Att. 1 Specification-Statement of Work 250407.pdf

SECTION 011000 - SUMMARY

PART 1 - GENERAL

1.1 PROJECT INFORMATION

A. Project Identification: As follows:

1. Project: Roby Tower Site Improvements

2. Owner: USDA Forest Service, Mark Twain National Forest

3. Location: Roby Lookout Tower Site, Roby, MO (T33 N, R11W, Section 27). At Highway 17 North, Roby,MO 65552. From Houston MO; travel Northwest on State Highway 17 approximately 23 miles. Project is located on the right, at the Roby Lookout Tower site.

C. The Contractor shall furnish and install all material, furnish designs where indicated, provide all necessary equipment, tools, supervision, provide any services, provide operation and maintenance manuals as required; and any incidentals necessary to perform the work specified below. Superintendent under prime shall be on site at all times as work is done if subcontracted. Daily report with pictures to be submitted to COR at end of each day.

Siding:

Remove existing wood siding and trim and building wrap. Inspect structure walls for any damage/rot. If damage is found notify COR immediately. Install new building wrap and a new fiber-cement siding system. Color to be approved by COR from manufacturer selection.

Roofing:

Installation of all incidentals necessary to complete below stated work per the NRCA Roofing Manual and manufacturers’ installation directions shall be included in the offer price for that item.

Remove and dispose of existing asphalt shingles and felt/underlayment to decking and perform all incidental demolition work. All waste materials shall be removed from government property and disposed of by the contractor in accordance with all applicable laws and regulations. Furnish and install new underlayment materials, sheet metal flashings and trim around all roof protrusions, eave and rake drip edges around perimeter to match shingles, roof vents, ridge vent, new vent pipe collars, and shingles. Install new flashing around all roof protrusions and valleys. Remove and reinstall guttering if needed.

Once felt/underlayment is removed, pictures are REQUIRED be taken of the condition of the sheathing and eave structure around all sides of building that is visible and sent to COR for acceptance prior to any replacement of sheathing and prior to installation of new underlayment. If any decking is deteriorated, wet, blistered, or damage is found, immediately contact the COR. Color of shingles to be approved by COR.

Soffit and Fascia:

Remove and replace existing wood soffit with new aluminum soffit. Remove and replace wood fascia with aluminum covered fascia. If there is damaged wood fascia backing boards, replace with new. Color to be approved by COR.

D. The Work consists of:

Base Bid Items:

Item 01: New Warehouse Siding Replacement (ID#: 51561):

Remove existing wood siding. Replace existing siding with new fiber cement siding. Remove gutters as needed and re-install if option item to replace gutters is not selected.

Item 03: New Warehouse Roof Replacement (ID# 51561):

Approximate dimensions of the warehouse are 100 feet by 30 feet.

The roof slope is approximately 6/12.

Item 04: Old Warehouse Roof Replacement (ID# 51560):

The approximate dimensions, of the garage, are 32.5 feet by 52 feet.

The roof slope is approximately 5.5/12.

Item 05: Storage Building Roof Replacement (ID# 51711):

Approximate dimensions, of the garage, are 43 feet by 19 feet. The roof slope is approximately 6.5/12.

Item 05: Oil House Roof Replacement (ID# 51661):

The approximate dimensions, of the oil house, are 11 feet by 13 feet.

The roof slope is approximately 8/12.

Optional Bid Items:

Optional Item 1: Rotted/Damaged Roof Decking or Fascia Board Replacement:

1. It is not anticipated that any decking or fascia boards will need to be replaced;

however, any rotted/damaged decking or fascia boards requiring replacement on the buildings will be completed through contract modification at the unit price listed in the Schedule of Items for Optional Bid Item 01. Decking replacement shall be with like kind materials.

Optional Item 2: New Warehouse Gutter Replacement (ID#:51561)

1. Gutter Replacement Existing gutter and downspouts shall be removed and new 5” seamless aluminum gutters and downspouts shall be installed along with downspout extensions and gutter guards. Remove existing guttering system and downspouts. Install new seamless metal gutters and downspouts with extensions, including all necessary hangers, hardware, gutter guards, and caulking/sealant to complete installation. Gutters shall match existing style and size along front and back of building. There shall be one downspout at each corner of the building and seamless gutters that run the length of the building in front and back. Color to be approved by COR.

Optional Item 3: New Warehouse Soffit and Fascia Replacement (ID#:51561)

1. Remove existing soffit and fascia. Remove and salvage existing guttering (if option item to replace gutters is not selected), install new aluminum soffit, aluminum woodgrain fascia cover, bargeboards, and birdbox ends, including all ancillary components necessary and reinstalling salvaged guttering on the warehouse. Replace any damaged/rotted fascia backing boards. Color to be approved by COR.

