Sources Sought_140R4021R0013_1.pdf

Flaming Gorge Powerplant Roof Repair

Type: Sources Sought

1. Notice

This is not a solicitation but rather a Sources Sought Synopsis to determine potential sources for information and planning purposes only.

1.1

The purpose of this Sources Sought is to conduct market research to determine if responsible sources exist, to assist in determining if this effort can be competitive and/or a total Small Business Set-Aside. The proposed North American Industry Classification Systems (NAICS) Code is 238160, Roofing Contractors, which has a corresponding Size standard of $16.5M. The Government will use this information to determine the best acquisition strategy for this procurement. The Government is interested in all small businesses to include 8(a), Service- Disabled Veteran-Owned, Hubzone, and Women-Owned small business concerns. The government requests that interested parties respond to this notice if applicable and identify your small business status to the identified NAICS code. Additionally, please provide any anticipated teaming arrangements and delineate between the work that will be accomplished by the prime and the work accomplished by the teaming partners.

2. Description

The Bureau of Reclamation has a need to replace (2) roofs at the Flaming Gorge Facility. The Flaming Gorge Field Office is located, 42 miles North of Vernal, Utah on Hwy 191 in Dutch John, Utah 84023. This effort is seeking a Contractor who can provide all materials, equipment, and labor to replace both roofs on two separate buildings including a Site Plan for the Powerplant to specifically address protecting tail waters of the Green River and how the Contractor shall protect it from any kind of waste or pollution during removal and installation of roof.

The first roof repair shall be performed on the Power Plant roof which is approximately 15,744 square feet consisting of 6 sections. The Contractor shall remove and properly dispose of existing roof prior to installing new roof, including all roof decking, drains, new board insulation with vapor barrier, and fully adhered ballasted Ethylene Propylene Diene Monomer (EPDM) membrane roof with pavers.

The second roof repair will take place on the Carpenter Shop Roof which is approximately 2,648 square feet and is in the town of Dutch John, UT, approximately 3 miles from the power plant site.

Specification Details:

The Contractor shall remove and properly dispose of existing roofs prior to installing new roof which includes all roof decking, drains, new board insulation with vapor barrier, and fully adhered ballasted EPDM membrane roof.

Power Plant and Carpenter Shop Roof Installation Information:

A. Complete all membrane and membrane flashing work, including inspection and repair of Power Plant membrane and seams in the area of ballast paver application prior to applying ballast paver system.

B. Install protection mat over roof membrane in accordance with roof membrane manufacturer's recommendations. Provide minimum 3-inch side laps and 6-inch end laps. Turn mat up vertical surfaces to extend 2 inches above ballast. Immediately after placement of protection mat, apply paver ballast system.

C. Install EPDM pavers in accordance with manufacturer’s instructions to properly cover protection mat at entire area of roof.

D. Install fittings and accessories required for complete installation.

E. Install EPDM pavers to align with structure lines and with each other. Secure by interlocking to prevent movement.

F. Galvanizing Repair

G. Roof Deck Installation

H. Where locations and dimensions of miscellaneous metalwork shown on drawings are dependent upon existing equipment and/or equipment furnished, confirm locations and dimensions prior to fabrication of miscellaneous metalwork.

Roof Deck Insulation

A. ASTM C 1289, Type I, Class 1, Grade 3 (25 psi).

1. Manufactured without use of hydrochlorofluorocarbon (HCFC) blowing agents.

2. Board Thickness: 2 inches minimum. Taper insulation to slope toward roof drains for adequate drainage and to eliminate potential for ponding.

3. Microbial growth resistant in accordance with ASTM D 6329.

4. Insulation shall be intended by the manufacturer for use above cement roof decking and beneath a membrane and EPDM ballast pavers.

5. Insulation system and facer material must be compatible with membrane application specified and as approved by the roof membrane manufacturer and incorporate vapor barrier. Alternatively, a separate vapor barrier membrane may be installed as approved by CO and manufacturer, provided that both are fully adhered to each other and to cement roof deck.

6. Finish on upper side of insulation shall be compatible with adhesive required by the roof membrane manufacturer

7. Insulation shall be a standard product of the manufacturer and shall be factory marked with the manufacturer's name or trademark, the material specification number, the R-value at 24 degrees C 75 degrees F, and the thickness. Boards shall be marked individually.

8. The long-term thermal resistance (LTTR) value of the insulation shall be not less than 14.5.

9. Insulation panels should be no larger than 4 feet by 8 feet.

Ballasted Epdm Roofing

EPDM Sheets

A. Ethylene Propylene Diene Monomer (EPDM), ASTM D4637/D4637M, Type III, fabric or fleece backed, 0.060 inch (60 mil) nominal thickness for combination fully adhered and ballasted application. The minimum thickness must not be less than minus 10 percent of the specified thickness value. EPDM membrane thickness specified is exclusive of backing material on the EPDM membrane. Principal polymer used in manufacture of the membrane sheet must be greater than 95 percent EPDM. Width and length of sheet must be maximum width attainable as recommended by the manufacturer to minimize field formed seams in the field of the roof.

