NASA/Ames Research Center, JA:M/S 241-1, Moffett Field, CA 94035-1000

Z -- REROOFING OF BUILDING N233: ACCOMPLISH SOL RFQ2-37085MJM DUE 061099 POC Michael J. McIntyre, Purchasing Agent, Phone (650) 604-1364, Fax (650) 604-3772, Email mmcintyre@mail.arc.nasa.gov -- Barbara A. Drake, Contracting Officer, Phone (650) 604-3002, Fax (650) 604-4646, Email bdrake@mail.arc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/ARC/date.html#RFQ2-37085MJM. E-MAIL: Michael J. McIntyre, mmcintyre@mail.arc.nasa.gov. THIS NOTICE CONSTITUTES AMENDMENT NO. ONE (1) TO THE COMBINED SYNOPSIS/SOLICITATION/RFQ FOR THE "REROOFING OF BUILDING N233". Companies shall acknowledge all amendment(s) in their quote. This notice serves as the official amendment to subject synopsis/RFQ and a written amendment will not be issued. The purpose of this amendment is to ANSWER ALL QUESTIONS RAISED ON THE N233 REROOFING JOB-WALK (5/27/99) AS FOLLOWS: 1. Question: How many existing roofs are there on the building? Answer: There are two roofs present under the gravel ballast. 2. Question: How thick is the existing insulation? Answer: The existing fiberglass insulation is approximately 2-1/2 inches thick. 3. Question: Does the new roofing system require tapered insulation? Answer: No. Tapered insulation shall only be used to form new "crickets" as described in specifications and drawings. 4. Question: The specification requires insulation boards to be 4'X 4'. Can we use insulation boards that are 4'X 8'? Answer: Yes, 4'X 8' boards are acceptable. 5. Question: Does the government want a 20 year manufacturer's warranty for the new roof. Answer: No. The government wants a built-up roof system that would qualify for a 20 year manufacturer's warranty. The roof system shall also conform to all standards referenced in the specifications. 6. Question: Can we re-use any of the existing metal flashing? Answer: No. All metal flashing shall be new as specified. 7. Question: Are we supposed to demo and re-roof the overhangs surrounding sections 1, 2 an 3. Answer: No. The existing roofs and metal flashing on these overhangs are to be removed down to the concrete. No new roofing is to be installed. 8. Question: Is the existing insulation mopped to the concrete deck? Answer: Yes 9. Question: Can we mop insulation to existing concrete deck? Answer: Yes 10. Question: Can we install a composite insulation board (polyisocyanuarate and fiber board)? Answer: No 11. Question: What is the height of the building? Answer: The height of the lower roofs and overhangs is approximately 12.5 feet and the height of the wings (sections 2 and 3) is approximately 19 feet. 12. Question: Do you want us to seal concrete wall above the new metal wall flashing? Answer: No. 13. Question: Shall the asbestos contained in the mastic and the parapet walls be treated as a hazardous material and a friable material? Answer: YES. AND, All people working on and around the asbestos shall have had "ASBESTOS AWARENESS TRAINING". You may be asked for individual certificates of training!! 14. Question: What sort of fall protection will be required for this project. Is a full-time monitor sufficient? Will a full-time monitor be allowed for work on the overhangs? Answer: See CFR 1926.501(b)(l) for you answer. 15. Question: Is the lower roof adjacent to the western wing (section 3) included in the project? Answer: Yes. Refer to the drawings, sheet 233-9901-A3. 16. Question: What type of precautions against moisture do we have to take during the 24 hours after the concrete deck has been primed? Answer: Referto the manufacuturer's recommendations. 17. Question: Are we required to glaze coat fiberglass plies to protect against moisture prior to installation of capsheet? Answer: If contractor does not wish to glaze un-capped fiberglass plies, the contractor shall cover all exposed fiberglass plies with a tarp. The due date for receipt of offers is not extended. Companies shall provide the information stated in the SYNOPSIS/SOLICITATION/RFQ posted on the NASA Acquisition Internet Service (NAIS) on MAY 19, 1999. Documents related to this procurement are available over the Internet and are in Microsoft Office Suite (Word 6.0, Excel 5.0, or PowerPoint 4.0) format and reside on the World Wide Web (WWW) server which may be accessed using a WWW browser application. The Internet site, or URL, for the NASA/ARC Business Opportunities home page is http://procurement.nasa.gov/EPS/ARC/class.html [REPLACE "ARC" IN BOTH PLACES WITH THE ARC'S ABBREVIATION] Posted 06/02/99 (D-SN338302). (0153)

Loren Data Corp. http://www.ld.com (SYN# 0155 19990604\Z-0010.SOL)