ATTACHMENT 6A - Questions Answers.docx

Questions & Answers W50S8Q-20-B-0004 ADAL CE, Bldgs 151 & 119

Q1. Per the drawing Sheet A-104, note A-12 calls for R-30 5” minimum. The spec section 07 22 00 par. 2.1.4 calls for ¼” per ft Tapered insulation & ½” crickets. Looking at the roof at the sight visit, it seems the taper may be in the structure. Are there as-built drawings to check this? (Structural drawings.)

A1. Arch – Confirmed that roof deck contains slope of roof. Please meet requirements of roof insulation at R-30 min. ½” crickets required at roof equipment, penetrations, parapets where needed to provide proper slope for drainage.

Q2. Keynotes on Sheet A-104 Missing notes A-13, A-14, A-32, A-35?

A2. Seems to be a printing error, our print copy shows these keynotes. Attached A-104 for reference.

Q3. Is there a roof drawing on the existing building that shows the drain location so taper insulation, crickets, can be figured? The current drawing does not have the drains on it.

A3. Attached find the latest CAD file of existing roof with drain locations.

Q4. What is the current insulation on the roof deck; any core cuts been taking?

A4. No record of cores taken. 4” Rigid roof insulation R-28 min. is shown on existing drawings. Assume this at a minimum.

Q5. Spec section 270514 talks about coax cable. The only coax I see on the drawings are for TV locations, which are indicated as “existing to remain” (see Technology Outlet Schedule on T-001). Is there new coax on the project?

A5. There is no new coaxial cable on the project.

Q6. Specification 271323 talks about fiber optic cable (as does 271000). The only reference to fiber that I see on the drawings is a Fiber Optic Patch Panel (see Detail 1 on T-502), and I do not see any actual fiber optic cable. Is there new fiber optic cable on the project?

A6. Yes. Provide 12 strand single mode fiber optic cable between Telecom room # 61 to Server room # 65. Extend cable to in room 65 to the south wall of room 66, terminate strands, coil, tag and hang from structure in center of room.

Q7. On Page AD103 Note 03 asks to remove existing paint coating at walls in preparation for new coating. To what extent does the government want the existing paint removed, scrape & clean or sand blasted?

A7. Contractor shall follow section 3.2 SURFACE PREPARATION of section 09 90 00 PAINTS AND COATINGS for existing concrete and masonry units with coated surfaces.

Q8. Please provide the requirement for Hardware set #11 as there is not one specified in 08 71 00.

A8. See page 12 of section 08 71 00. Should be indicated as such;

Set: 11.0 Description: Single interior sound-rated door, office lockset, STC50.

Cam Lift Hinges By sound door supplier 1 Office Lock (F04) AUR4 8809FL LC 626 YA 1 Cylinder (rim/mortise) 12E-72/1E-74 - AS REQ'D 626 BE 1 Wall Stop (L02251) 409 US32D RO 1 Sound seal By sound door supplier 1 Door bottom By sound door supplier 1 Threshold By sound door supplier

Q9. Please provide the existing gear manufacturer information regarding the items highlighted in included drawing (Motor Control Center, and Main Switchboard). Also please provide factory order # from the switchboard, and the factory order # and cell locations from the existing MCC.

A9. : In accordance with Demolition General Note 1 on sheet E-001, the contractor shall visit the site prior to submitting a bid and verify existing conditions. The existing gear manufacturer is Square D. Factory order numbers were not able to be obtained during design and is the responsibility of the contractor to further investigate. If information cannot be obtained during investigation, the contractor shall contact the COR. The (2) 15A/3P circuit breakers shall be installed in the spaces of the existing 7A/3P circuit breakers being removed that were serving HWPs. If they cannot be installed in those particular spaces, there are (4) available spaces in which they can be installed.