1240BH24Q0032 Attachments.pdf

USDA FOREST SERVICE PROJECT SPECIFICATIONS

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 1/1 Specification List

SPECIFICATION LIST

WRRD Bldg. 2012 ROOF REPLACEMENT Wild Rivers Ranger District

Rogue River – Siskiyou National Forest Josephine County, Oregon

CONSTRUCTION SPECIFICATION INSTITUTE (CSI) SPECIFICATIONS

SECTION TITLE

DIVISION 01 – GENERAL REQUIREMENTS

01020 Intent of Contract 01025 Measurement and Payment 01200 Mobilization

DIVISION 06 – WOOD AND PLASTICS

06100 Roof Sheathing

DIVISION 07 – THERMAL AND MOISTURE PROTECTION

07412 Metal Roof Replacement 07710 Roof Edge Drainage Systems

Rev. Date 02//23 2023 WRRD Bldg. 1016 Roof Replacement 01020 - 1/1 Intent of Contract

SECTION 01020

INTENT OF CONTRACT

1. PART 1 - GENERAL

1.01 SUMMARY

A. The intent of the contract is to provide for the complete construction of a fully functional project as described in the contract documents and Drawings. Unless otherwise provided, the Contractor shall furnish all labor, materials, equipment, tools, transportation, and supplies, and shall perform all work required to complete the project within reasonably close conformity to the Drawings and Specifications, and in accordance with provisions of the contract.

2. PART 2 – PRODUCTS (NOT USED)

3. PART 3 – EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

END OF SECTION

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 01025 - 1/2 Measurement and Payment

SECTION 01025

MEASUREMENT AND PAYMENT

1. PART 1 - GENERAL

1.01 SUMMARY

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

C. Not all units and measurement methods may be used under this Contract.

1.02 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For individual construction items, longitudinal and lateral measurements for area computation shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting, and erosion control blankets shall be along slope lines.

2. For structures they shall be measured according to neat lines shown on the Drawings or as altered by the CO, in writing, to fit field conditions.

3. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurement shall be made parallel to the base of foundation upon which the structures are placed.

4. For standard manufactured items (such as fence, wire, plates, rolled shapes, pipe conduits) identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions.

Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

1.03 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. Square (SQ): 100 square feet unit, measured on the surface of roof plane.

2. Lump Sum (LS): One complete unit, not directly measured. The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item.

3. Square Foot (SF): Measured on a plane parallel to the surface being measured.

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 01025 - 2/2 Measurement and Payment

1.04 METHOD OF MEASUREMENT

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. DESIGNED QUANTITIES (DQ) - These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

a. As a result of changes in the work authorized by the CO.

b. As a result of the CO determining that errors exist in the original design that causes a pay item quantity to change by 15 percent or more.

c. As a result of the Contractor submitting to the CO a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

3. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

2. PART 2 – PRODUCTS (NOT USED)

3. PART 3 – EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 01200 - 1/1 Mobilization

SECTION 01200

MOBILIZATION

1. PART 1 - GENERAL

1.01 SUMMARY

A. This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

2. PART 2 - PRODUCTS (NOT USED)

3. PART 3 - EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT

4.01 PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS:

A. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

B. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

C. Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

D. The total of all payments shall not exceed the original contract amount for this item.

4.02 BASIS OF PAYMENT

A. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01200-1 Mobilization Lump Sum

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 06100 - 1/2 Roof Sheathing

SECTION 06100

ROOF SHEATHING

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section specifies replacement of deteriorated lumber on roof prior to placement of new roofing materials.

1.02 RELATED SECTIONS

A. 07412 Metal Roof Replacement

1.03 QUALITY ASSURANCE

A. Furnish materials complying with the following:

1. Softwood Lumber

a. Graded in accordance with the latest edition of "Standard Grading Rules

No. 17,” WCLIB, or "Western Grading Rules," WWPA. Lumber grades specified below are taken from “Standard Grading Rules, No.

17." Equal grades from "Western Grading Rules" are acceptable.

Furnish lumber bearing a recognized grading bureau mark or a "Certificate of Grade" may be substituted. Where a grade for Douglas Fir (DF) species is indicated, other species, if approved by the CO, may be supplied on an equal stress grade basis.

