1.5

QUALITY ASSURANCE

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

1.6

WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to furnish replacement waterproofing material for waterproofing that does not comply with requirements or that fails to remain watertight within specified warranty period.

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

SELF-ADHERING SHEET WATERPROOFING 071326 - 2

2.1 SELF-ADHERING SHEET WATERPROOFING

A. Ice & Water Shield: Grace flexible self-sealing ice & water barrier, or COR approved product of equal quality and performance.

1. Basis of Design: Grace Ice & Water Shield “Rubber Roof Underlayment”.

2.2 AUXILIARY MATERIALS

A. Furnish auxiliary materials recommended by waterproofing manufacturer for intended use and compatible with sheet waterproofing.

1. Furnish liquid-type auxiliary materials that comply with VOC limits of authorities having jurisdiction.

B. Install Sheeting and Auxiliary Materials according to manufacturer’s instructions and recommendations.

3.1 PREPARATION

A. Clean, prepare, and treat substrates according to manufacturer's written instructions. Provide clean, dust-free, and dry substrates for waterproofing application.

B. Mask off adjoining surfaces not receiving waterproofing to prevent spillage and overspray affecting other construction.

3.2 INSTALLATION OF SYNTHETIC SHEET-WATERPROOFING

A. Install synthetic waterproofing sheets according to waterproofing manufacturer's written instructions.

B. Apply and firmly adhere sheets over area to receive waterproofing. Accurately align sheets and maintain uniform 2-1/2-inch- (64-mm-) minimum lap widths and end laps. Overlap and seal seams, and stagger end laps to ensure watertight installation.

1. When ambient and substrate temperatures range between 25 and 40 deg F (minus 4 and plus 5 deg C), install self-adhering, synthetic sheets produced for low-temperature application. Do not use low-temperature sheets if ambient or substrate temperature is higher than 60 deg F (16 deg C).

C. Apply continuous sheets over already-installed sheet strips, bridging substrate cracks, construction, and contraction joints.

SELF-ADHERING SHEET WATERPROOFING 071326 - 3

D. Seal edges of sheet-waterproofing terminations with mastic.

E. Install sheet-waterproofing and auxiliary materials to tie into adjacent waterproofing.

F. Repair tears, voids, and lapped seams in waterproofing not complying with requirements. Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending 6 inches (150 mm) beyond repaired areas in all directions.

G. Immediately install protection course with butted joints over waterproofing membrane.

3.3 PROTECTION, REPAIR, AND CLEANING

A. Do not permit foot or vehicular traffic on unprotected membrane.

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

C. Correct deficiencies in or remove waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings.

D. Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended in writing by manufacturer of affected construction.

END OF SECTION 071326

VAPOR RETARDERS 072600 - 1

SECTION 072600 - VAPOR RETARDERS

1.1 SUMMARY

A. Section Includes:

1. Reinforced-polyolefin vapor retarders.

A. Product test reports.

2.1 REINFORCED-POLYOLEFIN VAPOR RETARDER

A. Reinforced-Polyolefin Vapor Retarders: Owens Corning “Deck Defense” high performance roof underlayment, or COR approved product of equal quality and performance.

1. Basis of design: Owens Corning “Deck Defense”.

2. Physical Properties:

a. Applicable Standards and Codes: ASTM D226 and ASTM D4869

b. Fire Resistance – ASTM E108.

3.1 INSTALLATION OF VAPOR RETARDERS ON FRAMING

A. Extend vapor retarders to extremities of areas to protect from vapor transmission. Secure vapor retarders in place with adhesives, vapor retarder fasteners, or other anchorage system as recommended by manufacturer. Extend vapor retarders to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation.

B. Seal vertical joints in vapor retarders over framing by lapping no fewer than two studs and sealing with vapor-retarder tape according to vapor-retarder manufacturer's written instructions. Locate all joints over framing members or other solid substrates.

VAPOR RETARDERS 072600 - 2

C. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarders.

D. Repair tears or punctures in vapor retarders immediately before concealment by other work.

Cover with vapor-retarder tape or another layer of vapor retarders.

