STATEMENT_OF_WORK.pdf

United States Department of Agriculture Research, Education, and Economics

Agricultural Research Service

Location Support Staff 2150 Centre Ave, Bldg. D, Ste. 330 • Fort Collins, CO 80526

Voice: (970) 492-7704 • Fax: (970) 492-7719 • E-mail: Molly.Jackson@ars.usda.gov An Equal Opportunity Employer

STATEMENT OF WORK

Project: Re-Roof of Buildings 18 (Shop/Tractor Shed) and 17 (Barn)

Overview: This requirement will consist of a Base with an Option.

1. Base: Furnish all labor, materials, and equipment to perform all work necessary to remove existing cedar shakes and install new steel roofing on Building 18 (540900B018, SHOP/Tractor Shed), at the High Plains Grasslands Research Station, Cheyenne, WY. Building 18 is a shop/tractor shed (see attached photos) with 8 rise per 12 horizontal roof slope. Building 18 was constructed during the late 1920's or early 1930's. Roofs consist of cedar shakes over wood sheathing. The building has two brick chimneys on the roof. Building 18 has a floor plan of approximately 120 feet by 30 feet with two wings of 30 feet by 60 feet with short soffits, as shown in the photos attached.

2. Option #1: Furnish all labor, materials, and equipment to perform all work necessary to remove existing cedar shakes and install new steel roofing on Building 17 (540900B017, Barn), at the High Plains Grasslands Research Station, Cheyenne, WY. Building 17 is a barn (see attached photos) with 8 rise per 12 horizontal roof slope. Building 17 was constructed during the late 1920's or early 1930's. Roofs consist of cedar shakes over wood sheathing. Building 17 has a roof of approximately 60 feet horizontal by 30 feet horizontal with short soffits as shown in the photos attached. It also has an addition of 32 feet horizontal by 18 feet horizontal.

Location:

USDA, ARS, PA, RRRU

High Plains Grasslands Research Station 8408 Hildreth Road Cheyenne, WY 82009

Scope of Work: The contractor shall furnish all labor, materials, and equipment to perform all work necessary to remove existing cedar shakes and install new steel roofing on Buildings 18 and 17, in accordance with the below requirements:

1. Shingle Removal and Steel Roofing:

A. Contractor shall remove the existing cedar shakes, felt underlayment, flashing, roof jacks, metal drip edges, and any other obstructions.

B. Contractor shall remove and replace any damage roof sheathing with the same thickness and material as the existing sheathing.

C. Ridge, Eave and Rake Flashing: Contractor shall provide and install new metal drip edge made of aluminum, similar to that shown in attached files. Metal drip edge shall be provided along the eaves and rakes of the roof. The drip edge shall be applied directly over the underlayment along the rakes and directly on the wood deck at the eaves. Drip edge shall extend back from the edge of the deck not more than 3 inches and shall be secured with compatible nails spaced not more than 10 inches on center along the inner edge.

D. Chimney Flashing: Provide and install step flashing woven with roofing courses. Provide and install roofing laps base flashing, 4 inch minimum, and base flashing wrap around corners, extend under steel roof, 4 inch minimum. Provide and install cricket flashing on topside of chimney. Flashing for the masonry chimney shall be copper, C11000 cold rolled copper ASTM B370, weight and size to suit seam locations.

E. Valley Flashing: Provide and install open valley metal flashing.

F. Sidewall or Step Flashing: Provide and install either a single-piece flashing or step flashing to the sidewall.

G. Pitch-Change Flashing: Provide and install metal flashing for pitch-change roofing.

H. Level Wall Flashing: Provide and install metal flashing the top of roof where the roof abuts a vertical wall. Flashing to wall to extend 3 inch minimum. Flashing extends 4 inch minimum onto roof, depending on roof material and pitch.

I. Roof Flashing: Flashing material not specified in the specifications shall be aluminum, 0.024 inch thick.

J. Roof Jacks: Provide and install new roof jacks with neoprene gasket to seal plumbing vents and other roof penetrations.

Contractor shall field measure the vent piping diameter.

K. Before any steel roofing is applied, Contractor shall provide and install two layers of 15 lb. asphalt-saturated felt underlayment to the roof deck sheathing.

L. Steel roofing: Pro-Panel II Steel Panels or equal.

1. 29 gauge steel.

2. Panel Coverage Width: 36”.

3. Rib Height: 5/8”.

4. Color: Forest Green.

5. Length for continuous slopes.

6. Panels made from hot dipped aluminum-zinc allow coated sheet steel will not rupture, fail structurally, or perforate within a period of twenty-five years after contract completion. Panels shall have a finish warranty on film integrity for 45 years, chalk rating not to exceed 7 for 30 years, fade rating not to exceed 6 NBS units for 30 years, and not exhibit accumulation of red rust for a period of five years on steel beyond ½ inch from edge of panel, similar or equal to Metal Sales Warranty.

M. Delivery and Storage of Roofing Materials: The Contractor shall deliver materials in manufacturer’s unopened bundles and containers with the manufacturer’s brand and name marked clearly. Roofing steel shall be stored in dry storage or covered storage and protection from the weather until applied. Contractor shall be responsible for providing storage facilities and security.

N. Screws: Screws shall be in accordance with manufacturer’s printed instructions, minimum of 5/16” x 1-1/2” Metal wood screws.

O. No roofing materials containing asbestos shall be used.

P. Roof surfaces shall be smooth, firm, dry and free from loose boards, large cracks, and projecting ends that might injure the roofing. Vents and other projections through roofs shall be properly flashed and secured in position, and projecting nails shall be driven firmly home.

Q. Steel roofing material shall be applied in accordance with the roofing manufacturer’s printed instructions.

R. Excess Steel Roofing: Excess steel roofing materials shall be given to ARS personnel for future use.

2. Staging Area: The Contractor shall coordinate with the Contracting Officer’s Representative (COR) for approval on the staging area for material storage, parking, dumpster, and trailers. Contractor shall be responsible for their own materials and equipment left at the job site.

3. Working Hours: All work to be performed shall be scheduled from 7:00 A.M. To 4:00 P.M. (Monday to Friday). Contractor shall coordinate with the COR for changes to working hours so arrangement and approval can be obtained.

4. Work Schedule: All material, equipment and labor shall be on the job site before any demolition work can be performed on the roof.

5. Protection of Work in Progress: At the end of day’s work or whenever precipitation is imminent, the exposed roof shall be sealed or covered against moisture. Roofing ply felts shall not be cut off to provide covering protection. The exposed roof shall be protected using a full width sheet of plastic film at least 6 mil thick. The plastic edge at the end of the complete roofing shall be set in continuous bead of bituminous cement. The other edges shall be sealed to the bare roof deck using continuous pressure sensitive tape.

6. Debris and rubbish shall be removed from the job site daily. Government dumpsters shall not be used by the Contractor.

7. It is recommended that the Contractor visit the job site to identify the site condition and difficulty of work.

8. Warranty: Contractor shall provide a parts and labor warranty for all parts supplied and labor performed by the contractor for a period of one year from the date of final project acceptance and commissioning.

Period of Performance: 60 days after receipt of the Notice to Proceed

• If Option #1 is awarded, an additional 30 days will be add to the completion timeframe, resulting in a 90 day period of performance after the receipt of the Notice to proceed.

Please ensure quotes are final and include all applicable expenses (labor, equipment rentals, travel, etc.).