1. Provide sheeting layer between board insulation and EPDM membrane if recommended by membrane manufacturer. Provide adhesive attachments (sheeting layer to top of insulation and membrane to top of sheeting layer) per membrane manufacturer instructions.

2. Seam Tape:

a. Double-sided synthetic rubber tape, minimum 0.03-inch-thick, minimum 3 inches wide. The roof membrane manufacturer must supply seam tape recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet materials to each other for the application specified and conditions encountered.

3. Lap Splice Adhesive:

a. Low volatile organic compound (VOC) synthetic rubber adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet membrane materials to each other in areas of membrane flashing.

4. Bonding Adhesive

a. Low volatile organic compound (VOC) adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for bonding EPDM membrane materials to insulation, metal, or other substrate materials.

5. Lap Cleaner, Lap Sealant, and Edge Treatment:

a. As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

6. Water Cutoff Mastic/Water Block:

a. As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

7. Membrane Flashings and Flashing Accessories:

a. Membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations, and prefabricated pipe seals, must be minimum 0.045 inch minimum cured EPDM, as recommended by the roof membrane manufacturer or minimum 0.055 inch thick uncured EPDM sheet in compliance with ASTM D4811/D4811M, Type I. Use cured EPDM membrane to the maximum extent recommended by the roof membrane manufacturer. Limit uncured flashing material to reinforcing inside and outside corners and angle changes in plane of membrane, and to flash scuppers, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical.

8. Flashing Tape:

a. EPDM-backed synthetic rubber tape, minimum 6 inches wide as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

9. Protection Mat / Slip Sheet:

a. Minimum 6 ounce per square yard ultraviolet resistant polypropylene, non-woven, needle punched fabric for use as protection mat under ballast system and as recommended and approved by the roof membrane manufacturer.

10. Ballast Pavers:

a. New EPDM roof pavers on Powerplant roof to replace concrete pavers.

11. Metal Flashing at Perimeter of Roof:

a. Provide rigid hot-dip galvanized metal flashing continuous around perimeter of roof at top of powerplant and carpenter shop walls, fabricated to extend and overlap edge of pavers minimum 4 inches to secure and protect the edge of pavers from wind uplift. Meet requirements of Section 05 50 00 – Metal Fabrications.

b. Metal flashing and attachment along cap/nailer at top of walls shall be adequate to resist 30 pounds per linear foot of uplift at the edge of flashing overlapping the pavers.

12. Pre-Manufactured Accessories:

a. Pre-manufactured accessories must be manufacturer's standard for intended purpose, comply with specifications, compatible with the membrane roof system and approved for use by the roof membrane manufacturer.

13. Wood Products:

a. Do not allow fire retardant treated materials to be in contact with EPDM membrane or EPDM accessory products, unless approved by the membrane manufacturer and the CO.

14. Membrane Liner:

a. Self-adhering EPDM membrane liner conforming to ASTM D4637/D4637M, or other waterproof membrane liner material as approved by the roof membrane manufacturer and the CO.

15. Flashing Cement:

a. Provide a self-vulcanizing butyl compound flashing cement for splicing laps and for flashings workable at 20 degrees F. Obtain a recommendation for such flashing cement from the roofing membrane manufacturer.

3. Requested Responses

Provide the following Business Information for your company:

• Company Name:

• Address:

• Point of Contact:

• DUNS Number:

• Phone Number:

• E-mail Address:

• Web Page Address:

• System for Award Management (SAM) Registration (Yes/No):

• Recommended North American Industry Classification System (NAICS Code) if other than

238160:

Based on above NAICS code, state whether your company is small business and provide additional information regarding the type of small business (women-owned, small disadvantaged business, HUBzone,8(a), etc.). For more information refer to: http://www.sba.gov/content/table-small-business-size-standards.

4. Potential Offeror Capabilities

Please provide responses to the following items:

a) What is your company’s experience in providing roof repair? Include contract numbers (if applicable), a brief description of the work performed, period of performance, agency/organization supported, and individual points of contact (Contracting Officers or Program Managers).

b) Does your company currently have any teaming agreements in place that will allow for successfully meeting the Government's requirements? In addition, please identify the roles associated with the teaming arrangement.

c) What portion of the work is your company capable of performing?

d) Specific but brief material information that is efficient enough to show that the potential product meets the specifics of the roof removal and replacement.

e) Does your company foresee any challenges with the information provided?

f) Provide other relevant topics, concerns, or information not addressed in this posting.

Please provide the responses to the questions above to Aubrie Watson, Contract Specialist, at awatson@usbr.gov no later than 2PM MST on 12 April 2021.

5. Potential Offeror Capability Briefings

A focused capabilities briefing may be required at the Government's discretion. The Government will contact interested vendors directly should it be determined that a capability briefing is needed.

6. Response Procedures

Contractors responding to this posting are advised their response does not guarantee awards in future solicitations or contracts. This is not a Request for Quote or an Invitation for Bid, nor is it to be construed as a commitment by the Bureau of Reclamation. Submission of any information in response to this Sources Sought is purely voluntary; the Government assumes no financial responsibility for any costs incurred associated with preparation or response to this posting.

mailto:awatson@usbr.gov