2. All materials and construction techniques shall meet applicable Local codes or the requirements herein, whichever is stricter.

2. PART 2 - PRODUCTS

2.01 MATERIALS

A. Lumber Roof.

1. Furnish DF S4S lumber, sized to match existing roofs. Furnish with a moisture content of 19 percent or less. Existing sheathing is a solid material between ¾” to 1” thick. Contractor to verify.

B. Nails

1. Provide H.D.G. nails sized in accordance with the Oregon Structural Specialty

Code table 2304.9.1

3. PART 3 - EXECUTION

3.01 CONSTRUCTION

A. Roof Sheathing Replacement

1. Upon removal of existing roofing materials, notify CO of any deteriorated lumber roof sheathing.

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 06100 - 2/2 Roof Sheathing

2. Existing deteriorated roof sheathing shall be removed and replaced as directed by CO.

3. Apply replacement lumber roof sheathing with the face grain at right angles to support, over a minimum of 2 spans. Stagger end joints.

4. PART 4 - MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASURMENT:

A. Roof Sheathing Replacement

1. Actual quantities, measurement will be made per square foot of sheathing replaced, where skip sheathing is present; payment will only be made for the surface area of the sheathing. Payment will not be made for gaps adjacent to sheathing replaced.

4.02 BASIS OF PAYMENT

06100-1 Roof Sheathing Replacement Square Foot

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 1/6 Metal Roof Replacement

SECTION 07412

METAL ROOF REPLACEMENT

1. PART 1 - GENERAL

1.1 SUMMARY

A. This section specifies work related to removing and disposing of existing cedar shake roofing materials, and the furnishing and installing of new preformed metal roof complete with vented ridge, flashing and trim.

1.2 RELATED SECTIONS

A. 06100 Roof Sheathing

1.3 SUBMITTALS

A. Manufacturer's catalog cuts and installation recommendations.

B. Samples: Furnish color samples from manufacturer’s full range of colors for approval.

C. Warranties- Roofing manufacturer’s warranty D. Warranties- Contractor’s two year warranty

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver, handle, and store preformed panels and other manufactured items in such a way that they will not be damaged, deformed, or stained.

B. Comply with manufacturer's recommendations for protection.

1.5 WARRANTY

A. The Contractor shall warrant for two years from substantial completion that the standing seam roofing is free from defective workmanship. While roofing is under warranty, repairs shall be performed at the Contractor’s expense.

B. Furnish roof manufacturer’s standard written warranty, and cleaning & maintenance guide.

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 2/6

1.6 EXISTING PHOTOS

NORTH ELEVATION

SOUTH ELEVATION

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 3/6

EAST ELEVATION

WEST ELEVATION

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 4/6

2. PART 2 - PRODUCTS

2.1 ROOFING MATERIALS

A. Metal roofing

1. “Design Span HP” standing seam metal roof with vertical ribs at 12” on center as manufactured by ASC Building Products, or approved equal.

2. Panels shall be 24 gauge.

3. Panels shall be full length from ridge to eave or other intersection. Fasteners shall be concealed except where needed for trim and flashings.

4. Finish: Standard PVDF finish, “Dura Tech 5000”, or approved equal.

B. Accessories

1. Provide all necessary eave flashing, ridge cap, valley flashing, closures, vent flashing, gable trim, transition flashing, sill flashing, head flashing, and other components in accordance with the manufacturer’s standard details and installation instructions. Accessories shall be of the same material, finish, and manufacturer as used for the panels and shall work as a system to provide a weather tight seal.

C. Fasteners

1. Panel clips per manufacturer to match roof panel

2. Concealed: No. 12 x 1” pancake head, zinc coated

3. Exposed: Painted hex head with neoprene washer, No 12

D. Underlayment

1. When applying metal roofing onto solid sheathing - ASTM D226, Type II, 30 pounds/square or equivalent synthetic underlayment.

E. Roof pipe jacks

1. 26 gauge galvanized metal with rubber boot sized to fit pipe or conduit, color to match roofing materials.

3. PART 3 – EXECUTION

3.1 REMOVAL OF EXISTING ROOFING MATERIALS

A. Remove and dispose of all existing roof materials down to sheathing, including all trim, flashing, fasteners, felt, etc. All removed roofing materials shall become the property of the contractor and shall be removed from National Forest Land, in accordance with applicable federal, state, and local regulations.

