CSAG TAC Roof Replacement of Sections 31, 24, 13, 140, 146 and 148 Building 9001, Tinker Air Force Base, Oklahoma City, OK Amendment 0002

This is a SOLICITATION PHASE 1 OF 2 notice for a design-build construction project for roof sections 31, 24, 13, 140, 146 and 148 for the CSAG TAC Roof for Building 9001 at Tinker Air Force Base, Oklahoma City, OK.

The U.S. Army Corps Of Engineers - Tulsa has been tasked to solicit and award for the replacement of roof sections 31, 24, 13, 140, 146 and 148 for the CSAG TAC Roof for Building 9001 at Tinker Air Force Base, Oklahoma City, OK. 

Work for this project involves Roof Replacement of sections 31, 24, 13, 140, 146 and 148. The scope of work for each roof section includes:

• Remove existing coal tar pitch built‐up roofing
• Provide new roof system with a fully adhered 90‐mil Ethylene Propylene Diene Terpolymer (EPDM)   membrane system with a 30 year warranty, with a minimum average R-38  ISO 95+ Polyisocyanurate  tapered insulation, and a vapor barrier on ½” gypsum fiber secure rock. The roof system will be designed as a Class A Fire Rated System.
• Install new roof drain and bowl assemblies.
• Remove existing 6” by 6” metal plates in designated areas.  Requires access from beneath roof deck.
• Remove existing expansion joints.
• Provide new expansion joints.
• Construct and Install ramps over expansion joints.
• Remove all existing base flashing, counter flashing, and coping cap metal.
• Provide new base flashing, counter flashing, and coping cap metal.
• Remove all abandoned equipment, where identified.
• Replace existing smoke/heat vents with an updated design to be more resistant to water infiltration.
• Raise fire hydrant boxes to meet 8” curb height requirement.
• Design and construct roof system to meet secondary roof drainage requirements.
• Metal deck replacement, when required.
• Required Schedule Specifications (SECTION 01 32 01.00 20) on this project. A Designated Authorized Representative for Schedule is required.  Prepare for approval a Project Schedule showing the sequence in which the Contractor proposes to perform the work and dates on which the Contractor contemplates starting and completing all schedule activities.  The scheduling of the entire project, including the design, construction, and close out sequences, will be required.   The schedule shall be use for forward planning as well as a project-monitoring tool.  Monthly Progress Meetings will be required.

In accordance with FAR 36/DFARs 236, the estimated construction magnitude for this project is between $5,000,000 and $15,000,000.

The North American Industry Classification System code for this procurement is 236220 which has a small business size standard of $39,500,000.   

Small Businesses are reminded under FAR 52.219-14, (Deviation 2019-O0003), Limitations on Subcontracting.  Firm will not pay more than 85% of the amount paid by the Government for contract performance, excluding the cost of materials, to subcontractors that are not similarly situated entities. Any work that a similarly situated entity further subcontracts will count toward the 85% subcontract amount that cannot be exceeded. Large Businesses must comply with the FAR 52.219-9 by submitting a Small Business Subcontracting Plan should this action be solicited as Full and Open Competition and an award is made to a large business firm.

Amendment W912BV21R0035-0001:

(1) Change proposal due date from 14 June 2021 to 21 June 2021 under section 00 21 00, paragraph 1.10.
(2) Change Page count from 22 pages to 26 pages under section 00 22 00, paragraph 5.1.4.
(3) Change language from "with a value of $5,000,000 million or greater" to "submitted under paragraphs 5.1.1, 5.1.1.1 and 5.1.1.2" undersection 00 22 00, paragraph 5.2.1f.
(4) Change language from "1 and 2" to "2 and 3" under section 00 22 00, paragraph 5.2.2.

This is a SOLICITATION PHASE 1 OF 2 notice for a design-build construction project for roof sections 31, 24, 13, 140, 146 and 148 for the CSAG TAC Roof for Building 9001 at Tinker Air Force Base, Oklahoma City, OK.

The U.S. Army Corps Of Engineers - Tulsa has been tasked to solicit and award for the replacement of roof sections 31, 24, 13, 140, 146 and 148 for the CSAG TAC Roof for Building 9001 at Tinker Air Force Base, Oklahoma City, OK. 

Work for this project involves Roof Replacement of sections 31, 24, 13, 140, 146 and 148. The scope of work for each roof section includes:

• Remove existing coal tar pitch built‐up roofing
• Provide new roof system with a fully adhered 90‐mil Ethylene Propylene Diene Terpolymer (EPDM)   membrane system with a 30 year warranty, with a minimum average R-38  ISO 95+ Polyisocyanurate  tapered insulation, and a vapor barrier on ½” gypsum fiber secure rock. The roof system will be designed as a Class A Fire Rated System.
• Install new roof drain and bowl assemblies.
• Remove existing 6” by 6” metal plates in designated areas.  Requires access from beneath roof deck.
• Remove existing expansion joints.
• Provide new expansion joints.
• Construct and Install ramps over expansion joints.
• Remove all existing base flashing, counter flashing, and coping cap metal.
• Provide new base flashing, counter flashing, and coping cap metal.
• Remove all abandoned equipment, where identified.
• Replace existing smoke/heat vents with an updated design to be more resistant to water infiltration.
• Raise fire hydrant boxes to meet 8” curb height requirement.
• Design and construct roof system to meet secondary roof drainage requirements.
• Metal deck replacement, when required.
• Required Schedule Specifications (SECTION 01 32 01.00 20) on this project. A Designated Authorized Representative for Schedule is required.  Prepare for approval a Project Schedule showing the sequence in which the Contractor proposes to perform the work and dates on which the Contractor contemplates starting and completing all schedule activities.  The scheduling of the entire project, including the design, construction, and close out sequences, will be required.   The schedule shall be use for forward planning as well as a project-monitoring tool.  Monthly Progress Meetings will be required.

In accordance with FAR 36/DFARs 236, the estimated construction magnitude for this project is between $5,000,000 and $15,000,000.

The North American Industry Classification System code for this procurement is 236220 which has a small business size standard of $39,500,000.   

Small Businesses are reminded under FAR 52.219-14, (Deviation 2019-O0003), Limitations on Subcontracting.  Firm will not pay more than 85% of the amount paid by the Government for contract performance, excluding the cost of materials, to subcontractors that are not similarly situated entities. Any work that a similarly situated entity further subcontracts will count toward the 85% subcontract amount that cannot be exceeded. Large Businesses must comply with the FAR 52.219-9 by submitting a Small Business Subcontracting Plan should this action be solicited as Full and Open Competition and an award is made to a large business firm.