END OF SECTION 072600

SHINGLES 073113 - 1

SECTION 073113 - SHINGLES PART 1 -

GENERAL

1.1 SUMMARY

A. Section Includes:

1. Government Furnished Metal Shingles. All New shingles shall match or closely match color of shingles on Historic Administrative Building.

2. Underlayment materials.

3. Metal flashing and trim and roof cap.

A. Preinstallation Conference: Conduct Preinstallation conference at project location.

A. Product Data: For the following:

1. Metal shingles. (Government Provided)

2. Underlayment materials.

3. Asphalt roofing cement.

4. Elastomeric flashing sealant.

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

A. Product test reports.

B. Research reports for synthetic underlayment.

C. Sample warranty.

CLOSEOUT SUBMITTALS

A. Maintenance data.

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

SHINGLES 073113 - 2

1.7 WARRANTY

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

1. Materials Warranty Period: 40 year commercial warranty from date of Substantial Completion, prorated, with first five years non-prorated.

2. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds of up to 130 mph (58 m/s) for 15 years from date of Substantial Completion.

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

2.1 PERFORMANCE REQUIREMENTS

A. Wind Resistance: Provide asphalt shingles that comply with requirements of ASTM D3161/D3161M, Class F.

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. Basis of Design: Grace Ice & Water Shield “Rubber Roof Underlayment”.

2. Algae Resistance: Granules resist algae discoloration.

3. Color and Blends: Similar to existing.

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

2.3

UNDERLAYMENT MATERIALS

A. Basis of Design: Grace Ice & Water Shield “Rubber Roof Underlayment”.

2.4

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.

SHINGLES 073113 - 3

2.5 METAL FLASHING AND TRIM

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

1. Sheet Metal: Milled aluminum.

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: Match existing.

3.1 INSTALLATION OF UNDERLAYMENT MATERIALS

A. Comply with metal 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 3 inches (51 mm) for side laps and 4 inches (152 mm) for end laps.

b. Stagger end laps between succeeding courses at interval recommended in writing by manufacturers.

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

SHINGLES 073113 - 4

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 over areas protected 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 extended up not less than 4 inches (102 mm) against sidewalls, curbs, chimneys, and other roof projections.

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 Shingle Roof Systems."

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

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

END OF SECTION 073113

SHEET METAL FLASHING AND TRIM 076200 - 1

SECTION 076200 - SHEET METAL FLASHING AND TRIM

1.1 SUMMARY

A. Section Includes:

1. Manufactured reglets with counterflashing.

2. Formed low-slope roof sheet metal fabrications.

3. Formed steep-slope roof sheet metal fabrications.

A. Preinstallation Conference: Conduct conference at Project site.

A. Product Data: For each of the following

1. Underlayment materials.

2. Elastomeric sealant.

3. Butyl sealant.

4. Epoxy seam sealer.

B. Samples: For each exposed product and for each color and texture specified, 12 inches (300

mm) long by actual width.

A. Product Certificates: For each type of roof edge flashing that is ANSI/SPRI/FM 4435/ES-1 tested and FM Approvals approved.

B. Evaluation Reports: For roof edge flashing, from an agency acceptable to authority having jurisdiction showing compliance with ANSI/SPRI/FM 4435/ES-1.

C. Sample warranty.

A. Maintenance data.

B. Special warranty.

SHEET METAL FLASHING AND TRIM 076200 - 2

1.6 QUALITY ASSURANCE

A. Fabricator Qualifications: Employs skilled workers who custom fabricate sheet metal flashing and trim similar to that required for this Project and whose products have a record of successful in-service performance.

1. For roof edge flashings that are ANSI/SPRI/FM 4435/ES-1 tested, shop shall be listed as able to fabricate required details as tested and approved.