Optional Item 4: New Warehouse Soffit and Fascia Exterior Painting (ID#:51561)

1. Paint fascia boards and soffit and exposed decking with 1 coat primer and 2 coats exterior grade latex semi-gloss paint. Color to be approve by COR.

NOTE 1: All building dimensions listed are approximate. Contractor is responsible for confirming actual building dimensions.

NOTE 2: All items not specifically mentioned in the Contract Documents necessary to complete the specified work shall be incidental to the cost of the project.

1.2 WORK RESTRICTIONS

A. Contractor's Use of Premises: During construction, Contractor will have limited use of site indicated. Contractor's use of premises is limited only by Owner's right to perform work or employ other contractors on portions of Project and as follows:

1. Owner will occupy premises during construction. Construction operations shall not cause undo interference with normal office operations between 8:00 AM and 4:30 PM Monday through Friday, while working on roof repair. Work is not to occur on weekends or holidays. Other than above Contractor will not be restricted as to when he can work. Work must be coordinated with the COR. Clean up work areas and return to usable condition at the end of each work period.

2. Driveways, Walkways, and Entrances: Keep driveways, parking garage, loading areas, 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 storage of materials.

B. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

1.3 SAFETY

A. Contractor shall comply with all State and Federal safety regulations during the performance of the work.

1.4 STORAGE

A. The Contractor shall be responsible for all materials and equipment stored on the project site. Locations for the Contractor’s storage areas shall be subject to approval by the COR.

1.5 CLEANUP

A. All refuse, including garbage, rubbish, construction refuse, unused materials, and wastes from the Contractor’s operations, shall be the property of the Contractor and shall be removed from Forest Service property.

B. At the end of each workday, the Contractor shall clean the construction area. All debris shall be either placed in a construction dumpster or removed from the construction site.

In addition, all pavement areas and sidewalks shall be swept clean of all debris and dust.

No construction debris shall be placed in the administrative dumpster.

C. Before leaving the Site on Fridays a more complete policing, pickup and securing of the Site shall be performed. The Site shall be left in a neat and orderly manner as determined by the COR with the public protected from construction related hazards.

1.6 WORK RESTRICTIONS

A. Contractor’s Use of Premises: During construction, Contractor shall have limited use of buildings indicated and shall not cause undo interference with normal work operations while working on roof replacements.

B. Commercial electric power is available at the site.

C. Potable water is unavailable on site.

D. Restrooms are unavailable on site.

1.7 ABBREVIATIONS AND TERMS

1. The following abbreviations and terms may be used in the contract documents:

a. COR (Contracting Officer’s Representative)

b. CO (Contracting Officer)

c. Owner: Government/Forest Service

d. USDA (United States Department of Agriculture)

1.8 CONTRACT TIME

A, 30 Calendar Days

1.9 INSPECTION AND ACCEPTANCE

A. Inspection shall be made by the COR, or his/her inspector. Inspections shall be made as often as necessary to ensure the work is being performed in a neat, workmanlike manner.

A final inspection shall be made upon completion of the job. Final acceptance shall be based upon compliance with the contract specifications.

1.10 MEASUREMENT AND PAYMENT

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. Measurement and payment for work or materials required to complete the project and which are not included as pay items on the Schedule of Items will be considered as incidental to and included in the payment for other pay items shown and separate measurement and payment therefore will not be made.

B. Payment will be made as follows:

1.11

SUBMITTAL PROCEDURE

A. Contractor is responsible to submit all items in a timely manner so as not to cause a delay in the work. Submittal approvals must be obtained prior to starting work which involves the submittal item. Contractor shall allow ten days for processing of submittals by the Forest Service.

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

2. Forest Service will not accept submittals from sources other than Contractor.

3. Identify deviations from the Contract Documents.

B. Place a permanent label or title block on each submittal for identification. Include the following information on the label:

1. Project name.

2. Date.

3. Name and address of Contractor.

4. Name and address of subcontractor or supplier.

5. Number and title of appropriate Specification Section.

PAY

ITEM DESCRIPTION UNIT EST

QUANITY

Base Bid Items BBI-1 New Warehouse Siding Replacement (ID#51561) LS 1 BBI-2 New Warehouse Roof Replacement (ID#51561) LS 1 BBI-3 Old Warehouse Roof Replacement (ID#51560) LS 1 BBI-4 Storage Building Roof Replacement (ID#51711) LS 1 BBI-5 Oil House Roof Replacement (ID#51661) LS 1

Optional Bid Items

OBI-1 Rotted/Damaged Roof Decking or Fascia Board Replacement SF Price FOR EA

SF

OBI-2 New Warehouse Gutters Replacement (ID#51561) LS 1

OBI-3 New Warehouse Soffit and Fascia Replacement

(ID#51561) LS 1

OBI-4 New Warehouse Soffit and Fascia Painting (ID#51561) LS 1

C. Submittal literature must be marked or otherwise designated to show the exact model, size, etc. the Contractor proposes to use. Information must be adequate to determine compliance with the specifications.

