W50S8A-24-B-5200 RFI LOG_20240312.xlsx
XLSX spreadsheet 29 KB Posted
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- Buildng 254 Roof Repair
- Solicitation number
- W50S8A24B5200
About this file
This document contains an invitation for bids for roof repair services on Building 254 at Pease Air National Guard Base in Newington, New Hampshire. The solicitation seeks a firm fixed price contract to remove and replace three flat roofs totaling 33,250 square feet with an adhered PVC system. Additional work includes demolition of existing structures and hazardous material abatement. The anticipated period of performance is 270 days. Interested small businesses must submit bids by the closing date and time of February 29, 2024 to be eligible for award of this 100% small business set-aside contract under NAICS code 236220, Construction of Commercial and Institutional Buildings, with a size standard of $45 million. A pre-bid conference and site visit will be held on February 8, 2024. The bid opening will occur on February 29, 2024 at the Portsmouth Armory.
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RFI
| RFI TRACKER - W50S8A-24-B-5200 | |||||
| SZCQ212200 Hangar 254 Roof Repair | |||||
| RFI # | TITLE | Date Received | Date Posted | ANSWER | ADDENDUM ISSUED/REQUIRED |
| 1 | The specifications state the contractor is responsible for asbestos testing. If the test results are positive, will a change order to remove the existing flashings as asbestos containing material be given? | 14-Feb-24 | 26-Feb-24 | Mastic on the original wall panels of the 1950's hangar structure underneath the 2" rigid insulation and corrugated metal wall panels is presumed ACM, see Keynote 2 AD001 and Details 5 & 6 AD521. Given age of the shop area addition and previous asbestos testing (see report provided per RFI 8), further ACM is not anticipated. If the contractor identifies additional ACM, an equitable adjustment will be negotiated for any required abatement. | N/A |
| 2 | Not Used | ||||
| 3 | The drawing show the lightning protection being removed and then reinstalled after the new system is in place. Is the existing lightning protection being reused or is it new? If reused, does it have to be recertified? | 14-Feb-24 | 26-Feb-24 | In general, the lightning protection system is new. Refer to Existing Keynotes throughout the drawing set for select components of the existing system that are to remain (Examples: most down conductors, but not all, and some air terminals). Specification section 26 41 00 outlines the testing requirements. | N/A |
| 4 | For bids being submitted by courier, please provide delivery address. | 15-Feb-24 | 26-Feb-24 | The address is on page 9 of the SF1442, paragraph 4.3 under the "Instructions to Bidders". | N/A |
| 5 | Is there a staging area available on site to store mechanical equipment, or must all mechanical equipment be moved off-site and stored by the contractor for later reinstallation? | 16-Feb-24 | 26-Feb-24 | Outdoor staging areas on the installation, in the vicinity of the project site will be made available to the contractor. | N/A |
| 6 | Will temporary protection be required at entrances? Can entrances to the existing building be closed? Please clarify what entrances must remain open, and what entrances may be closed during construction. | 16-Feb-24 | 26-Feb-24 | The main entrance and airfield side entrance must remain usable during construction, provide protection if/when construction activities would create a hazard at these locations. Other entrances are to remain available for emergency egress, but may be closed for routine use when work effects these areas. | N/A |
| 7 | Please confirm if mechanical TAB / commissioning pre and post verifications should be made to existing equipment being removed from the roof, to confirm operation prior to the contractor moving equipment off the roof and to confirm operation following reinstallation of equipment? | 16-Feb-24 | 26-Feb-24 | Pre- and Post TAB is required on all equipment that is to be removed and re-installed. If an item is to be demolished it does not need to be TAB'd | N/A |
| 8 | Has a hazardous materials survey been completed for the existing roof? If a survey has been completed, is the report available? | 16-Feb-24 | 26-Feb-24 | "Limited Asbestos and Lead Sampling Report - Building 254" dated November 17, 2021 is attached. | N/A |
| 9 | the contract documents do not discuss any phasing requirements specific to the timing of the removal and reinstallation of the rooftop HVAC equipment. Are there any phasing or outage timing requirements for this rooftop equipment? | 16-Feb-24 | 26-Feb-24 | Specific phasing is not required. However, interruptions and outages should be minimized to that which is reasonably necessary for the diligent completion of the work. Coordinate with the Government during construction as indicated in the project documents. Note that the majority of the spaces under Roof 1 have been temporarily vacated and present less of a concern for interruption of Government operations than Roof 2 & 3. | N/A |