SHEET METAL FLASHING AND TRIM 076200 - 3

1.1 STEEP-SLOPE ROOF SHEET METAL FABRICATIONS

A. Apron, Step, Cricket, and Backer Flashing: Fabricate from the following materials:

1. Aluminum: 0.032 inch (0.81 mm) thick.

2. Stainless Steel: 0.0156 inch (0.396 mm) thick.

3. Aluminum-Zinc Alloy-Coated Steel: 0.022 inch (0.56 mm) thick.

B. Valley Flashing: Fabricate from the following materials:

1. Aluminum: 0.032 inch (0.81 mm) thick.

2. Stainless Steel: 0.0188 inch (0.477 mm) thick.

3. Aluminum-Zinc Alloy-Coated Steel: 0.028 inch (0.71 mm) thick.

C. Drip Edges: Fabricate from the following materials:

1. Aluminum: 0.032 inch (0.81 mm) thick.

2. Stainless Steel: 0.0156 inch (0.396 mm) thick.

3. Aluminum-Zinc Alloy-Coated Steel: 0.022 inch (0.56 mm) thick.

D. Eave, Rake, Ridge, and Hip Flashing: Fabricate from the following materials:

1. Aluminum: 0.032 inch (0.81 mm) thick.

2. Stainless Steel: 0.0156 inch (0.396 mm) thick.

3. Aluminum-Zinc Alloy-Coated Steel: 0.022 inch (0.56 mm) thick.

3.1 INSTALLATION OF UNDERLAYMENT

A. Synthetic Underlayment: Install synthetic underlayment, wrinkle free, in accordance with manufacturers' written instructions, and using adhesive where possible to minimize use of mechanical fasteners under sheet metal.

B. Self-Adhering, High-Temperature Sheet Underlayment:

1. Install self-adhering, high-temperature sheet underlayment; wrinkle free.

SHEET METAL FLASHING AND TRIM 076200 - 4

2. Prime substrate if recommended by underlayment manufacturer.

3. Comply with temperature restrictions of underlayment manufacturer for installation; use primer for installing underlayment at low temperatures.

4. Apply in shingle fashion to shed water, with end laps of not less than 6 inches (150 mm) staggered 24 inches (600 mm) between courses.

5. Overlap side edges not less than 3-1/2 inches (90 mm). Roll laps and edges with roller.

6. Roll laps and edges with roller.

7. Cover underlayment within 14 days.

3.2 INSTALLATION, GENERAL

A. Install sheet metal flashing and trim to comply with details indicated and recommendations of cited sheet metal standard that apply to installation characteristics required unless otherwise indicated on Drawings.

1. Install fasteners, protective coatings, separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim system.

2. Install sheet metal flashing and trim true to line, levels, and slopes. Provide uniform, neat seams with minimum exposure of sealant.

3. Anchor sheet metal flashing and trim and other components of the Work securely in place, with provisions for thermal and structural movement.

4. Install sheet metal flashing and trim to fit substrates and to result in watertight performance.

5. Install continuous cleats with fasteners spaced not more than 12 inches (300 mm) o.c.

6. Space individual cleats not more than 12 inches (300 mm) apart. Attach each cleat with at least two fasteners. Bend tabs over fasteners.

7. Install exposed sheet metal flashing and trim with limited oil-canning, and free of buckling and tool marks.

8. Do not field cut sheet metal flashing and trim by torch.

B. Metal Protection: Where dissimilar metals contact each other, or where metal contacts pressure-treated wood or other corrosive substrates, protect against galvanic action or corrosion by painting contact surfaces with bituminous coating or by other permanent separation as recommended by sheet metal manufacturer or cited sheet metal standard.

1. Coat concealed side of uncoated-aluminum and stainless steel sheet metal flashing and trim with bituminous coating where flashing and trim contact wood, ferrous metal, or cementitious construction.

2. Underlayment: Where installing sheet metal flashing and trim directly on cementitious or wood substrates, install underlayment and cover with slip sheet.

C. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim.

1. Space movement joints at maximum of 10 feet (3 m) with no joints within 24 inches (600

mm) of corner or intersection.

2. Form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm) deep, filled with sealant concealed within joints.

D. Fasteners: Use fastener sizes that penetrate substrate not less than recommended by fastener manufacturer to achieve maximum pull-out resistance.

SHEET METAL FLASHING AND TRIM 076200 - 5

E. Conceal fasteners and expansion provisions where possible in exposed work and locate to minimize possibility of leakage. Cover and seal fasteners and anchors as required for a tight installation.