D. Forest Service will review each submittal, mark as appropriate to indicate approval or resubmit, and return copies less those retained. Compliance with specified requirements remains Contractor's responsibility.

E. Submittals are required per the following sections:

1. Fiber Cement Siding

a. Product Data

b. Warranty Documentations

2. Sheathing/ Fascia Boards (if needed)

a. Product Data

3. Shingles

a. Product Data

b. Color Samples

c. Warranty Documentations

4. ICC-ES Evaluation Reports

5. Underlayment

a. Product Data

6. Ridge Vent

a. Product Data

7. Roofing Nails / Underlayment Nails

a. Product Data

8. Sheet Metal Flashing and Trim, Drip Edge

a. Product Data

b. Color Samples

9. Soffit and Fascia

a. Product Data

b. Fasteners

10. Gutters, Downspouts, Hangers, Downspout

a. Product Data

b. Fasteners

11. Exterior Painting

a. Product Data

b. Color Samples

1.12 NOTICE TO PROCEED

A. Performance of the contract shall begin within ten (10) calendar days after receipt of the Notice to Proceed. The Notice to Proceed will be issued by the Contracting Officer (CO) at the pre-work conference.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 011000

SECTION 016000 - PRODUCT REQUIREMENTS

1.1 SECTION REQUIREMENTS

A. The term "product" includes the terms "material," "equipment," "system," and terms of similar intent.

B. Comparable Product Requests: Submit request for consideration of each comparable product. Identify product or fabrication or installation method to be replaced.

1. Show compliance with requirements for comparable product requests.

2. COR will review the proposed product and notify Contractor of its acceptance or rejection.

C. Basis-of-Design Product Specification Submittal: Show compliance with requirements.

D. Deliver, store, and handle products using means and methods that will prevent damage, deterioration, and loss, including theft. Comply with manufacturer's written instructions.

1. Schedule delivery to minimize long-term storage at Project site and to prevent overcrowding of construction spaces.

2. Deliver products to Project site in manufacturer's original sealed container or packaging, complete with labels and instructions for handling, storing, unpacking, protecting, and installing.

3. Inspect products on delivery to ensure compliance with the Contract Documents and to ensure that products are undamaged and properly protected.

4. Store materials in a manner that will not endanger Project structure.

5. Store products that are subject to damage by the elements, under cover in a weathertight enclosure above ground, with ventilation adequate to prevent condensation.

E. Warranties specified in other Sections shall be in addition to, and run concurrent with, other warranties required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do not relieve Contractor of obligations under requirements of the Contract Documents.

PART 2 - PRODUCTS

2.1 PRODUCT SELECTION PROCEDURES

A. Provide products that comply with the Contract Documents, are undamaged, and, unless otherwise indicated, are new at the time of installation.

1. Provide products complete with accessories, trim, finish, and other devices and components needed for a complete installation and the intended use and effect.

2. Descriptive, performance, and reference standard requirements in the Specifications establish salient characteristics of products.

B. Where Specifications include the phrase "as selected by COR from manufacturer's full range" or similar phrase, select a product that complies with requirements. COR will select color, gloss, pattern, density, or texture from manufacturer's product line that includes both standard and premium items

2.2 COMPARABLE PRODUCTS

C. COR will consider Contractor's request for comparable product when the following conditions are satisfied:

1. Evidence that the proposed product does not require revisions to the Contract Documents, that it is consistent with the Contract Documents and will produce the indicated results, and that it is compatible with other portions of the Work.

2. Detailed comparison of significant qualities of proposed product with those named in the Specifications.

3. List of similar installations for completed projects, if requested.

4. Samples, if requested.

PART 3 - EXECUTION (Not Used)

END OF SECTION 016000

SECTION 024119 - SELECTIVE DEMOLITION

1.1 SECTION REQUIREMENTS

A. Items indicated to be removed and salvaged remain Owner's property. Carefully detach from existing construction, in a manner to prevent damage, and store as directed by the CO. Include fasteners or brackets needed for reattachment elsewhere.

B. Forest Service Employees will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Forest Service Employee’s operations will not be disrupted.

C. It is not expected that hazardous materials will be encountered in the Work. If hazardous materials are encountered, do not disturb; immediately notify COR, Forest Service will be responsible for determining presence. Hazardous materials will be removed by Forest Service under a separate contract.

PART 2 - PRODUCTS

2.1 PEFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with EPA regulations and with hauling and disposal regulations of authorities having jurisdiction.

