Amendment_0006.docx

The purpose of this amendment is to provide answers to questions that have been asked, and to update the wage determination:

1. Incorporate the following questions/answers into the solicitation:

QUESTION 1: Roof plans indicate fully adhered EPDM, on Backer Board, on 2 layers 1.5” R7.5 insulation, on Backer Board, on metal deck. Details do NOT indicate the Backer Board on the metal deck, although it is required for a Class A roof if the insulation is to be extruded polystyrene insulation. Please confirm the note on the roof plan is correct?

ANSWER 1: The roof plan notes are correct. A backer board should be installed to in the metal roof deck.

QUESTION 2: Is it acceptable to quote 2 layers 1.5” R8.6 POLYISOCYANURATE insulation in lieu of extruded insulation and thus eliminate the need for backer board above or below the insulation and still maintaining a Class A roof assembly?

ANSWER 2: Contractor’s will bid with extruded insulation and the layer of backer board included on the metal deck.

QUESTION 3: Regarding the bid bond for the Roof Repair, Bldg 6900, can you please specify the amount of the bid bond required?

ANSWER 3: In accordance with FAR 52.228-1, the bid guarantee shall be 20% of the bid price or $150,000, whichever is less.

QUESTION 4: Please provide the specific bid forms for the solicitation.

ANSWER 4: A successful bid package shall include: a completed SF 1442 (blocks 19 and 20 executed), a completed bid schedule (schedule B of the solicitation), registration in both SAM and ORCA websites, and a properly executed bid guarantee in accordance with FAR 52.228-1.

QUESTION 5: Have cores been taken of the existing roof?

ANSWER 5: During the site visit conducted 12 Sep 2017, a contractor took a core sample for the audience to see, and promptly repaired the roof. It is believed that this core revealed 5 ½” of insulation material to be removed from the roof, which is supported by the drawings. However, this information cannot be verified for accuracy, and no other cores can be taken at this time due to weather.

QUESTION 6: Is Versico an acceptable substitute to the roofing material specified in the solicitation?

ANSWER 6: After review, yes, Versico is determined to be an acceptable substitute. See attached brochure for further information on product.

2. Davis Bacon Wage Rates are applicable to this project. Current prevailing wage determination(s) at time of issuance of solicitation are MI180079, 01/05/2018, MI 79, Mod 0. Applicable wage rates can be found at Applicable wage rates can be found at http://www.wdol.gov/wdol/scafiles/davisbacon/MI79.dvb

3. All other terms and conditions shall remain the same.