F. Seal joints as required for watertight construction.

1. Use sealant-filled joints unless otherwise indicated.

a. Embed hooked flanges of joint members not less than 1 inch (25 mm) into sealant.

b. Form joints to completely conceal sealant.

c. When ambient temperature at time of installation is between 40 and 70 deg F (4 and 21 deg C), set joint members for 50 percent movement each way.

d. Adjust setting proportionately for installation at higher ambient temperatures.

1) Do not install sealant-type joints at temperatures below 40 deg F (4 deg C).

G. Rivets: Rivet joints in uncoated aluminum where necessary for strength.

3.3 CLEANING

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

B. Clean and neutralize flux materials. Clean off excess solder.

SHEET METAL FLASHING AND TRIM 076200 - 6

C. Clean off excess sealants.

3.4 PROTECTION

A. Remove temporary protective coverings and strippable films as sheet metal flashing and trim are installed unless otherwise indicated in manufacturer's written installation instructions.

B. Replace sheet metal flashing and trim that have been damaged or that have deteriorated beyond successful repair by finish touchup or similar minor repair procedures, as determined by Contracting Officer.

END OF SECTION 076200

ROOF SPECIALTIES 077100 - 1

SECTION 077100 - ROOF SPECIALTIES

1.1 SUMMARY

A. Section Includes:

1. Roof-edge specialties.

2. Reglets and counterflashings.

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

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

B. Sample warranty.

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

A. Manufacturer Qualifications: A qualified manufacturer offering products meeting requirements that are FM Approval listed for specified class.

WARRANTY

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

073113 "Asphalt Shingles"

ROOF SPECIALTIES 077100 - 2

2.1 PERFORMANCE REQUIREMENTS

A. FM Approvals' Listing: Manufacture and install 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. 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 temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

2.2 ROOF-EDGE SPECIALTIES

A. Roof-Edge Fascia: Manufactured, two-piece, roof-edge fascia consisting of snap-on metal fascia cover in section lengths not exceeding 12 feet (3.6 m) and a continuous metal receiver with integral drip-edge cleat to engage fascia cover and secure roof membrane. Provide matching corner units.

1. Metallic-Coated Steel Sheet Fascia Covers: Zinc-coated (galvanized) steel, nominal thickness as required to meet performance requirements.

a. Surface: Smooth, flat finish.

b. Finish: Match existing finish.

c. Color: Match existing color.

2. Formed Aluminum Sheet Fascia Covers: Aluminum sheet, thickness as required to meet performance requirements.

a. Surface: Smooth, flat finish.

b. Finish: Match existing finish.

c. Color: Match existing color.

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

4. Splice Plates: Concealed, of same material, finish, and shape as fascia cover.

5. Receiver: Manufacturer's standard material and thickness.

2.3 REGLETS AND COUNTERFLASHINGS

A. 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: 0.024 inch (0.61 mm) thick.

3. Stainless Steel: 0.0188 inch (0.477 mm) thick.

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

ROOF SPECIALTIES 077100 - 3

5. 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.

B. 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 or through-wall-flashing receiver 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: 0.024 inch (0.61 mm) thick.

3. Stainless Steel: 0.0188 inch (0.477 mm) thick.

C. 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.

2.4 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.

2.5 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 polyurethane or silicone polymer sealant of type, grade, class, and use classifications required by roofing-specialty manufacturer for each application.

ROOF SPECIALTIES 077100 - 4

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.

3.1 INSTALLATION, GENERAL

A. Install roof specialties according to manufacturer's written instructions. Anchor roof specialties securely in place, with provisions for thermal and structural movement. Use fasteners, solder, protective coatings, separators, underlayment’s, sealants, and other miscellaneous items as required to complete roof-specialty systems.

1. Install roof specialties level, plumb, true to line and elevation; with limited oil-canning and without warping, jogs in alignment, buckling, or tool marks.

2. Provide uniform, neat seams with minimum exposure of solder and sealant.

3. Install roof specialties to fit substrates and to result in weathertight performance. Verify shapes and dimensions of surfaces to be covered before manufacture.