3.2 DAMAGED ROOF SHEATHING

A. Install new sheathing in accordance with section 06100.

3.3 PREPARATION

A. Substrate to receive roofing shall be plumb and true, clean, even, smooth, as dry as possible and free from defects and projections, which might affect the installation.

Contractor must obtain written approval from CO for installed roof sheathing prior to installation of roofing materials.

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 5/6

3.4 UNDERLAYMENT

A. Install felt horizontal to eaves with minimum 2” overlap of each row. Provide ice dam protection for first 36” layer.

3.5 ROOF PANELS

A. Apply panel with the standing seam parallel to the slope of the roof. Provide panels in full lengths, with no transverse joints except at the junction or ventilators, curbs, translucent panels, and similar openings. Install flashing to assure positive water drainage away from penetrations. Flash and seal at the ridge, eaves, rakes, and adjoining vertical wall surfaces.

B. Closing off ridge line: All roofing panels terminating under a flashing: i.e.: ridge, clearstory, endwall, shall have the last 1” of the pan area bent up at a 90 degree angle.

This shall be accomplished by making a 1” cut in the pan as close to the vertical seam as possible. Then using the factory supplied endbender or equal, bend the entire 1”x12 pan area upward. Flexo seal or equal shall be used to seal both cut areas, causing a watertight pan.

C. Provide minimum 1” fasteners: 2 at eave and 16” on center after that. Use 9/16” pan-head screws in overhangs at eaves; assure no penetration through eave sheathing.

3.6 FLASHING

A. All flashing and related accessories in connection with the preformed metal panels shall be provided as indicated and as necessary to provide a weather-tight installation.

B. Provide inverted “vee” type cricket flashing on all roof penetrations greater than 3 feet from roof ridgeline subject to damage from sliding snow loads.

C. Fastener spacing shall be in accordance with the panel manufacturer’s recommendations and as necessary to withstand the design loads indicated. Drive exposed penetrating type washers properly and drive so as not to damage factory applied coating. Exercise extreme care in drilling pilot holes for fastenings to keep drills perpendicular and centered. After drilling, remove metal filings and burrs from holes prior to installing fasteners. Fasteners shall not exceed that recommended by the manufacturer. Remove panels deformed or otherwise damaged by over-torqued fastenings, and provide new panels.

3.7 CLEANING AND TOUCH UP

A. Clean all exposed sheet metal work at completion of installation. Remove metal shavings, filings, nails, bolts, and wires from roofs on completion to prevent discoloration and harm to the panels and flashings. Remove grease and oil film, excess sealant handling marks, contamination from steel wool, fittings and drilling debris and scrub the work clean. All exposed metal surfaces shall be free of dents, creases, scratch marks.

B. Use magnetic pick-up tool to clean minimum area to 10 foot from around building.

C. Touch-up all scraped or scratched areas with manufacturer’s supplied paint. Apply paint only to scraped or scratched areas of roof panels.

3.8 TEMPORARY WEATHER PROTECTION

A. Contractor shall take necessary precautions and provide tarps as needed to assure watertight roof during construction in wet weather. At the Contractor’s discretion, work may be performed in stages to limit exposure.

Rev. Date 02/23 WRRD Bldg. 1016 Roof Replacement 07412 - 6/6

4. PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Measurement will be based on quantities as shown in the Schedule of Items.

4.2 BASIS OF PAYMENT

07412-1 Metal Roof Replacement Square

Rev. 3/5/2023 WRRD Bldg. 1016 Roof Replacement 07710 - 1/2 Roof Edge Drainage Systems

SECTION 07710

ROOF EDGE DRAINAGE SYSTEMS

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section specifies removal, disposal of existing and installation of new gutters, downspouts and splash blocks.

1.02 SUBMITTALS

A. Product Data: For each product indicated.

B. Samples: For gutters and downspouts.

1. Prior to ordering products, submit Manufacturer’s standard color Samples for CO’s selection.

1.03 COORDINATION

A. Coordinate work with other operations to avoid damage to installed products or installed roofing.

2. PART 2 - PRODUCTS

2.01 GUTTERS AND DOWNSPOUTS

A. General:

1. Gutters: Formed Aluminum, .032 gauge, seamless/continuous, 6”, K Style, with mitered and welded corners. Include steel straps formed from at least 0.028-inch- (0.7-mm-) thick, galvanized steel sheet; hangers or other attachment devices; screens; end plates; and trim and other accessories indicated or required for complete installation.