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

PART 3 - EXECUTION

3.1 DEMOLITION

A. Remove existing roofing systems, siding, soffit/fascia, gutters including, but not limited to; asphalt shingles, underlayment, flashings, drip edge, downspouts, and wood components, etc.

B. Maintain services/systems indicated to remain and protect them against damage during selective demolition operations. Before proceeding with demolition, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of the building.

C. Locate, identify, shut off, disconnect, and seal or cap off indicated utility services and mechanical/electrical systems serving areas to be selectively demolished.

D. Prevent injury to people and damage to adjacent buildings and factifies to remain.

E. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

F. Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

G. Provide temporary weather protection to prevent water leakage and damage to structure and interior areas.

H. Requirements for Building Reuse:

1. Maintain existing building structure (including structural floor and roof decking) and envelope (exterior skin and framing, excluding window assemblies and nonstructural roofing material) not indicated to be demolished; do not demolish such existing construction beyond indicated limits.

I. 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.

J. Remove demolition waste materials from Project site and legally dispose of them in an EPA-approved landfill. Do not burn demolished materials.

K. 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 061600 - SHEATHING

1.1 SECTION REQUIREMENTS

A. Submittals: product data.

PART 2 – PRODUCTS

2.1 ROOF SHEATHING

A. Roof Sheathing:

2.2 MISCELLANEOUS PRODUCTS

A. Fasteners: Size and type indicated.

1. For roof sheathing, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M or Type 304 stainless steel.

2. Power-Driven Fasteners: CABO NER-272.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Securely attach to substrates, complying with the following:

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

2. Table 2304.9.1, "Fastening Schedule," in the IBC and Table R602.3(1), "Fastener Schedule for Structural Members."

B. Fastening Methods:

1. Wall and Roof Sheathing:

a. Nail to wood framing.

b. Screw to cold-formed metal framing.

END OF SECTION 061600

SECTION 073113 - ASPHALT SHINGLES

1.1 SECTION INCLUDES

A. Asphalt shingle roofing for repair and/or replacement of existing shingles damaged during construction.

B. Flexible sheet membranes for eave protection, underlayment, and valley protection.

C. Associated metal flashings and accessories.

1.2 ACTION SUBMITTALS

A. Product Data: For the following:

1. Asphalt shingles.

2. Underlayment materials.

3. Ridge vents.

4. Asphalt roofing cement.

5. Elastomeric flashing sealant.

6. Fasteners

7. Drip Edge

8. Vent Collars.

9. Warranty Documentation: Submit manufacturer warranty and ensure that forms have been completed in Owner's name and registered with manufacturer.

B. Shop Drawings: For metal flashing and trim.

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

1.3 CLOSEOUT SUBMITTALS

A. Maintenance data.

1.4 QUALITY ASSURANCE

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

B. Products are Required to Comply with Fire Resistance Criteria: UL (DIR) listed and labeled.

1.5 WARRANTY

C. Materials Warranty: Manufacturer agrees to repair or replace asphalt shingles that fail within specified warranty period. Contractor shall register warranty and provide documents at closeout.

1. Materials Warranty Period: 50 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 for 15 years from date of Substantial Completion, prorated, with first 10 years non-prorated.

3. Algae-Resistance Warranty Period: Asphalt shingles will not discolor for 15 years from date of Substantial Completion.

4. Workmanship Warranty Period: 2 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Exterior Fire-Test Exposure: Provide asphalt shingles and related roofing materials identical to those of assemblies tested for Class A fire resistance in accordance with 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. Impact-Resistant, Laminated-Strip Asphalt Shingles: ASTM D3462/D3462M, laminated, multi-ply overlay construction; glass-fiber reinforced, mineral-granule surfaced, and self- sealing; with impact resistance complying with UL 2218, Class 4.

1. Shingles: Shingles shall be Malarkey Vista AR shingles or an approved equal. Color to be determined by the COR.

2. Hip and Ridge Shingles: Hip and Ridge shingles shall be Malarkey Ridge

Flex shingles or an approved equal. Color to match 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. Underlayment shall be Malarkey Secure Start Plus Synthetic Underlayment or an approved equal.

B. Self-Adhering, Polymer-Modified Bitumen Sheet: ASTM D1970/D1970M, minimum 45 mil thick sheet; glass-fiber-mat-reinforced, polymer-modified asphalt;

with slip-resistant top surface and release backing; cold applied

1. Underlayment shall be Malarkey Secure Start Self-Adhering Underlayment or an approved equal.

2.4 RIDGE VENTS

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

1. Ridge vent shall be Certainteed Ridge Vent or an approved equal.

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, hot-dip galvanized-steel wire shingle nails, minimum 0.120-inch diameter, sharp-pointed, with a 7/16-inch diameter flat head and of sufficient length to penetrate 3/4 inch into solid wood decking or extend at least 1/8 inch through sheathing less than 3/4 inch thick. NO

STAPLES.