4. Torch cutting of roof specialties is not permitted.

5. Do not use graphite pencils to mark metal surfaces.

B. Metal Protection: Protect metals against galvanic action by separating dissimilar metals from contact with each other or with corrosive substrates by painting contact surfaces with bituminous coating or by other permanent separation as recommended by manufacturer.

1. Coat concealed side of uncoated aluminum and stainless steel roof specialties with bituminous coating where in contact with wood, ferrous metal, or cementitious construction.

2. Bed flanges in thick coat of roofing cement where required by manufacturers of roof specialties for waterproof performance.

C. Expansion Provisions: Allow for thermal expansion of exposed roof specialties.

1. Space movement joints at a maximum of 12 feet (3.6 m) with no joints within 18 inches (450 mm) of corners or intersections unless otherwise indicated on Drawings.

2. When ambient temperature at time of installation is between 40 and 70 deg F (4 and 21 deg C), set joint members for 50 percent movement each way. Adjust setting proportionately for installation at higher ambient temperatures.

D. Fastener Sizes: Use fasteners of sizes that penetrate substrate not less than recommended by fastener manufacturer to achieve maximum pull-out resistance.

E. Seal concealed joints with butyl sealant as required by roofing-specialty manufacturer.

F. Seal joints as required for weathertight construction. Place sealant to be completely concealed in joint. Do not install sealants at temperatures below 40 deg F (4 deg C).

ROOF SPECIALTIES 077100 - 5

3.2 INSTALLATION OF ROOF-EDGE SPECIALITIES

A. Install cleats, cants, and other anchoring and attachment accessories and devices with concealed fasteners.

B. Anchor roof edgings with manufacturer's required devices, fasteners, and fastener spacing to meet performance requirements.

3.3 INSTALLATION OF REGLETS AND COUNTERFLASHINGS

A. Surface-Mounted Reglets: Install reglets to receive flashings where flashing without embedded reglets is indicated on Drawings. Install at height so that inserted counterflashings overlap 4 inches (100 mm) over top edge of base flashings.

B. Counterflashings: Insert counterflashings into reglets or other indicated receivers; ensure that counterflashings overlap 4 inches (100 mm) over top edge of base flashings. Lap counterflashing joints a minimum of 4 inches (100 mm) and bed with butyl sealant. Fit counterflashings tightly to base flashings.

3.4 CLEANING AND PROTECTION

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

B. Clean and neutralize flux materials. Clean off excess solder and sealants.

C. Remove temporary protective coverings and strippable films as roof specialties are installed.

END OF SECTION 077100

SECTION 070150.19 - PREPARATION FOR REROOFING PART 1 - GENERAL

1.2 PREINSTALLATION MEETINGS

1.3 FIELD CONDITIONS

PART 2 - PRODUCTS

PART 3 - EXECUTION

3.2 ROOF TEAR-OFF

3.3 DECK PREPARATION

3.4 BASE FLASHING REMOVAL

3.5 DISPOSAL

2.2 AUXILIARY MATERIALS

PART 3 - EXECUTION

3.2 INSTALLATION OF SYNTHETIC SHEET-WATERPROOFING

3.3 PROTECTION, REPAIR, AND CLEANING

PART 3 - EXECUTION

PART 2 - PRODUCTS

2.5 METAL FLASHING AND TRIM

PART 3 - EXECUTION

3.2 INSTALLATION OF METAL FLASHING AND TRIM

1.1 STEEP-SLOPE ROOF SHEET METAL FABRICATIONS

PART 3 - EXECUTION

3.2 INSTALLATION, GENERAL

3.3 CLEANING

3.4 PROTECTION

2.2 ROOF-EDGE SPECIALTIES

2.3 REGLETS AND COUNTERFLASHINGS

2.4 MATERIALS

2.5 MISCELLANEOUS MATERIALS

PART 3 - EXECUTION

3.2 INSTALLATION OF ROOF-EDGE SPECIALITIES

3.3 INSTALLATION OF REGLETS AND COUNTERFLASHINGS

3.4 CLEANING AND PROTECTION

File details come from the government source that posted it. Updated Jun 24, 2026.