2. Downspouts: Formed Aluminum, .032 gauge, square.

3. Splash Block: Manufactured, concrete, 12”x 24”

B. Additional features

1. Downspout starters (fascia sump) with downspout starter hole.

2. Flow-through gravel stop with perforated vertical leg.

C. Gutter Spikes.

1. ASTM F1667.

D. Plastic Cement.

1. ASTM C920, Type S.

3. PART 3 – EXECUTION

3.01 DEMOLITION

A. Remove existing rain gutters and downspouts and dispose off of government property.

Rev. 3/5/2023 WRRD Bldg. 1016 Roof Replacement 07710 - 2/2 Roof Edge Drainage Systems

B. Do not begin installation until substrates have been properly prepared. Notify CO if immediately if substrates are inadequate

C. Verify governing dimensions at building.

3.02 GUTTERS

A. Attach with spikes and ferrules or screws and hangers as approved by manufacturer. Install as shown in drawings and per manufacturer’s instructions.

B. Isolation: Where metal surfaces of units contact dissimilar metal or corrosive substrates, including wood, apply bituminous coating on concealed metal surfaces or provide other permanent separation as recommended in writing by manufacturer.

C. Expansion Provisions: Install running lengths to allow controlled expansion for movement of metal components in relation not only to one another but also to adjoining dissimilar materials, including flashing and roofing materials, in a manner sufficient to prevent water leakage, deformation, or damage.

D. Immediately after installation, clean exposed metal surfaces according to manufacturer’s written instructions. Touch up damaged metal coatings.

3.03 DOWNSPOUTS

A. Fasten at top and bottom and at 10’ O.C. Terminate leaders with a turnout from building to connect to splash pads.

B. Isolation: Where metal surfaces of units contact dissimilar metal or corrosive substrates, including wood, apply bituminous coating on concealed metal surfaces or provide other permanent separation as recommended in writing by manufacturer.

C. Expansion Provisions: Install running lengths to allow controlled expansion for movement of metal components in relation not only to one another but also to adjoining dissimilar materials, including flashing and roofing materials, in a manner sufficient to prevent water leakage, deformation, or damage.

D. Immediately after installation, clean exposed metal surfaces according to manufacturer’s written instructions. Touch up damaged metal coatings.

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

4.01 METHOD OF MEASURMENT

A. Lump sum quantities, measurement will be made of all completed work as shown on the Drawings and as specified including incidentals, for a completely functioning system.

4.02 BASIS OF PAYMENT

A. Payment will be made as follows:

07710-1 Roof Edge Drainage Systems Lump Sum

BLDG. 2012 ROOF PLAN

SCALE: 3/8" = 1'

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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PACIFIC NORTHWEST REGION

BUILDING 2012

ROOF

REPLACEMENT

ROGUE RIVER-SISKIYOU

NATIONAL FOREST

WILD RIVERS RANGER DISTRICT

ROOF PLAN

R. SCHAFF

M. CODY

X.XXX

VERIFY SCALE

BAR IS ONE INCH ON

ORIGINAL DRAWING. IF

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SHEET, ADJUST SCALES

ACCORDINGLY.

1"0"

BLDG. 2012 GUTTER, DOWNSPOUT, SPLASH PAD PLAN

SCALE: 3/8" = 1'

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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PACIFIC NORTHWEST REGION

BUILDING 2012

ROOF

REPLACEMENT

ROGUE RIVER-SISKIYOU

NATIONAL FOREST

WILD RIVERS RANGER DISTRICT

GUTTERS,

DOWNSPOUTS, &

SPLASH PADS

R. SCHAFF

M. CODY

X.XXX

VERIFY SCALE

BAR IS ONE INCH ON

ORIGINAL DRAWING. IF

NOT ONE INCH ON THIS

SHEET, ADJUST SCALES

ACCORDINGLY.

1"0"

3. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

2. All materials and construction techniques shall meet applicable Local codes or the requirements herein, whichever is stricter.