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 minimum diameter.

1. Provide with minimum 0.0134-inch thick metal cap, 0.010-inch thick power-driven metal cap, or 0.035-inch thick plastic cap; and with minimum 0.083-inch thick ring shank or 0.091-inch thick smooth shank of length to penetrate at least 3/4 inch into roof sheathing or to penetrate through roof sheathing http://www.specagent.com/LookUp/?ulid=9295&mf&src=wd http://www.specagent.com/LookUp/?ulid=9295&mf&src=wd less than 3/4 inch thick.

2.6 METAL FLASHING AND TRIM

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

B. Metal Flashings: Provide sheet metal eave edge, gable edge, ridge, ridge vents, open valley flashing, chimney flashing, dormer flashing, and other flashing indicated.

C. Workmanship shall be in accordance with SMACNA standard publication specifications. All flashing shall be done in accordance with the recommended practice and standards set forth in the industry and shall be placed without use of exposed nails on face.

D. Provide continuous eaves flashing with fascia drip extending onto roof a minimum of 5". Include flashings at eave returns at building ends. Re-install gutters including straps, baskets, rain leaders with elbows and leader straps to complete the work.

Include installation of all other metal trim work indicated or necessary to complete the work in accordance with project conditions as approved by the CO.

E. Sheet metal work shall be adequate to provide water and weathertight work. Lines, arises, and angles shall be sharp and true. Plane surfaces shall be free from waves and buckles. Seams shall overlap in the direction of the flow. Joints and seams in plane surfaces shall be avoided as far as possible. Provide all profiles and dimensions indicated or inferred on the drawings to complete the flashing work.

F. Ample provision shall be made for expansion and contraction. All exposed surfaces shall be cleaned as each section of the work is completed. Care shall be exercised to prevent staining or discoloring exposed surrounding surfaces. Work so damaged shall be cleaned, repaired or replaced.

G. Except as otherwise indicated or specified, gutters, fascias, trim eaves strip and similar members shall be made from 10’-0” long sections. Indicate spacings and locations and detail proposed slip joints on shop drawings. Provide other expansion joints as required.

H. Exposed edges at all condition shall be doubled back ½" in such a manner as to conceal them and to provide stiffness. Expose no nails in face of finished work;

providing receiver strips, cleats and the like to secure fascias, trim, etc.

I. Flashings shall be installed in such a manner as will prevent galvanic action with other dissimilar adjacent metals, by priming with bituminous paint or other approved methods.

J. Install gutters along entire length of level roof edge. Pitch gutters at 1/8” per foot or as required by code to slope towards rain leaders. Install gutters and leaders with all necessary brackets, spacers and fasteners. Seal joints with sealant. Install splash block at each rain leader location.

K. 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. Lead Vent-Pipe Flashings: ASTM B749, Type L51121, at least 1/16 inch 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 from pipe onto roof.

2. Rubber Pipe Jacks: Cut to fit tightly around vent-pipe. Caulk around top of pipe jack to seal around pipe.

L. All flashing and drip edge shall be new and shall be at least as wide as flashing/drip edge removed. Flashing and Drip Edge color shall match existing, and paint shall be factory applied (when applicable).

M. Drip Edge: Formed aluminum sheet metal with at least a 2-inch roof deck flange and a 1-1/2-inch fascia flange with a 3/8-inch drip at lower edge. Color to match existing.

2.7 ROOF PENETRATIONS

A. Vents and pipe collars

1. Shall be replaced and spray painted to closely match shingles.

PART 3 - EXECUTION

3.1 PREPARATION

A. Seal roof deck joints wider than 1/16 inch as recommended by shingle manufacturer.

B. Install eave edge flashings tight with fascia boards, weather lap joints 2 inches and seal with plastic cement, and secure flange with nails spaced 8 inches on center.

3.2 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 for side laps and 6 inches for end laps.

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

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 over areas protected by self-adhering, polymer- modified bitumen sheet unless otherwise specified in this Section.

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

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

5. Install fasteners in a grid pattern of 12 inches between side laps with 6-inch spacing at side and end laps.

6. Terminate synthetic underlayment extended up not less than 4 inches against sidewalls, curbs, chimneys, and other roof projections.

C. Weather lap and seal watertight with plastic cement any items projecting through or mounted on roof.

D. Self-Adhering, Polymer-Modified Bitumen Sheet (Ice Dam): Install, wrinkle free, on roof deck in locations indicated.

1. Comply with low-temperature installation restrictions of underlayment manufacturer.

2. Install lapped in direction that sheds water.

a. Lap sides not less than 4 inches.

b. Lap ends not less than 6 inches, staggered 24 inches between succeeding courses.

c. Roll laps with roller.