| 10 | The specifications call for 1/4” per foot tapered insulation with an R-30 base. Our concern is that this will result in an insulation height that exceeds the wall height. Will it be acceptable to use 1/8” tapered insulation in lieu of 1/4” to reduce the overall height of the insulation at the walls? | 15-Feb-24 | 26-Feb-24 | Per UFC 3-110-03 section 6-4-4, a 1/4":12 slope is the minimum allowable slope where 1/2":12" slope cannot be achieved. Section C402.2.1.1 of the 2021 IECC allows the R-value calculation to use average thickness of the roof insulation; therefore, an R-30 base would not be required in all areas of the roof. Coordinate with roofing manufacturer for insulation calculations and design. |
| Th existing roof structure is also sloped. Please see drawings "SZDT001064 ADAL Aircraft Maintenance Hangar 254 - Reference Drawings.pdf" provided with the solicitation. | N/A | |||||
| 11 | What is the square feet of the ceiling removal and reinstallation | 19-Feb-24 | 26-Feb-24 | For bidding purposes assume approximately 3,000 square feet of ceiling removal and reinstallation. | N/A | |
| 12 | What is the height of the ceiling to be removed salvage and reinstall? | 19-Feb-24 | 26-Feb-24 | Heights vary - ceilings range from approximately 8'-0" to 12-0" and spaces open to structure range from approximately 10'-0" to 18'-0". | N/A | |
| 13 | Solar Collector – is this system contains Glycol and do we have to remove the complete system including fluid and reinstall or just the tubes? | 19-Feb-24 | 26-Feb-24 | The solar collector assembly and support frame on the roof needs to be removed to the extent necessary to replace the roofing. Glycol should be drained and stored for reuse as necessary for removal of the solar collectors to allow the roofing to be replaced. After the roofing is replaced reinstall the collectors and refill with salvaged glycol. | N/A | |
| 14 | Please provide mechanical units information that are to be removed and reinstalled (size, weight, manufacturer etc.) | 19-Feb-24 | 26-Feb-24 | Specific information about equipment weight, etc. is unavailable. Please see attached photos of mechanical equipment. | N/A | |
| 15 | The amount of insulation in the roof is too little compared to the 6 inches required. Shall the contractor install the 6 inches required or reinstall the current amount as seen during the core sampling of the roof? | 19-Feb-24 | 26-Feb-24 | As part of the new PVC roof system, insulation must be installed at a thickness that meets or exceeds the R-30 requirement (shown on detail 1/AE521) as determined by the roofing manufacturer. Refer to RFI #10 response regarding tapered insulation. | N/A | |
| 16 | Is the are of work considered in a FOD zone? | 19-Feb-24 | 14-Mar-24 | A "FOD Zone" is not a defined term. The project is in close proximity the airfield, so FOD is of heightened concern. FOD control is required as stated in Section 01 35 13 Para 2.1.1 and Section 02 41 00 Para 1.9. The FOD checkpoint for vehicles entering the airfield will be relocated closer to Flightline Rd such that it is not within the project area. | N/A | |
| 17 | Is the area of work considered in the Red zone? | 19-Feb-24 | 14-Mar-24 | A "Red zone" is not a defined term. If the question is regarding being in a restricted area, which is typically deleniated by a red line, then no, it is not in a restricted area. However, the adjacent airfield is a restricted area and the hangar bay is a restricted area when aircraft are present. | N/A | |
| 18 | During the process of construction, will construction equipment be within the flight path and require a crane or equipment permit through the FAA? | 19-Feb-24 | 14-Mar-24 | Construction equipment will not be within a flight path. Any use of a crane above immediately adjacent existing obstructions may require FAA notification per Section 01 45 13 Para 3.1.2. As the work is not on the actual aircraft operations area, the operations plan, markings, and scheduling, radio contact, and training requirements generally will not apply as listed in Section 01 45 13 Para 3.1. | N/A | |
| 19 | Drawings AD101 & 102 general removal note 6 state to existing 2x wood blocking is to be examined for damage and decay. If unsuitable wood blocking is encountered, remove and provide wood blocking to match. For fair and accurate pricing between contractors and without being able to remove the existing roof and inspect the wood blocking contractors wont know how much blocking to include in the proposal. Can the Government confirm a linear footage to be carried? | 15-Feb-24 | 14-Mar-24 | For bidding purposes, assume 850 linear feet of unsuitable blocking. | N/A | |
| 20 | Drawing AD101 removal note # 8 states to remove vent through roof flashing. The two ducts on the south edge of the roof show note 8. Please confirm this is the correct detail to be using? | 15-Feb-24 | 14-Mar-24 | Removals keynote #8, noted as (SIM) in these locations, is correct - it is referring to flashing at the duct support locations below with similar characteristics to vent through roof flashing. | N/A | |
