RFI's_and_Responses___2_(10_Aug_16)_W911S2-16-B-8001_Roofing_Requirements.pdf

Fort Drum Roofing Requirements Solicitation W911S2-16-B-8001

Second Round of Questions and Government Responses

August 10, 2016

1: Per your RFI response to question 1 in the first round of questions, referencing roof system warranty requirements for this bid:

Standing Seam Metal Roof Systems can be installed with various types of warranties. Each type carries specific costs and design requirements. There is a no-cost “Finish Warranty” warranty which covers only the paint finish on the metal panels and trims. A watertight system warranty from a manufacturer can be purchased in a number of types and at a variety of costs. As example, a 20-year no-dollar-limit watertight system warranty can be purchased, but this would require engineered shop drawings, calculations and system certifications from the manufacturer. So we need to know exactly what type of warranty is required on the standing seam metal roofs. Do you want just a “finish warranty” that typically comes at no extra cost? Or do you also want a no-dollar-limit watertight warranty from the manufacturer? Other options include just a 20-year “watertight side lap warranty” that is less expensive than a full system warranty but it covers only leaking from the joints of the metal panels. Due to the tremendous difference in the costs of various available warranties and associated engineering costs would you please state specifically what warranties are required from the manufacturer on this contract? The 1-year No-Dollar-Limit Installers Roof System warranty is clearly stated in your first RFI response and needs no further response.

RESPONSE: 20-year No Dollar Limit Warranty (Watertight System Warranty) is required. No Dollar Limit means there is no cap on what the manufacturer must pay to bring the roof back to a watertight condition. This warranty is issued by the manufacturer and covers both labor and materials. It is standard in the industry for the roofing contractor to have responsibility for workmanship issues of a warranty. However, with a No Dollar Limit Warranty, if a contractor goes out of business during that time the material manufacturer automatically picks up the responsibility.

2: Per your RFI response to question 6 in the first round of questions, referencing the 22 gauge metal requirement:

The bid documents call for 100 MPH wind uplift roof systems. Your response to question #6 changes that to 120 MPH wind uplift requirement. Is that now the requirement for all metal roofs on this contract? Clearly a 120 MPH requirement would be very costly for the engineering and the system installation requirements to achieve that new standard. Additionally, are we now to assume that we will not be required to install any 22 gauge metal roofs on this contract?

RESPONSE: Wind design shall provide a roof assembly which has been tested in accordance with AST

E1592, and the roof manufacturer’s technical staff will provide the necessary clip spacing based on the

ASTM E1592 test results. The ASTM E1592 tested assembly and structural performance characteristics must be used when performing the ASCE 7 wind uplift calculations. Determine wind uplift pressures and dimensions of the corners, perimeter, and field of the roof in accordance with ASCE-7, Minimum Design Loads for Buildings and other Structures. Delineate calculated values in the roof specification or drawings. Utilize independently tested and rated roof systems, such as Factory

Mutual (FM), Underwriters Laboratory (UL), and Single Ply Roofing Industry (SPRI).

The Fort Drum standard is a roof design that will withstand a 105 mph wind gust. The 105 mph wind speed is corrected in the Statement of Work in Amendment 02. A corresponding, corrected

Attachment 1 – Detailed Pricing Schedule is also provided in Amendment 02.

3: Per your RFI response to question 7 in reference to manufacturer roof system certifications:

Your response refers to the “contractor performing the work” as holding all roofing system certifications. The original question was seeking clarification on if the bidding contractor (prime contractor) can also rely on subcontractors who hold specific roof system certifications to install roofs that qualify for all required system warranties. Specifically- are you requiring all bidding SDVOSB’s to hold manufacturer certifications for every type of roof system on the ELIN’s? Or can they also rely on subcontractors who hold such certifications to perform installations. It is understood that the bidding contractor must perform a minimum of 25% of the work over the 60 month contract period.

RESPONSE: Qualified Installer: Most if not all manufacturer’s warranties are available ONLY if a certified contractor is used to install the material. As a quality assurance item the Prime Contractor shall specify and require that only contractors certified to install twenty-year, no-monetary-limit full-system warranties be allowed to install the roof system. Since the Government does not have a direct contractual relationship with any prime contractor’s subcontractor, including a roof subcontractor, the Prime Contractor should attempt to achieve the same legal protection as the

Government by requiring the roof subcontractor to be responsible to the Prime Contractor through such an instrument as a Roof Installers Warranty to Prime Contractor. While this is not a contractual requirement of the Government, it is ultimately a business decision of the Prime

Contractor because it is the Prime Contractor’s responsibility to ensure ALL roof work, including warranty repairs, are performed to the satisfaction of the Government.