3. Prime concrete, masonry, and metal surfaces to receive self-adhering sheet.

4. At Eaves: Cover eaves and extend a minimum of 24 inches inside exterior wall line.

5. At Ridges: Center on ridge line and cover deck a minimum of 18 inches on either side of ridge.

6. At Valleys: Center in valleys and cover deck a minimum of 18 inches on either side of the valley.

7. Cover underlayment within seven days.

3.3 INSTALLATION OF METAL FLASHING AND TRIM

1. Install metal flashings in accordance with manufacturers recommendations

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.

3.4 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 wide with self-sealing strip face up at roof edge.

1. Extend asphalt shingles 1/2 inch over fascia at eaves and rakes.

2. Install starter strip along rake 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. Fasten asphalt shingle strips with a minimum of six 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 hand seal self- sealing asphalt shingles by applying asphalt roofing cement spots between course overlaps after nailing the upper course.

E. Closed-Cut Valleys: Extend asphalt shingle strips from one side of valley 12 inches 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 short of valley centerline.

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

4. Do not nail asphalt shingles within 6 inches of valley center.

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

F. 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.

G. 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 074623 - ENGINEERED WOOD

PART 1 GENERAL SIDING

1.1 SECTION INCLUDES

A. Engineered wood siding.

1.2 REFERENCE STANDARDS

A. ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process;

2020.

B. ASTM C1186 - Standard Specification for Flat Fiber Cement Sheets; 2008 (Reapproved 2016).

C. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials; 2021a

1.3 SUBMITTALS

A. Product Data: Submit manufacturer's data sheets on each product to be used, including:

1. Manufacturer's requirements for related materials to be installed by others.

2. Preparation instructions and recommendations.

3. Storage and handling requirements and recommendations.

4. Installation methods, including nail patterns.

5. Provide copy of 5/15/50 Smart Side Expert Finish Warranty for review.

B. Installer's Qualification Statement.

C. Maintenance Instructions: Periodic inspection recommendations and maintenance procedures.

D. Warranty: At project closeout, submit copy of manufacturer’s warranty, made out in Owner’s name, showing that it has been registered with manufacturer.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Company specializing in performing work of the type specified in this section and certified by the siding manufacturer, with minimum five years of experience with similar projects.

1.5 MAINTENANCE

A. Furnish to the Government any unused lengths over 4'-0" plus six full boards."

PART 2 - PRODUCTS

2.1 FIBER-CEMENT SIDING

A. Lap Siding: Individual horizontal boards made of cement and cellulose fiber formed under high pressure with integral surface texture, complying with ASTM C1186, Type A, Grade II; with machined edges, for nail attachment.

1. Style: Standard lap style.

2. Texture: Wood Grain.

3. Length: 12 ft, nominal.

4. Width (Height): 6 inches.

5. Thickness: 5/16 inch, nominal.

6. Finish: Factory applied topcoat. LP SmartSide ExpertFinish Prefinished color to be selected by COR from manufacturer standard colors.

7. Warranty: 50 year limited; transferable.

8. Louisiana-Pacific Corporation: LP Smartside Trim and Siding; Or approved equal.

B. Trim: Individual or pre-formed corner trim material made of cement and cellulose fiber formed under high pressure with integral surface texture, complying with ASTM C1186, Type A, Grade II

1. Texture: Wood Grain

2. Length: 16'-0"

3. Finish: Factory applied topcoat. LP SmartSide ExpertFinish Prefinished color to be selected by CO from manufacturer standard colors

4. Warranty: 50 year

5. Louisiana-Pacific Corporation: LP Cedar Texture Trim and LP SmartSide Outside

Corners; Or approved equal.

2.2 ACCESSORIES

A. Trim: Same material and texture as siding.

B. Fasteners: Galvanized or corrosion resistant; length as required to penetrate, 1-1/4 inch, minimum.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrate, clean and repair as required to eliminate conditions that would be detrimental to proper installation.

B. Do not begin until unacceptable conditions have been corrected.

C. If substrate preparation is responsibility of another installer, notifiy CO of unsatisfactory preparation before proceeding.

3.2 PREPARATION

A. Install Sheet Metal Flashing:

1. Above door and window trim and casings.

2. Above horizontal trim in field of siding.

3.3 INSTALLATION

A. Install in accordance with manufacturer's instructions and recommendations.

1. Read warranty and comply with terms necessary to maintain warranty coverage.

2. Use trim details indicated on drawings.

3. Touch up field cut edges before installing.

4. Pre-drill nail holes if necessary to prevent breakage.

B. Joints in Horizontal Siding: Avoid joints in lap siding except at corners; where joints are inevitable stagger joints between successive courses.