| 21 | All the details on drawing AD521 state remove EPDM roof system and the pointer line is showing to include the roof system and decking. But all the notes show the decking in light grey color representing that existing is to stay. Please confirm if the roof decking is to be replaced? | 15-Feb-24 | 14-Mar-24 | The existing roof deck is to remain. | N/A | |
| 22 | Will the contractor be allowed to drive a lull machine on the runway side of the building in order to be able to stock and remove debris? | 15-Feb-24 | 14-Mar-24 | Yes, access on the flightline side of the building will be permitted for personnel and equipment. | N/A | |
| 23 | roofing suppliers are excluding the 125 mile an hour requirement because no manufactures have this requirement for metal decking . This requirement is only able to be provided with a concrete deck. Please confirm how to proceed? | 26-Feb-24 | 14-Mar-24 | Please note that 125mph is the design wind speed for uplift resistance and not the warranty wind speed, which is 72mph. Due to the fully adhered requirement, roofing manufacturers have advised that, although the proposed roof assembly is a fully warrantable system, there are no independently tested/ rated roof assemblies for this particular scenario. Delete 1/2" roof underlayment board from roof assembly and apply self-adhered air/vapor retarder directly to metal deck. Please see revised drawings AE001, AE521 and revised specification section 07 54 19. | Yes, Addendum 1. | |
| 24 | Per RFI response #10, it states the deck is structurally sloped and that tapered iso would not be required in all areas. Drawings SZDT001064 also indicate the existing slope. However, the symbols legend on page two of drawings SZCQ212200 along with roof plans indicate tapered insulation for the entirety of the roof areas being replaced. Can you clarify if the drawings are labeled incorrectly? Or is it going to be a fully tapered system? | 26-Feb-24 | 14-Mar-24 | The finished roof surface must provide a minimum slope of 1/4":1'-0" to provide proper drainage as indicated in RFI response #10. That slope can be achieved by the existing roof deck/structure slope, tapered insulation, or a both. The slope of the existing roof deck/structure varies between grid lines and across roof levels. In many areas, the slope of the existing deck/structure does not meet the minimum required slope for drainage; therefore, additional tapered insulation will be needed. In several areas, the existing deck/structure slope appears to meet or exceed the minimum slope and tapered insulation would not be required - those areas have been indicated on drawings AE101 and AE102. The symbols legend on drawing G-002 have been updated. | Yes, Addendum 1. | |
| 25 | Are certified funds acceptable as an alternative to a standard bond? | 19-Feb-24 | 14-Mar-24 | No alternatives to standard bonds are being considered for this project | N/A | |
| 26 | Please confirm if taxes should be carried in proposals? | 19-Feb-24 | 14-Mar-24 | Bids should include any applicable taxes. | N/A | |
| 27 | Please confirm if any state, local, and/or Federal permits will be required on this project? | 19-Feb-24 | 14-Mar-24 | No permits are required. FAA notification per Section 01 45 13 Para 3.1.2. may apply. | N/A | |
| 28 | Mentioned in the general notes for removal, the existing rooftop equipment and penetrations shall remain in place. Is the government requiring that these penetrations and equipment remain at their current elevation? | 19-Feb-24 | 14-Mar-24 | It is anticipated that there will be sufficient curb height for the existing mechanical equipment to remain in place. | N/A | |
| 29 | The Solar collector is currently sitting on the roof and has a low curb, shall the contractor reinstall at a new elevation to be consistent with the newly installed roof height? | 19-Feb-24 | 14-Mar-24 | The solar collector will be installed at a higher elevation as shown in detail 8/AE521. | N/A | |
| 30 | The drawings mention that the contractor is to support the communications cable temporarily and permanently support the communications cable after construction. How does the government want the cable routed and permanently supported? | 19-Feb-24 | 14-Mar-24 | Route cabling on the roof in a similar pathway as exists now. Support the cable as indicated in the revised Drawings E101 and E102. | Yes, Addendum 1. | |
| 31 | Currently there are mechanical equipment shutoffs and starters attached to the curbing of their respective equipment. These items will be in the way of the roof demolition and reinstallation, and also be within the roofing elevation after installation. How shall the contractor proceed with moving the items? | 19-Feb-24 | 14-Mar-24 | Refer to Sheet ED101, Removals Keynotes 3&4; Sheet ED102, Removals Keynotes 6&7; Sheet E-101, Keynotes 3&4; and Sheet E-102, Keynotes 5&6. | ||
| In addition, there is one instance where existing steel slotted strut supports and a junction box are mounted to equipment curbing and therefore must be temporarily supported during roof replacement and permanently re-supported at the completion of work. The location of this equipment has been added to Drawing ED102 and E102. | Yes, Addendum 1. |
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File details come from the government source that posted it. Updated .