C. Do not install siding less than 6 inches from surface of ground nor closer than 1 inch to roofs, patios, porches, and other surfaces where water may collect.

D. After installation, seal joints except lap joints of lap siding; seal around penetrations, and paint exposed cut edges.

3.4 INSTALLATION – HORIZONTAL LAP SIDING

A. Replace lower four lap siding panels on all house building perimeters. Sheds do not require siding replacement unless rotted.

B. Remove existing damaged and deteriorated siding without damaging neighboring siding.

C. Place new siding beneath salvaged siding boards and fasten per manufacturer’s recommendations.

D. Where visible fasteners cannot be avoided, cover with putty and paint to conceal to the maximum extent possible.

E. Maintain uniform clearance between siding and adjacent finished grade.

F. Locate splices at least one stud cavity away from window and door openings.

3.5 INSTALLATION – TRIM

A. Replace flashing around all wall openings as needed.

B. Fasten through trim into structural framing or code complying sheathing.

Fasteners must penetrate minimum 3/4 inch or full thickness of sheathing.

Additional fasteners may be required to ensure adequate security.

C. Place fasteners no closer than 1 inch from end. Fasten maximum 16 inch on center.

D. Maintain clearance between trim and adjacent finished grade.

E. Trim inside corner with single board.

F. Install single board of outside corner board then align second corner board to outside edge of first corner board. Do not fasten trim board to trim board.

G. Seal gap with high quality, paintable caulk.

3.6 PROTECTION

A. Protect installed products until Date of Substantial Completion.

B. Touch-up, repair or replace damaged products before Date of Substantial Completion.

END OF SECTION 074623

SECTION 076200 -SHEET METAL FLASHING AND TRIM

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes:

1. Manufactured Products:

a. Manufactured through-wall flashing and counterflashing.

b. Soffit

c. Fascia

d. Roof Flashing

2. Formed Products:

a. Formed wall sheet metal fabrications.

B. Application:

1. Project is for removal and replacement of roof, siding, soffit and fascia.

Existing Water Drainage Gutters and Downspouts are to be re-installed under this contract pending award of related contract for Roof and Gutter Replacement on same buildings as this Work.

2. It is expected that Selective Demolition of this project can be accomplished without damage to flashing and trim. This Section 076200 applies to materials that shall be replaced by Contractor or that are necessary to make complete watertight siding replacement project.

3. Materials damaged by Contractor shall be restored with like materials as approved by Contracting Officer.

1.2 PERFORMANCE REQUIREMENTS

A. General: Sheet metal flashing and trim assemblies as indicated shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

B. Fabricate and install copings capable of resisting forces indicated.

C. Thermal Movements: Provide sheet metal flashing and trim that allows for thermal movements from ambient and surface temperature changes.

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

1.3 SUBMITTALS

A. Product Data: For each type of product indicated. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each manufactured product and accessory.

B. Shop Drawings: Show fabrication and installation layouts of sheet metal flashing and trim, including plans, elevations, expansion-joint locations, and keyed details.

Distinguish between shop- and field-assembled work. Include the following:

1. Identification of material, thickness, weight, and finish for each item and location in Project.

2. Details for forming sheet metal flashing and trim, including profiles, shapes, seams, and dimensions.

3. Details for joining, supporting, and securing sheet metal flashing and trim, including layout of fasteners, cleats, clips, and other attachments. Include pattern of seams.

4. Details of termination points and assemblies, including fixed points.

5. Details of expansion joints and expansion-joint covers, including showing direction of expansion and contraction.

6. Details of edge conditions, including eaves, ridges, valleys, rakes, crickets, and counter flashings as applicable.

7. Details of special conditions.

8. Details of connections to adjoining work.

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

1. Sheet Metal Flashing: 12 inches long by actual width of unit, including finished seam and in required profile. Include fasteners, cleats, clips, closures, and other attachments.

2. Trim, Metal Closures, Expansion Joints, Joint Intersections, and Miscellaneous Fabrications: 12 inches long and in required profile. Include fasteners and other exposed accessories.

3. Accessories and Miscellaneous Materials: Full-size Sample.

1.4 QUALITY ASSURANCE

A. Fabricator Qualifications: Shop that 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.

B. Sheet Metal Flashing and Trim Standard: Comply with SMACNA's "Architectural Sheet Metal Manual" unless more stringent requirements are specified or shown on Drawings.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Do not store sheet metal flashing and trim materials in contact with other materials that might cause staining, denting, or other surface damage. Store sheet metal flashing and trim materials away from uncured concrete and masonry.

B. Protect strippable protective covering on sheet metal flashing and trim from exposure to sunlight and high humidity, except to the extent necessary for the period of sheet metal flashing and trim installation.

PART 2 – PRODUCTS

2.1 SHEET METALS

A. General: Protect mechanical and other finishes on exposed surfaces from damage by applying a strippable, temporary protective film before shipping.

B. Stainless-Steel Sheet: ASTM A 240/A 240M, Type 304, dead soft, fully annealed;

2D (dull, cold rolled) finish.

C. Metallic-Coated Steel Sheet: Restricted flatness steel sheet, metallic coated by the hot- dip process and pre-painted by the coil-coating process to comply with ASTM A 755/A 755M. for drip edge.

1. Zinc-Coated (Galvanized) Steel Sheet: ASTM A 653/A 653M, G90 coating designation; structural quality

2. Surface: Smooth, flat.

3. Exposed Coil-Coated Finish:

a. Two-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in both color coat and clear topcoat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.

4. Color: As indicated by manufacturer's designations or as selected by Contracting Officer Representative from manufacturer's full range.

5. Concealed Finish: Pretreat with manufacturer's standard white or light-colored acrylic or polyester backer finish, consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 mil.

D. Sheet Metal: 24 Gauge aluminum with. Mill finish for EPDM roofing

2.2 MISCELLANEOUS MATERIALS

A. General: Provide materials and types of fasteners, solder, welding rods, protective coatings, separators, sealants, and other miscellaneous items as required for complete sheet metal flashing and trim installation and recommended by manufacturer of primary sheet metal or manufactured item unless otherwise indicated.

B. Exposed Flashing Fasteners: If flashing is exposed; use self-tapping screws with a sealing washer. Color to match trim/fascia.

C. Fasteners: Wood screws, annular threaded nails, self-tapping screws, self-locking rivets and bolts, and other suitable fasteners designed to withstand design loads and recommended by manufacturer of primary sheet metal or manufactured item.

1. General: Blind fasteners or self-drilling screws, gasketed, with hex-washer head.

a. Exposed Fasteners: Heads matching color of sheet metal using plastic caps or factory-applied coating.

b. Blind Fasteners: High-strength aluminum or stainless-steel rivets suitable for metal being fastened.

c. Spikes and Ferrules: Same material as gutter; with spike with ferrule matching internal gutter width.

2. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Hot-dip galvanized steel according to ASTM A 153/A 153M or ASTM F 2329 or Series 300 stainless steel.

D. Sealant Tape: Pressure-sensitive, 100 percent solids, gray polyisobutylene compound sealant tape with release-paper backing. Provide permanently elastic, non-sag, nontoxic, non-staining tape 1/2 inch wide and 1/8 inch thick.

E. Butyl Sealant: ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type expansion joints with limited movement.

F. Bituminous Coating: Cold-applied asphalt emulsion complying with ASTM D 1187.

G. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required for application.

2.3 FABRICATION, GENERAL

A. General: Custom fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, geometry, metal thickness, and other characteristics of item indicated. Fabricate items at the shop to greatest extent possible.

1. Fabricate sheet metal flashing and trim in thickness or weight needed to comply with performance requirements, but not less than that specified for each application and metal.

2. Obtain field measurements for accurate fit before shop fabrication.

3. Form sheet metal flashing and trim without excessive oil canning, buckling, and tool marks and true to line and levels indicated, with exposed edges folded back to form hems.

4. Conceal fasteners and expansion provisions where possible. Exposed fasteners are not allowed on faces exposed to view.

B. Fabrication Tolerances: Fabricate sheet metal flashing and trim that is capable of installation to a tolerance of 1/4 inch in 20 feet on slope and location lines as indicated and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.

C. Sealed Joints: Form non-expansion but movable joints in metal to accommodate elastomeric sealant.

D. Expansion Provisions: Where lapped expansion provisions cannot be used, form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with butyl sealant concealed within joints.

E. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal.

F. Fabricate cleats and attachment devices of sizes as recommended by SMACNA's "Architect’s Sheet Metal Manual" and by FMG Loss Prevention Data Sheet 1-49 for application, but not less than thickness of metal being secured.

G. Seams: Fabricate nonmoving seams with flat-lock seams. Tin edges to be seamed, form seams, and solder.

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

PART 3 – EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, to verify actual locations, dimensions and other conditions affecting performance of the Work.

1. Verify compliance with requirements for installation tolerances of substrates.

2. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and securely anchored.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION, GENERAL

A. General: Anchor sheet metal flashing and trim and other components of the Work securely in place, with provisions for thermal and structural movement. Use fasteners, solder, welding rods, protective coatings, separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim system.

1. Install sheet metal flashing and trim true to line and levels indicated. Provide uniform, neat seams with minimum exposure of solder, welds, and sealant.

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